1 SAFETY FUNCTIONS REPAIR INSTALLATION OPERATION FAULT DIAGNOSTICS COMPONENTS... 17

Transcription

1 1 SAFETY Installation Intended Use Fire Safety Burn Prevention Cookware Safety Food Safety Child Safety Important Safety Instructions - Installer INSTALLATION Installation Attachment Front panel OPERATION Control panel Load Warming utensils Warming food Sabbath function Care and cleaning COMPONENTS Electronics module Housing REPAIR INSTTRUCTTI I ION Warming drawer USA 4.3 Carriage with heated glass plate Auxiliary heater FUNCTIONS Controlling the temperature Calibration of temperature and resistance Factory settings of the electronics module REPAIR Calibration of temperature and resistance Hardware and software version of the electronics module Removing / installing the auxiliary heater Removing / installing the electronics module Removing / installing the glass plate Removing / installing the power coupling Removing / installing the fully extendable rails FAULT DIAGNOSTICS Electronics module faults / Control panel faults Glass plate fault Auxiliary heater fault Power coupling fault Fully extendable rails fault TECHNICAL SPECIFICATIONS _ _ara_en_b Seite 1 von 38

2 1 SAFETY Important Safety Instructions! Read and save these instructions. WARNING! 1.1 Installation When properly cared for, your new appliance has been designed to be safe and reliable. Read all instructions before use. These precautions will reduce the risk of burns, electric shock, fire and injury to persons. When using kitchen appliances, basic safety precautions must be followed, including those following pages. Have the installer show you the location of the circuit breaker or fuse. Mark it for easy reference. This appliance must be properly installed and grounded by a qualified technician. Connect only to properly grounded outlet. Refer to Installation Instructions for details. This appliance is intended for normal family household use only. It is not approved for outdoor use. See the Warranty. If you have any questions, contact the manufacturer. Do not store or use corrosive chemicals, vapors, flammables or nonfood products in or near this appliance. It is specifically designed for use when heating or cooking food. The use of corrosive chemicals in heating or cleaning will damage the appliance and could result in injury. Do not appliance if it is not working properly, or if it has been damaged. Contact an authorized service. Do not repair or replace any part of the appliance unless specifically recommended in this manual. Refer all servicing to a factory authorized service center. 1.2 Intended Use CAUTION! This unit is approved for general residential kitchen use only. It is not approved for outdoor use. The warming drawer is for keeping hot, cooked food warm and to warm up cookware. Never use it to warm or heat a room. Storage - Do not store flammable materials or plastic containers in the drawer. Use care when opening the drawer. Always use potholders when removing cookware. Extreme caution must be used when moving a container containing hot oil or other hot liquids. Do not touch the interior surface of the drawer while it is in use. The interior of the drawer could become hot enough to cause burns. 157_ _ara_en_b Seite 2 von 38

3 1.3 Fire Safety 1.5 Cookware Safety Do not use aluminum foil or protective liners to line any part of an appliance, especially surface unit drip bowls or oven bottom. Installation of these liners may result in a risk of electric shock or fire. If material inside an oven or warming drawer should ignite, keep door closed. Turn off the appliance and disconnect the circuit at the circuit breaker box. Use this appliance only for its intended use as described in this manual. For example, never use the appliance for warming or heating the room. Never use the appliance for storage. Always have a working smoke detector near the kitchen. In the event that personal clothing or hair catches fire, drop and roll immediately to extinguish flames. Smother flames from food fires other than grease fires with baking soda. Never use water on cooking fires. 1.4 Burn Prevention CAUTION! 1.6 Food Safety Plastic containers or plastic wrap can melt if in direct contact with the drawer or a hot utensil. If it melts onto the drawer, it may not be removable. CAUTION! To maintain food safety, follow these guidelines: DO NOT use the warming drawer to heat cold food (exception: it is safe to use the drawer to crisp crackers, chips or dry cereal and to warm plates). Be sure to maintain proper food temperature. The USDA recommends holding hot food at 140 F or warmer. DO NOT warm food for longer than one hour. Exercise caution when opening the appliance. Standing to the side, open the drawer slowly and slightly to let hot air and/or steam escape. Keep your face clear of the opening and make sure there are no children or pets near the unit. After the release of hot air and/or steam, proceed with your cooking. Keep doors shut unless necessary for cooking or cleaning purposes. Do not leave open doors unattended. WARNING! To prevent burns, do not remove drawer while hot. Be sure drawer is empty before removing. 157_ _ara_en_b Seite 3 von 38

4 1.7 Child Safety 1.8 Important Safety Instructions - Installer When children become old enough to use the appliance, it is the legal responsibility of the parents or legal guardians to ensure that they are instructed in safe practices by a qualified person. Do not allow anyone to climb, stand, lean, sit, or hang on any part of an appliance, especially a door, warming drawer, or storage drawer. This can damage the appliance, and the unit may tip over, potentially causing severe injury. Do not allow children to use this appliance unless closely supervised by an adult. Children and pets should not be left alone or unattended in the area where the appliance is in use. They should never be allowed to play in its vicinity, whether or not the appliance is in use. CAUTION! Items of interest to children should not be stored in an appliance, in cabinets above an appliance or on the backsplash. Children climbing on an appliance to reach items could be seriously injured. LEAVE THESE INSTRUCTIONS WITH THE APPLIANCE AFTER INSTALLATION IS COMPLETE. IMPORTANT: SAVE FOR THE LOCAL INSPECTOR'S USE. Be sure your appliance is properly installed and grounded by a qualified technician in accordance with the National Electrical code ANSI/NFPA No. 7 latest edition (or the Canadian Electric Code) and local electrical code requirements. Important: Local codes vary. Installation, electrical connections and grounding must comply with all applicable codes. Never use your appliance for warming or heating a room. Children should not be left alone or unattended in area where appliance is in use. Do not allow children to sit or stand on any part of the appliance. Do not repair or replace any part of the appliance unless specifically recommended in the manual. All other servicing should be referred to a qualified technician. Flammable material should not be stored in the appliance. Before put into operation a front must be attached. 157_ _ara_en_b Seite 4 von 38

5 2 INSTALLATION 2.1 Installation The warming drawer is a built-in appliance. Before the appliance can be operated it must be installed in a built-in unit. WARNING! The built-in unit has a load carrying capacity of 150 pounds (75 kg)! WARNING! Appliances positioned above the warming drawer are housed in a separate built-in unit! Cavity dimensions: Warming drawer 30", Built-in unit 30 x 24 (762 x mm) Warming drawer 36", Built-in unit 36 x 24 (914.4 x mm) 157_ _ara_en_b Seite 5 von 38

6 2.2 Attachment Attach the warming drawer to the unit carcass. Fasteners: Two-part stop 2 screws (Torx) 4 wood screws 4 washers WARNING! When installing the warming drawer, do not kink or pinch the connecting cable! Installation steps: 1. Push the warming drawer as far as the stop 2. Align the warming drawer horizontally in the built-in unit 3. Screw the warming drawer securely to the unit carcass 157_ _ara_en_b Seite 6 von 38

7 2.3 Front panel A front panel encases the warming drawer carriage. WARNING! The front panel with stainless steel elements is very heavy! Installation The replacement of a damaged front panel or the installation of a front panel which matches the kitchen decor is possible. Work steps: 1. Check the dimensions of the front panel 2. Mark the rear of the front panel with the aid of the drilling template 3. Drill holes for screws and fibre optic cable 4. Press the fibre optic cable into the front of the panel 5. Attach the handle to the front panel 6. Screw the screws into the rear of the front panel 7. Attach the front panel to the warming drawer carriage 8. Tighten the screws on the inside of the carriage 157_ _ara_en_b Seite 7 von 38

8 2.3.2 Adjustment The vertical position of the front panel can be adjusted. Work steps: 1. Loosen the screws on the inside of the carriage 2. Adjust front panel Adjustment range: horizontally ± 0.5 mm / 0,019" vertically + 3 mm / 0,118" (upwards)/ 0 mm / 0" 3. Tighten the screws on the inside of the carriage 157_ _ara_en_b Seite 8 von 38

9 3 OPERATION 3.1 Control panel The control panel is only accessible when the warming drawer has been opened Switching off If the OFF button is pressed, the warming drawer switches off provided it is already on. The current warming process is ended Temperature selection The operator sets the required temperature of the glass plate via the temperature selection buttons. Button LOW MED HIGH PLATES Temperature of the glass plate 140 F (60 C) 170 F (77 C) 200 F (93 C) 170 F (77 C) If PLATES is selected, the fan with integrated heater is also activated. The temperature of the current warming process can be adjusted at any time. To do this, press the button for the new temperature setting. 1 Display 4 Buttons for timer programming 2 Buttons for temperature selection 5 Off button 3 Signal lamp 157_ _ara_en_b Seite 9 von 38

10 3.1.3 Timer programming Display The duration of the warming process can be set with the timer programming buttons. Increment: 5 minutes Minimum duration: Maximum duration: 5 minutes 5 hours To increase the duration in steps, press the + button. The set duration can be reduced with the button. If required, extend or reduce the duration of the current warming process. If no duration has been set, the warming drawer will run for a default time of 30 minutes Signal lamp The signal lamp indicates the status of the warming drawer. Signal lamp On Flashing Off Status Closed, running Open, operation interrupted Switched off The display is a multi-digit 7-segment display Duration display The set duration of the warming process can be read off on the display. If the operator opens the warming drawer while it is running, the warming process is interrupted and the current remaining running time is displayed Heat indicator display The heat indicator signals that the temperature of the glass plate is over 122 F (50 C). In this case the letter H is indicated on the display. If the temperature of the glass plate drops below 122 F (50 C), the heat indicator display automatically goes out. If the warming drawer is opened while it is running, the heat indicator is continuously displayed even if the glass plate is still cold Acoustic signal An acoustic signal acknowledges each input on the control panel. When the set duration of the warming process has elapsed, the signal sounds five times in succession. The warming drawer then switches off automatically. 157_ _ara_en_b Seite 10 von 38

11 3.2 Load WARNING! Load the warming drawer with maximum 55 pounds (27.5 kg). If the drawer is overloaded, it will be damaged! Note: Distribute utensils evenly over the entire area. Place heavy items in the rear part of the warming drawer. Stacks of plates warm up more slowly than individual plates. Use heat-resistant utensils. Plastic utensils which come into contact with the glass plate may melt. Do not line the warming drawer with aluminium foil. 157_ _ara_en_b Seite 11 von 38

12 3.3 Warming utensils WARNING! Do not preheat the warming drawer! Duration for warming utensils: How long the warming process lasts depends on the material and the arrangement of the utensils in the warming drawer. A 6-piece crockery set will warm up in approx minutes. Warming plates and bowls: Load the warming drawer Press the PLATES button Set the duration of the warming process as required Close the warming drawer to start the warming process WARNING! Cups will overheat if the PLATES temperature is selected. Risk of fire! Warming cups: Load the warming drawer Press the LOW button, not the PLATES button Set the duration of the warming process as required Close the warming drawer to start the warming process 157_ _ara_en_b Seite 12 von 38

13 3.4 Warming food Preheating the warming drawer: Press the button for the required temperature setting Set the duration of the warming process as required Close the warming drawer to start the warming process Temperature selection Duration of preheating LOW 5 minutes MED 10 minutes HIGH 15 minutes PLATES Preheating not required! Warming food: 1. Load the warming drawer 2. Press the button for the required temperature setting 3. Set the duration of the warming process as required 4. Close the warming drawer to start the warming process Note: Do not warm cold food. Do not keep food warm for longer than one hour. Recommendations for temperature selection: Temperature selection Food Note: WARNING! Do not place hot pots or pans directly from the oven or hotplate into the warming drawer. The glass plate will shatter due to the thermal tension! Warm the serving utensils in the warming drawer during preheating. Transfer food from the hot pots and pans into the warm serving utensils. Cover food with aluminium foil. LOW MED HIGH Perishable frozen food Beef, roasted Proving yeast dough Keeping eggs or bread warm Meat dishes Fish, seafood Fruit, vegetables, porridge Sauces Fried or deep-fried food Drinks in cans Flat pastries Cakes Melting chocolate Dissolving gelatine 157_ _ara_en_b Seite 13 von 38

14 Proving dough: 1. Press the LOW button 2. Set duration to 55 minutes 3. Preheat warming drawer for 15 minutes 4. Place dough in the warming drawer and leave to prove Roasting crackers, crisps or cereals: 1. Press the LOW button 2. Set duration to 60 minutes 3. Preheat warming drawer for 15 minutes 4. Place pastries or cereals in the warming drawer and roast until crispy 157_ _ara_en_b Seite 14 von 38

15 3.5 Sabbath function The Sabbath function allows the operating time of the warming drawer to be extended up to maximum 72 hours on religious holidays. Activating the Sabbath function: 1. Press the button for the required temperature setting. 2. Press the + button until the maximum duration of 5 hours is reached. 3. Hold down the + button until SAB is displayed. 4. After 3 seconds the display switches to 24h and the signal lamp comes on. 5. Press the + button to extend the operating time from 24 hours to 48 or 72 hours as required. 6. After 3 seconds SA is redisplayed. The Sabbath function is activated. Note: The duration of the Sabbath function cannot be changed as soon as the function has been activated. When the duration has elapsed, the Sabbath function is automatically deactivated and the warming drawer is switched off. The Sabbath function can be ended by pressing the OFF button. The warming drawer is switched off at the same time. 157_ _ara_en_b Seite 15 von 38

16 3.6 Care and cleaning Appliance with aluminium front Appliance exterior Clean the appliance with water and a little washing-up liquid. Do not use aggressive or abrasive detergents for cleaning. They will cause scratches or discoloration. Clean with a mild window cleaning agent and a soft window cloth or a lint-free microfibre cloth. Using the cloth, wipe the area in horizontal movements and without applying pressure Glass plate Stainless steel areas Clean the glass plate with a little warm water and washing-up liquid. Then dry the cleaned areas with a soft cloth. Immediately remove any limescale, grease, starch or protein stains. Use water and washing-up liquid for cleaning. Then dry the cleaned areas with a soft cloth. 157_ _ara_en_b Seite 16 von 38

17 4 COMPONENTS The warming drawer is assembled from several components: 1 Housing 6 Electronics module 2 Stainless steel interior 7 Heating coil (Auxiliary heater) 3 Glass plate with printed foil heater 8 Cross-flow fan (Auxiliary heater) 4 Pull-out-rails 9 Power supply 5 Power coupling 157_ _ara_en_b Seite 17 von 38

18 4.1 Electronics module Position: The electronics module is situated behind the control panel. Functions: 1. The control panel forms the interface with the operator. Setting the temperature and the duration of the warming process Switching off the warming drawer Displaying the operating status with signal light Displaying the duration or the remaining running time of the arming process Informing the operator via the acoustic signal Displaying error states 5. Service mode Calibration of temperature of the glass plate and resistance of the printed heating element Retrieval of hardware and software version of the electronics module 2. Rapid heating up with the PLATES temperature setting Overshooting of temperature after appliance switched on (over control) Reducing the temperature to the set required value 3. Controlling the temperature of the heated glass plate Maintaining the required temperature during the warming process 4. Switching on the auxiliary heater if the PLATES temperature setting is selected. 157_ _ara_en_b Seite 18 von 38

19 4.2 Housing Appliance versions 30" and 36": The appliance versions are designed to be installed in built-in units of different widths (30 and 36 ). Therefore the front panel has different widths. The size of the other parts of the housing is identical. Material: The outer housing is made of steel. The inner compartment of the warming drawer is made of stainless steel. The air locked between the inner and outer housing provides thermal insulation for the warming drawer. Components integrated in the housing: Fully extendable runners (without self-closing runner) Electronics module with control panel Auxiliary heater Power coupling for the heating element of the glass plate 157_ _ara_en_b Seite 19 von 38

20 4.3 Carriage with heated glass plate The carriage consists of several components. 1. The pull-out rails connect the carriage to the fully extendable runners of the housing. 2. A glass plate (hard glass) forms the base of the carriage. 3. The underside of the glass plate features a printed foil heater. The power of the heater is 515 W. 4. A power coupling on the rear of the carriage connects power to the foil heater when the carriage is closed (principle: cordless kettle) 5. Front and handle of the front panel vary depending on the make and version of the warming drawer. 157_ _ara_en_b Seite 20 von 38

21 4.4 Auxiliary heater The auxiliary heater consists of a heating coil and a cross-flow fan. Both components are connected with the PLATES temperature setting. The auxiliary heater supplies the inner compartment with additional heat. The heating coil warms the air in the inner compartment of the warming drawer. A two-point temperature switch controls the temperature. The cross-flow fan circulates the air in the warming drawer. The circulating air flows around the utensils. As a result, the temperature is distributed evenly in the warming drawer. Therefore several utensils warm up more quickly. 157_ _ara_en_b Seite 21 von 38

22 5 FUNCTIONS 5.1 Controlling the temperature Technical principle: The printed conductors of the foil heater consist of a metal alloy, the resistance of which increases as the temperature rises (PTC). The specific resistance of the heating element is 0.1 ohm/k. The electronics module controls the temperature of the glass plate on the basis of the temperature-dependent resistance of the heating element. Procedure: The electronics module measures the resistance of the heating element at intervals of 25 seconds. To conduct this measurement, the electronics module interrupts the heating circuit for 0.5 seconds. The electronics module compares the measured value of the resistance with the required value. This required value is saved in the electronics module for the selected control setting. When the warming drawer is switched on for the first time in the factory, the resistance and the surface temperature of the glass plate are measured at room temperature. The electronics module saves the measured value. The associated heating curve is determined in consideration of the temperature of the glass plate. 157_ _ara_en_b Seite 22 von 38

23 5.2 Calibration of temperature and resistance Why does the heating element resistance require calibration? The temperature of the glass plate is controlled indirectly. The electronics module measures the temperature-dependent resistance of the heating element. To establish a correlation between the temperature and the resistance, these two variables must be calibrated. When is the calibration required? The calibration must always be run if there is a new combination of electronics module and glass plate with heating element. This situation occurs during production of the warming drawer in the factory, if replacing the electronics module or if replacing the glass plate. 157_ _ara_en_b Seite 23 von 38

24 5.3 Factory settings of the electronics module Heating curve: There are no default values saved in the electronics module for the resistance of the heating element and for the temperature of the glass plate: Following installation of a new electronics module, the temperature and resistance must be calibrated (see error codes). Rapid heating up of the warming drawer at the PLATES temperature setting: The aim is that the inner compartment of the warming drawer heats up quickly when the appliance has been switched on. Therefore the electronics module controls the temperature of the glass plate first to 200 F (93 C). This heating-up phase lasts 12.5 minutes. Then the controller operates at the required value 170 F (77 C) of the PLATES temperature setting. Error codes: Display E01 E02 E03 Meaning The required temperature was not reached after 90 heating cycles. The heater was switched off. The appliance must be calibrated. There is no valid data available. The heating element resistance of the glass plate is less than 23 ohm (short-circuit detected). The heater was switched off. 157_ _ara_en_b Seite 24 von 38

25 6 REPAIR 6.1 Calibration of temperature and resistance The electronics module features a service mode. This service mode must be activated for calibration of the glass plate temperature and resistance of the printed heating element Conditions for calibration The warming drawer was not operated prior to calibration. The temperature of the glass plate is at room temperature and must not exceed 99 F (37 C). The temperature of the glass plate is the same on all points of the surface. Note: Even after the warming drawer has been operating for a short time, the temperature of the glass plate is over 99 F (37 C). If the temperature of the glass plate is too high, a fan will cool it down more quickly. A cold glass plate can be heated up to room temperature by briefly operating the warming drawer Implementing the calibration The following steps are required to implement the calibration: Operator action LED Display Remark Open warming drawer Off Off Initial state Press buttons and + for 10 s Close the warming drawer within the 20 s and wait until the LED flashes Flashes for 20 s Is lit and flashes later SEr for 20 s SEr No action Return to initial state Open warming drawer Flashes SEr Service mode is activated Press PLATES button for 5 s Measure temperature of the glass plate Set measured value of the temperature with the and + buttons Close warming drawer and open again Flashes F:68 F.68 is the default temperature SEr At least three measuring points Flashes F:74 Temperature 74 F here as example Flashes F:74 Measure the resistance and calculate the heating curve Press PLATES button for 5 s Flashes five times Leave service mode 157_ _ara_en_b Seite 25 von 38

26 6.2 Hardware and software version of the electronics module The service mode of the electronics module allows the hardware and software versions of the electronics module to be read out. To retrieve the versions, implement the following steps: Operator action LED Display Remark Open warming drawer Off Off Initial state Press buttons and + for 10 s Flashes for 20 s SEr for 20 s Close the warming drawer within the 20 s and wait until the LED flashes Is lit and flashes later SEr No action Return to initial state Open warming drawer Flashes SEr Service mode is activated Press PLATES button for 5 s Flashes F:68 Default temperature displayed Press the MED button Flashes H:03 Hardware version Press the MED button Flashes S:04 Software version Press the MED button Flashes F:68 Return to default temperature display Press the OFF button Off Off Leave service mode 157_ _ara_en_b Seite 26 von 38

27 6.3 Removing / installing the auxiliary heater The auxiliary heater consists of the heating coil and cross-flow fan. If replacing the auxiliary heater, remove the unit completely. WARNING! The sheet metal parts have sharp edges! There is a risk of injury. When installing the spare part, perform the steps in reverse sequence. Work steps: 1. Take the warming drawer out of the built-in unit cavity 2. Remove the 4 screws from the service cover on the right outer side 3. Remove service cover 4. Disconnect the plug-and-socket connections (A) on the electronics module 5. Remove 4 screws from the sheet metal holder (B) of the auxiliary heater 6. Take auxiliary heater out of the housing, carefully pulling out the cable harness To replace the auxiliary heater, perform the following steps: 7. Loosen the attachment (C) of the cable harness 8. Remove 4 screws from the auxiliary heater on the sheet metal holder 9. Disconnect the plug-and-socket connections (E) on the auxiliary heater or reconnect to the spare part 157_ _ara_en_b Seite 27 von 38

28 Note: The heating circuits in the appliance can be measured on the 4-pin and 2-pin plugs on the board. 4-pin plug: The two inner contacts on the plug establish connection with the power supply. The two outer contacts on the plug connect the electronics module to the power coupling bushing in the housing. The power coupling connects the heating element of the glass plate to the power supply when the warming drawer is closed. 2-pin plug: The two contacts of the plug connect the auxiliary heater to the power supply. 157_ _ara_en_b Seite 28 von 38

29 6.4 Removing / installing the electronics module The electronics module can be removed or installed from the outside of the appliance. WARNING! The sheet metal parts have sharp edges! There is a risk of injury. Work steps: 1. Take the warming drawer out of the built-in unit cavity 2. Remove auxiliary heater 3. Remove 2 screws from the right outer side of the housing (A) 4. Open carriage 5. Remove 2 screws from the right inner side of the housing (B) 6. Remove electronics module When installing the spare part, perform the steps in reverse sequence. 157_ _ara_en_b Seite 29 von 38

30 6.5 Removing / installing the glass plate The glass plate is a component of the carriage. Therefore, if the glass plate is defective, replace the complete carriage. WARNING! The sheet metal parts have sharp edges! There is a risk of injury. The connecting kit (C) can only be replaced when the carriage is removed Work steps: 1. Open the carriage all the way 2. Remove 1 screw (A) each from the top side of the two carriage rails 3. Pull carriage forwards out of the holder (B) 4. Lift out the carriage When installing the spare part, perform the steps in reverse sequence. WARNING! Install the entire carriage on the profiles of the fully extendable rails! Otherwise, the service life of the fully extendable rails will be reduced by the uneven load. 157_ _ara_en_b Seite 30 von 38

31 6.6 Removing / installing the power coupling The power coupling consists of a plug and a socket. The plug is integrated in the rear panel of the carriage. The power coupling socket is situated on the rear panel of the housing. Note: When the warming drawer is opened and closed, the power coupling generates friction noises. These noises are quite normal and are unavoidable. WARNING! The sheet metal parts have sharp edges! There is a risk of injury Power coupling socket in the housing The power coupling socket is removed from the rear of the appliance. Work steps: 1. Take the warming drawer out of the built-in unit cavity 2. Remove the 4 screws from the service cover on the rear of the housing 3. Disconnect the plug-and-socket connection 4. Remove service cover 5. Loosen 2 screw connections on the sheet metal holder of the power coupling 6. Remove 2 screws from the plastic cover of the power coupling 7. Remove power coupling socket from the sheet metal holder 8. Disconnect the plug-and-socket connections or reconnect to the spare part When installing the spare part, perform the steps in reverse sequence Power coupling plug in the carriage The power coupling plug can be removed from the rear of the carriage. Work steps: 1. Remove carriage 2. Remove the 4 screws from the service cover of the power coupling on the rear of the carriage 3. Remove service cover 4. Remove 2 screws from the plug of the power coupling 5. Remove power coupling plug When installing the spare part, perform the steps in reverse sequence. 157_ _ara_en_b Seite 31 von 38

32 6.7 Removing / installing the fully extendable rails The fully extendable rails must be removed from the underside of the housing. Note: Do not remove lubrication applied by the factory! Otherwise the running properties of the fully extendable rails will be lost and the service life of the integrated ball bearings will be reduced. WARNING! The sheet metal parts have sharp edges! There is a risk of injury. Work steps: 1. Remove carriage 2. Take the warming drawer out of the built-in unit cavity 3. Remove 4 screws from the underside of the housing 4. Remove fully extendable rails When installing the spare part, perform the steps in reverse sequence. 157_ _ara_en_b Seite 32 von 38

33 7 FAULT DIAGNOSTICS 7.1 Electronics module faults / Control panel faults Description of fault Causes Measures Appliance does not function, signal lamp does not come on Appliance does not function, signal lamp does not come on Appliance is not adjusted to the set temperature Appliance operates at a too high or too low temperature Appliance does not function, signal lamp does not come on Error code E01 displayed Power supply interrupted Power circuits for the heaters (glass plate and auxiliary heater) interrupted Overload protection for the electronics module actuated Power circuits for the heaters (glass plate and auxiliary heater) interrupted Electronics module defective Control panel defective Electronics module defective Defective calibration of temperature and resistance Control panel LED defective Required temperature not reached after 90 heating cycles Relay on the electronics module defective Check power supply unit (power supply) Check power circuits for the heaters (glass plate and auxiliary heater) Replace electronics module Check power circuits for the heaters (glass plate and auxiliary heater) Replace electronics module Replace electronics module Calibrate appliance Replace electronics module Check circuit of the printed heating element (glass plate, power coupling) Check resistance of the heating element (Technical specifications) Replace electronics module Error code E02 displayed No valid data available Calibrate appliance Error code E03 displayed The resistance of the printed heating element on the glass plate is less than 23 ohm (short-circuit detected). Check circuit of the printed heating element (glass plate, power coupling) 157_ _ara_en_b Seite 33 von 38

34 7.2 Glass plate fault Description of fault Causes Measures Glass plate broken Replace carriage Glass plate has deep scratches Replace carriage Visible narrowing of the printed conductors on the printed heating element Production fault Replace carriage 157_ _ara_en_b Seite 34 von 38

35 7.3 Auxiliary heater fault Description of fault Causes Measures Cross-flow fan generating loud noises (clattering) Auxiliary heater twisted Auxiliary heater installed incorrectly Bearings of the cross-flow fan defective Switch off appliance and leave to cool down Replace auxiliary heater Auxiliary heater does not function Auxiliary heater is not connected Circuit of the auxiliary heater interrupted Cross-flow fan defective Switch off appliance and leave to cool down Check auxiliary heater (cross-flow fan, safety switch) Temperature safety switch for the auxiliary heater actuated Replace auxiliary heater if defective Check voltage output on the electronics module Replace electronics module if defective 157_ _ara_en_b Seite 35 von 38

36 7.4 Power coupling fault Description of fault Causes Measures Glass plate is not warming up Power coupling without contact Replace power coupling Loud friction noises when the drawer is opened and closed Power coupling contacts worn Replace power coupling Carriage closes with difficulty Power coupling on carriage and housing incorrectly positioned Check position of the power coupling on the carriage and housing Replace power coupling 157_ _ara_en_b Seite 36 von 38

37 7.5 Fully extendable rails fault Description of fault Causes Measures Fully extendable rails run noisily or with difficulty Dirt on the running surfaces Replace fully extendable rails Appliance does not close completely Connecting kit defective Check connecting kit Open carriage is hanging down Fully extendable rails damaged by carriage overload Replace connecting kit Replace fully extendable rails Check that housing base is level 157_ _ara_en_b Seite 37 von 38

38 8 TECHNICAL SPECIFICATIONS Power supply 120 V, 15 A, 60 Hz Heating element of the glass plate Auxiliary heater / heating coil Auxiliary heater / cross-flow fan Total wattage 515 W Ohm / 68 F (20 C) ± 0.1 Ohm/K 400 W 12 W 927 W Model 30": Cavity dimensions 10 x 28 ½ x x 724 x mm Appliance dimensions 11 ¼ x 29 ¾ x 22 (without front panel) x 755 x 560 mm Model 36": Cavity dimensions 10 x 34 ½ x x x mm Appliance dimensions 11 ¼ x 35 ¾ x 22 (without front panel) x 907 x 560 mm VDE CE UL yes yes yes 157_ _ara_en_b Seite 38 von 38