Changes for the Better MITSUBISHI ELECTRIC

Transcription

1 Changes for the Better MITSUBISHI ELECTRIC 2016 HOME REFRIGERATORS NO. SM-RE-1619 SERVICE MANUAL Models MR-FV27EJ-SL-C CONTENTS 1. SPECIFICATIONS OUTLINES AND DIMENSIONS WIRING DIAGRAM REFRIGERANT CIRCUIT NAMES OF THE PARTS TROUBLE SHOOTING TROUBLE CRITERION OF MAIN PARTS TEST POINT DIAGRAM OF MAIN CONTROL BOARD MULFUNCTION DISPLAY AND CHECKING POINT IMPORTANCE DETAIL OF FAULT ANALYSIS DISASSEMBLY INSTRUCTIONS PARTS LIST C...Taiwan

2 1 SPECIFICATIONS Power supply Total capacity (NET) Dimensions (HXWXD) Cabinet Food liner Cabinet Insulation Freezer door Refrigerator door Freezer Cooling system Refrigerator Evaporator Condenser Defrost system Drain Temperature control system Refrigerator room light Ice tray Ice box Freezer pocket Sliding case Glass shelf ( F ) Glass shelf ( R ) Accessories Glass shelf ( V ) Free pocket Egg case Adjust pocket Bottle pocket Vegetable case Drain pan Unit Weight Shipping L mm. kg kg 110V 60Hz 266 (F:64 R:202) 1693 x 555 x 635 Acrylic resin coated steel ABS resin Foamed cyclopenthane Foamed cyclopenthane Foamed cyclopenthane Forced air convection Forced air convection Fin and tube type Concealed type Automatic (Heater defrost) Automatic (drainage) Automatic control LED light board 1 pc. 1 pc. 2 pcs. 1 pc. 1 pc. 2 pcs. 1 pc. 1 pc. 1 pc. 1 pc. 2 pcs. 1 pc. 1 pc

3 1.2 ELECTRICAL PARTS SPECIFICATION Model EEI91E13DCH Power supply 110V 60Hz Compressor Rated input W 35.1 (27 rps) Starting current A 5.2 (Current limiter) Rated current A 0.84 (27 rps) Winding resistance (A.T. : 20 o C) 12.4 W Model MM3-71CCY Motor protector Ambient temperature o C 25 Time Sec. 16 MAX Current A 17.0 Capillary tube Dehydrant Molecular sieve Refrigerant R600a mm. g g 1.6 X 0.55 X Defrosting timer Control board Defrosting control Defrost finish o C Thermister Thermal fuse o C 73 Heater Defrost heater 109 W (110V 111W) Fan motor Model Type Input Revolution 3612JL04WS56G53 DC Brushless W 2.76 W (Vs 4.3V) / 1.08 W (Vs 2.6 V) r.p.m 3,350 (Vs 4.3V) / 2,000 (Vs 2.6 V) Temperature control Thermistor F Thermistor R Freezer Refrigerator Dial position ON OFF OPEN SHUT Warmer o C Normal o C Colder o C

4 2 OUTLINES AND DIMENSIONS Unit : mm 3

5 3 WIRING DIAGRAM (SKELETON WIRING DIAGRAM) 4

6 (ACTUAL WIRING DIAGRAM) 5

7 4 REFRIGERANT CIRCUIT 6

8 5 NAMES OF THE PARTS 7

9 6 TROUBLE SHOOTING 6.1) TROUBLE CRITERION OF MAIN PARTS Components / Part Name Check Method and Criterion Parts Mounted Position Compressor in Model EEI91E13DCH the machine Rated input W 35.1 (27 rps) chamber at the Compressor Starting current A 5.2 rear side of Rated current A 0.84 (27 rps) the frame Abnormal Normal (faulty) Winding (Black-White) 12.4 W Opened ( W ) or (White-Red) (20 ºC) (Red-Black) Measure the resistance with a tester. (Ambient temperature:room temperature 15 o C ~ 25 o C) short circuit (0 W) Compressor in Model MM3-71CCY the machine Motor protector Connected Point Open Close o C Measure the resistance with a tester.(ambient temperature:room temperature 15 o C ~ 25 o C) o C chamber at the rear side of the frame Normal Less than 1 W Abnormal(faulty) Opened ( W ) Motor damper for refrigerator compartment/ slide compartment Measure the resistance with a tester.(ambient temperature:room temperature 15 o C ~ 25 o C) Winding (Blue-White, Red-Yellow) Normal 415 W (Approx.) Abnormal (faulty) Open ( W ) or short circuit (0 W) In the control panel of the refrigerator compartment. Machine chamber fan motor Model Type 4715JL04WS16G51 DC brushless Measure the resistance with a tester.(ambient temperature:room temperature 15 o C ~ 25 o C) Normal Abnormal (faulty) Between 3-1 (GND Between 3-1 : open( W ) and Vcc): About 25k W or between 2-1 : short ( 0 W) In the machine chamber at the rear side of the frame. 8

10 Components/ Part Name Check Method and Criterion Parts Mounted Position Model 3612JL04WS56G53 Type DC brushless Measure the resistance with a tester.(ambient temperature:room temperature 15 o C ~ 25 o C) Normal Abnormal (faulty) In fan grille of the freezer compartment. Refrigerator fan motor Between 3-1 (GND and Vcc): About 25kW Between 3-1 : open( W ) or between 3-4 : short ( 0 W) Defrost Heater Rated input Operation method 111 W (110V) Power ON after defrosting (14 ± 1.5ºC or more) Measure the resistance with a tester. (Ambient temperature:room temperature 15 o C ~ 25 o C) In the drip tray under the evaporator of the freezer compartment Normal 109Ω (Approx.) Abnormal (faulty) Opened ( Ω ) Thermistor Resistance measured under Defrost thermistor the ambient temperature from(kw) Thermistor resistance valves at the muffler -50: to +50: 35 against temperature of evaporator Outside air thermistor in freezer compartment W to 500kW...normal 25 Freezer Refrigerator thermistor at thermistor, 2. Out of the above range Defrost control panel of 20 thermistor...abnormal Refrigerator refrigerator compartment. thermistor 15 Inner thermistor 10 Outside air thermistor under hinge cover Thermistor Check Procedure Resistance 5 Thermistor resistance will vary 0 with the change of temperature Take the temperature around the thermistor, Temperature and then measure resistance using a tester. The relation of resistance and temperature is as shown on the above graph. 9

11 6.2) TEST POINT DIAGRAM OF MAIN CONTROL BOARD 110VAC 110V 110V 110V 10

12 6.3) LED TROUBLE DISPLAY AND CHECK POINT. 1) Trouble is indicated by the blinking number of self-check LED(Red color) which locate at inside refcon assy. (The detail picture as shown in right side.) The blinking number of self-check LED specifies the trouble which has occurred. LED repeats to blinks as many times as the number specified for each trouble cycle. Rule for convert error code from LED to numerical data as below : - For ten's place, LED will light for 0.9s.(Long light period) - Time period while LED off inside its cycle was 0.3 s - For ones' place, LED will light for 0.3s.(Short light period) - Time period while LED off between each cycle was 3 s Example of error code 12 as shown in below timeline. Tens' place Ones' place Tens' place Ones' place LED ON LED OFF 0.9 s 0.3 s 0.3 s 0.3 s 0.3 s 3 s 0.9 s 0.3 s 0.3 s 0.3 s 0.3 s Table shown error code ERROR CODE Trouble Detecting method Check point How to fix Control Tens' place Ones' place 0 2 Communication A commutation error occurs between >Replace the Compressor turns OFF. error of inverter 1 1 Trouble of freezer thermistor 1 2 Trouble of defrost 1 CYCLE 1 CYCLE refrigerator control circuit and inverter control circuit in control board. (They do not transmit and receive data for 10 seconds.) When there is a short or open circuit in the refrigerator compartment thermistor. (NOTE2) When there is a short or open circuit in control board 1. Connector CN9S on control >Repair the After compressor off, the compressor board, contact failure. repeats 30-minute ON and 20-minute OFF 2. Check the resistance of thermistor>replace. 1. Connector CN9S on control >Repair the The defrost heater won t be turned ON. thermistor the defrost thermistor. board, contact failure. 2. Check the resistance of thermistor.>replace. 1 3 Trouble of refrigerator thermistor When there is a short or open circuit in the F-room thermistor. 1. Connector CN9S on control board, 4-pin wire to wire connector >Repair the contact failure. Synchronize the open/close status of R damper with that of compressor 2. Check the resistance of thermistor.>replace. 1 8 Trouble of outside air thermistor (NOTE 2) When there is a short or open circuit in the outside air thermistor. >Replace OPERATION PCB Control it by refering to outside temp at 25 ºC Trouble of freezer fan motor Trouble of BOX FAN When motor doesn t rotate even though power is on When motor doesn t rotate even though power is on 1.Connector CN9S and CN5D on control board, fan motor 4-pin wire to wire connector 2.Check fan motor operation. 1.Connector CN9S and CN5D on control board, fan motor 4-pin wire to wire connector 2.Check BOX FAN operation. >Repair the contact failure. >Replace. >Repair the contact failure. >Replace. * 3 minutes later, the fan motor is reactivated to be checked. * Until the fan motor gets to operate correctly, the buzzer sounds every time the door is closed. * 3 minutes later, the fan motor is reactivated to be checked. * Until the fan motor gets to operate correctly,led self check of CONTROL PANEL flashes on and off. 11

13 ERROR CODE Tens' place Ones' place Trouble Detecting method Check point How to fix Control Clogging of refrigerant pipe or trouble relatedto compressor. (T0: Defrost thermistor temperature at power input, T1: Defrost thermistor temperature when 15 minutes have passed from the power input) When the difference between T0 and T1 is T0 T1 There is any trouble in the circuit which detects current of compressor Trouble of inverter circuit (NOTE4) Trouble of bus-bar voltage The range of bus-bar voltage is not approx. 50 ~ 340 VDC Check the compressor and the pipe. >Replace the control board. When cooling operation returns to normal condition, the display of error code disappears. 5 2 Trouble of inverter software reset function The inverter driving software malfunctions. 5 3 Trouble of startup, synchronization or overcurrent detection (NOTE4) There is no current at compressor startup. The phase current exceeds 5.5 A at compressor startup. The phase current exceeds 3.3 A during compressor operation. A current of 5.3 A or more runs into the bus-bar of control board. Refer to Compressor does not operate topic The compressor is stopped and reactivated 10 minutes later 5 5 Trouble of control board (EEPROM related trouble) (NOTE4) EEPROM (IC11M) accumulates data necessary for control. The data are not input accurately. The microcomputer cannot read the data. >Replace the control board. If abnormality occurs when power is turned on, the compressor is stopped for 10 minutes. When abnormality occurs during normal operation, the compressor keeps operating Defective wiring connecting or trouble of control board Inverter drive module abnormality The errors E50 to E53 keep occurring over one and a half hour. (The situation, which compressor cannot be operated, continues.) The overcurrent error is detected before starting the compressor (failure of the IC in the inverter drive module) Refer to Compressor does not operate topic The error display starts after the error is determined as E56. The error display continues until defrosting starts or cooling operation gets back to normal. (The error display does not disappear by unplugging and plugging the power cord.) (Note5) An attempt to restart the compressor is repeated every 3 minutes. >Replace An attempt to restart the compressor is the control board. repeated every 3 minutes (NOTE1) (NOTE2) (NOTE4) (NOTE5) The setting of Self Mode Check will be displayed and blinks during or Self Mode Check operation. SHORT or OPEN circuit of thermister. When the resistance is Ω, the circuit is deemed open-circuited. When the resistance is 0 Ω, the circuit is deemed short-circuited. The error codes E50 to E55are not displayed even if those abnormalities occur when power is turned on. Therefore, be sure to perform self check mode operation in order to check if any abnormality indicated by these error codes occurs. If those errors still continue for 1 minute after the restart, E56 will be displayed again. 12

14 6.4) IMPORTANCE DETAIL OF FAULT ANALYSIS Flow chart of self - check 1) Self - check monitor circuit For show the fault condition of refrigerator and clarify point. Therefore, self - check monitor control is provided that are able to monitor No. of blinking condition with electric circuit and electric part. Before disconnect power plug please confirm LED self - check. Refrigerator plug connect? No Yes Connect power Self - check Mal Function Display No No change on display Normal operation Yes Check the fault point as malfunction list Disconnect power plug Caution 1. As the part list below couldn't analysis by self - check, then please check by reference to trouble shooting page. - Dilapidation of door switch,refrigerator room and freezer room. - Dilapidation of compressor and fan motor. 2. If have malfunction when supply the power. Compressor and fan motor will not operate 20 minutes. Repair the macfunction Connect power plug 2) Interval of self check analysis - Troubles of thermistor : will check always. - Trouble of defrost heater : will just analyse during defrost display only. (The period checking will analyse the defrost circuit after connect the plug 2 hours ) 13

15 7 DISASSEMBLY INSTRUCTIONS Unplug the power cord before servicing. OPERATING PROCEDURE 1. Freezer room (1) Remove the parts inside the freezer compartment (Glass shelf (F), ice tray and ice box) Fan grille and bell mouth (2) - Remove 1 rivet at mirror hinge section.(see photo 1.) - Cut binder for remove bag out and disconnect the female and male connector of lead wire out.(see Photo 2.) - Remove the 4 rivets at 4 corner of fan grille part(see photo 1.) And then, you can take out the fan grille assy. - Remove the 10 catches for take the fan grille out from bell mouth.(see Photo 3.) Fan motor (3) - Remove the screw and catch for take out fan motor from bell mouth.(see Photo 3.) Photo 1 Photo 2 Photo 3 PHOTOS Rivets Mirror hinge rivet Fan grille assy Rivets Defrost heater (4) - Remove the left and right of heater support from bell mouth for take out defrost heater from bell mouth.(see Photo 3.) Heater Roof Thermal fuse (5) - Remove the S-tape lam that cover at thermal fuse. And then, remove the connector and the plug to take out the thermal fuse. (See photo 4.) CAUTION ON ASSEMBLY 1. Attach defrost heater in place and slacken the lead wire in order to prevent water from entering the glass tube. 2. Attach the drip tray close to the inner box. 3. Attach the thermal fuse in place. 4. Attach the lead wires to the fixture. Photo 4 Photo 5 14

16 OPERATING PROCEDURE 2. Refrigerator room (1) Remove the parts inside the refrigerator compartment (Sliding case, Glass shelf ( R )) Control panel and Duct R (2) - Remove 2pcs of rivets at upper side and remove 2pcs of screws at lower side. And then, you can take the control panel assy out.(see Photo 6.) - Cut binder for remove bag out and disconnect the female and male connector of lead wire out.(see Photo 7.) - Dis-assemble between the control panel and duct R out. (See Photo 8.) CAUTION ON ASSEMBLY 1. Use new tapes and sealing materials for assembly. 2. When putting some tapes across joints, tape them securely so that they will not leak the cool air. 3. Attach a connector securely in order to prevent contacts failure 3. Removing vitamin factory assy (1) Remove the vitamin factory attach.(see Photo 9.) (2) Remove the 2 screw and remove the vitamin up. (See Photo 10.) photo 6 Room light PHOTO Rivets Thermo dial Control panel Photo 7 Photo 8 Photo 9 Photo 10 Vitamin Factory attach Screw DUCT R Control panel Vitamin Factory Screws 4. Remove the Elect cover (1) Take out screw (16 points) (Photo 11) Photo 11 Screw Elect cover Elect attach Connector Catch Photo 12 Screw (2) Pull the electric box cover. For refcon assy, you can remove it from elect attch by remove connector and catch.(photo 12) Refcon assy Diode assy (3) (After service inside elect cover finshed) Please be careful about while do assembly elect cover into cover LR again that must be do not pinch lead wire. Catch Lead wire Cover LR Welding point of back side of refrigerator 15

17 8 PARTS LIST DOOR, BODY PARTS 16

18 DOOR, BODY PARTS NO. PART NO. RoHS PART NAMES SPEC Q'TY/UNIT MR-FV27EJ-SL-C 1 KIEZ91131 <G> FREEZER POCKET 2 2 KIEL01116 <G> EGG CASE 1 3 KIEZ91118 <G> FREE POCKET 1 4 KIEZA0159 <G> ADJUST POCKET 1 5 KIEZ91124 <G> BOTTLE POCKET 2 6 KIEZA0001 <G> DOOR F 1 7 KIEZA0111 <G> MAGNET GASKET ASSY ( F ) 1 8 KIEZA0000 <G> DOOR R 1 9 KIEZA0110 <G> MAGNET GASKET ASSY ( R ) 1 10 KIEE94746 <G> STOPPER HINGE LOCATE AT BOTTOM OF DOOR CAP 1 11 KIEG05741 <G> CATCHER RH LOW OF DOOR F (AT HINGE SIDE) 1 PRICE/PIECE (US$-FCA) RECOMMEND PART NO. 6,7,8,9 ABBREVIATION F R FREEZER ROOM REFRIGERATOR ROOM ENCIRCLED PART NUMBER ARE NOT SHOWN IN THE FIGURES. Remark - Country code : C = Taiwan - Color code : SL = SILVER 17

19 ACCESSORY PARTS 18

20 ACCESSORY PARTS NO. PART NO. RoHS PART NAMES SPEC Q'TY/UNIT MR-FV27EJ-SL-C 1 KIEZA0662 <G> BELL MOUTH 1 2 KIEZ86663 <G> FAN GRILLE PLASTIC PART ONLY 1 3 KIEZ85665 <G> DUCT R ASSY 1 4 KIEZ91410 <G> SLIDE CHILLED CASE 1 5 KIEZ83850 <G> CONTROL PANEL PLASTIC PART ONLY 1 6 KIEHJ3305 <G> THERMO DIAL ( R ) 2 7 KIEZ91470 <G> LAMP COVER 1 8 KIEZ91430 <G> GLASS SHELF ( R ) 2 9 KIEZ91432 <G> GLASS SHELF ( V ) 1 10 KIEZ91405 <G> VEGETABLE CASE 1 11 KIEZ97435 <G> DRAIN PAN 1 12 KIEZ97705 <G> HINGE COVER 1 13 KIEP89701 <G> HINGE UP ASSY 1 14 KIEZ91431 <G> GLASS SHELF ( F ) 1 15 KIEZ91440 <G> ICE TRAY 1 16 KIEZ91487 <G> ICE BOX 1 17 KIEMQ4703 <G> HINGE MID ASSY 1 18 KIEZ97702 <G> HINGE LR ASSY 1 19 KIECD4460 <G> ADJUST FOOT 1 20 KIEZ97461 <G> LEG 1 21 KIEZG0663 <G> FAN GRILLE ASSY 22 KIEZ85858 <G> CONTROL PANEL ASSY INCLUDE ALL OF ELECTRICAL PART AND PLASTIC PART INCLUDE ALL OF ELECTRICAL PART AND PLASTIC PART 23 KIEA74654 <G> SPECIAL RIVET FIX FAN GRILLE TO FOOD LINER 4 24 KIEZ83652 <G> COMP COVER ASSY ATTACH AT LOWER SIDE OF BEHIND REF PRICE/PIECE (US$-FCA) RECOMMEND PART NO. 4,8,9,10,14,15,16 ABBREVIATION F FREEZER ROOM V VEGETABLE R REFRIGERATOR ROOM ENCIRCLED PART NUMBER ARE NOT SHOWN IN THE FIGURES. 19

21 ELECTRICAL PARTS AND UNIT PARTS 20

22 ELECTRIC PARTS NO. PART NO. RoHS PART NAMES SPEC Q'TY/UNIT MR-FV27EJ-SL-C 1 KIEZ97326 <G> ELECT COVER ASSY 1 2 KIEWD0367 <G> REACTOR 1 3 KIEZG0339 <G> REFCON ASSY 1 4 KIEZG0336 <G> THERMAL FUSE ASSY 1 5 KIEZ91399 <G> FILTER 1 6 KIEZ42980 <G> DRYER PIPE SET 1 7 KIEZ97369 <G> VITAMIN UP ATTACH 1 8 KIEK48379 <G> VITAMIN UP 1 9 KIEZ83313 <G> THERMISTOR ( R ) ASSY 1 10 KIEMQ4312 <G> THERMISTOR (DEF) 1 11 KIEHJ3311 <G> THERMISTOR (A.T) 1 12 KIEP42320 <G> FAN MOTOR ASSY 3612JL01WS56G KIEZ91538 <G> DRIP TRAY 1 14 KIEZ91398 <G> HEATER SUPPORT RH 1 15 KIEZ92398 <G> HEATER SUPPORT LH 1 16 KIEMQ4363 <G> LAMP SWITCH 1 17 KIEP64382 <G> TEMP CONTROL BOARD 1 18 KIEWD0360 <G> LED LIGHT BOARD ASSY 1 19 KIEWD0341 <G> PROTECTOR COVER 1 20 KIEWD0340 <G> MOTOR PROTECTOR MM3-71CCY 1 21 KIEWD0277 <G> COMPRESSOR EEI91E13DHC 1 22 KIE <G> U WASHER 3 23 KIEHJ3797 <G> RUBBER MOUNT 4 24 KIEZ97327 <G> ELECT ATTACH PLASTIC PART ONLY 1 25 KIEZG0354 <G> PLUG CORD ASSY 1 26 KIEZA0995 <G> EVAPORATOR 1 27 KIEZ97537 <G> HEATER ROOF 1 28 KIEZG0392 <G> DEFROST HEATER ASSY 110V 111W 1 29 KIEZ83378 <G> THERMISTOR (F) 1 30 KIEHJ4682 <G> DUCT DAMPER 1 31 KIEP89325 <G> OUT FAN MOTOR ASSY 1 32 KIEZ83662 <G> FAN ATTACH 1 PRICE/PIECE (US$-FCA) RECOMMEND PART NO. 3,4,6,9,10,11,12,16,18,20,21,25,26,27,28,29,30,31 ABBREVIATION DEF R DEFROST REFRIGERATOR ROOM ENCIRCLED PART NUMBER ARE NOT SHOWN IN THE FIGURES. **Remark : **1. CONTAIN SERVICE DRYER, CHARGE PIPE (FOR HIGH PRESSURE, LOW PRESSURE), DISCHARGE PIPE, SUCTION PIPE,SWAGELOK ø 6.35 (x2) AND HEAT-SHRINK TUBE (x2) 21

23 PACKING PARTS 4 22

24 PACKING PARTS NO. PART NO. RoHS PART NAMES SPEC Q'TY/UNIT MR-FV27EJ-SL-C 1 KIEZG0970 <G> C.F.B BOX ASSY 1 2 KIEZ91979 <G> TOP CUSHION (FRONT) 1 3 KIEZ97979 <G> TOP CUSHION (REAR) 1 4 KIEG67973 <G> PACKING COVER 1 5 KIEZ97978 <G> BOTTOM CUSHION 1 6 KIEZ97974 <G> C.F.B PALLET 1 PRICE/PIECE (US$-FCA) 23

25 KANG YONG ELECTRIC PUBLIC COMPANY LIMITED. 67 Moo 11, Bangna-Trad Road Km.20, Bangplee, Samutprakarn Thailand. TEL : FAX : information@kye.meap.com Printing Date : October 2016