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YES

Check if there is no
disconnection or contact
failure of the connectors
and connector pins of
powercontrol board.

Are error codes

displayed?

“E0” “E1” “E7” “E8”

“A1” “A2” “A3” “A6” “P4”

Refer to “Error Indications and
CorrectiveActions,” and follow
the procedures.

Does the power lamp light

by turning the power on?

Check the continuity of power cord.

Replace the power cord.

Replace the power control board.

Check the current fuse of
power control board (2A/250V).

Does the detective buzzer beep

by turning the power on?

Check if the lamps and LCD
of control panel light.

How to put out all lighting(Press

the mode switch and the humidity
selection switch together 4 times
when the power is off. Turn on
the power within 2 seconds.)

Check if LED on the operation

control board is down.
(When LED is down, correct it.)

Insert the connector
and connector pins
securely.

Replace the operation control board.

Replace the power control board.

Is “Full lamp” lighting?

Is the tank filled with water ?

Drain water from the tank.

Check the float.

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or attached upside-down?

Is the float movement smooth?

Is a magnet attached to the float?

Check the float switch.

Check if there is no disconnection or

contact failure of the connector (P13) and
connector pins of power control board.

Check the continuity between connecter (P13)

terminals when the water tank is equipped.

Normal… Tank full:open

Empty:short

Replace the float switch.

Replace the power control board.

Replace the operation control board.

Does it dehumidify?

Does the blower fan motor rotate?

Insert the connector
and connector pins
securely.

Check the resistance of the
blower fan motor.
Normal:Between yel

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%HWZHHQEODFNDQGEOXHȍ

Abnormal: Open or short

Check if there is no disconnection
or contact failure of the connector
(P2) and connector pins of power
control board.

Replace the blower fan motor.

Replace the power control board.

Replace the operation control board.

9. Troubleshooting procedure

1) Failure diagnosis flowchart

Содержание MJ-E14CG-S1-IT

Страница 1: ...ts 3 3 Specifications 5 4 Outer Dimensions 5 5 Wiring Diagram 6 6 Function 8 7 Technical Points 9 8 Precautions for failure diagnosis 10 9 Troubleshooting Procedure 11 10 Troubleshooting 18 11 Maintenance 19 12 Service Checklist 21 13 Precautions for Disassembly and Reassembly 22 14 Disassembly and Reassembly Hints 24 15 Parts Catalog 32 ...

Страница 2: ...1 Precautions Note This page is extracted from the instruction manual 2 ...

Страница 3: ...Note This page is extracted from the instruction manual 2 Names and Functions of Parts 3 ...

Страница 4: ...Note This page is extracted from the instruction manual 4 ...

Страница 5: ...3 Specifications 4 Outer Dimensions Note This page is extracted from the instruction manual 5 ...

Страница 6: ...ure exceeds 133 C due to blower locking or other malfunctions blower operation shuts down 5 Current fuse for compressor protection If the protection by motor protector and control circuitry is not effective the compressor shuts down when the current to it exceeds approximately 10A Setting current 10A Safety Devices P1 P11 P20 P100 P2 P3 P5 P4 FM S C R CM P200 P10 P13 SV P201 P101 SM White White Or...

Страница 7: ...2 Board Diagram Power control board Operation control board 7 ...

Страница 8: ...hild lock Operation off Auto Mildew guard Low Temp Intelligent Laundry Easy dehumidifying Full Air purifier Drying inside Defrost Off timer on On timer being set On timer counting Low Operation mode Dehumidifying operation Note Display lamp Operable Timer flashes when on Off stopped inoperable Operable only when swing on lit Operable only when swing on and blower fan rotates LCD LED lights at each...

Страница 9: ...ger cooling Intake φ6 35 Tube temperature sensing thermistor φ6 35 Capillary tube Capillary tube φ2 0 φ0 8 φ340 φ5 0 φ4 0 φ6 35 Humidity sensor Room temperature sensing thermistor Solenoid valve closed when dehumidifying and open when defrosting Note This page is extracted from the instruction manual Coolant Circuit Performance curve 9 ...

Страница 10: ...neration of smoke and or malfunction When performing work with the power on be careful not to touch the live part This may cause electric shock Do not work with wet hands This may cause electric shock After the work lay the wire out as it was before Failure to do so may cause combustion generation of smoke and or malfunction Wear protective gloves Failure to do so may result in injuries by the edg...

Страница 11: ... connector pins securely Replacetheoperationcontrolboard Replace the power control board Is Full lamp lighting Is the tank filled with water Drain water from the tank Check the float Check the float V WKH IORDW VZLWFK FRPLQJ RII or attached upside down Is the float movement smooth Is a magnet attached to the float Check the float switch Check if there is no disconnection or contact failure of the ...

Страница 12: ...ormal Open or short Replace the compressor Is there an overcurrent The surface of the compressor is hot Replace the compressor Replace the power control board Replace the operation control board Is the heat exchanger evaporator cold Check the coolant circuit If the coolant leaks If the tube clogs ƔThe part of the cooler near the tube temperature sensor should be at least 10 C lower than room tempe...

Страница 13: ... is 1 of set humidity or less 5 Off timer It stops at the set time 6 All operation mode Is the off timer operation selected with other operation mode Off timer operation has priority over other modes 1 6 indicate that the unit is operating normally Explain that to the customer Stepping motor louvre does not operate Is the swing louvre switch OFF Does the swing direction of the louvre change to Wid...

Страница 14: ... dust on the room temperature and humidity sensor Remove the dust from the room temperature and humidity sensor Check if there is no disconnection or contact failure of the connector P10 and connector pins of power control board Insert the connector and connector pins securely Check the resistance of the room temperature and humidity sensor P10 connector Normal Between the pin3 and pin4 Nȍ Nȍ Abno...

Страница 15: ...0 to 30 Normal Abnormal Between P11 pins 8 0kΩ to 20 8kΩ Normal 47 to 51kΩ between P10 pins 3 and 4 Abnormal Open or shorted Open or shorted Normal Abnormal Open or shorted Measure the resistance between terminals using a multimeter component temperature 10 to 30 Measure the resistance between terminals using a multimeter winding temperature 10 to 30 2 0kΩ 2 2kΩ Open or shorted Normal Abnormal 28Ω...

Страница 16: ...on error When power is on Outlet power check Replace the main and power supply boards Watchdog timer error Replace the main board Compressor Indication Timer display E0 E1 E7 E8 A1 A2 A3 A6 P4 Frequency determination error During operation Follow the Does it dehumidify in the Failure diagnosis flowchart of P11 1 Deactivating 3 minute restart prevent lock Start Press the MODE and HUMIDITY SELECTION...

Страница 17: ...With the power OFF hold down the MODE and HUMIDITY SELECTION buttons and press the POWER button The demo program starts in 3 seconds Operations all buttons are disabled Fan Fixed at rank 3 Compressor solenoid valve Stopped LCD LED Lights in random sequence Swing louvre Wide End Remove power plug 0 Latest error 7 Oldest error Compressor malfunction detected Error history display Example Latest erro...

Страница 18: ...Note This page is extracted from the instruction manual 10 Troubleshooting 18 ...

Страница 19: ...11 Maintenance Note This page is extracted from the instruction manual 19 ...

Страница 20: ...Note This page is extracted from the instruction manual 20 ...

Страница 21: ...n and or clamp Verify that there is no defect such as lead wire caught in other parts damage and or intermediate connection Verify that there is no defect such as deteriorated or damaged power cord and or intermediate connection Verify that there is no slack and or damage to power cord Are the connectors and metal terminals inserted securely Verify that there is no abnormal sound of the motor etc ...

Страница 22: ...r electric shock Use appropriate tools Failure to do so may result in an accident caused by contact failure or loose parts Do not alter the product This may cause fire electric shock and or injuries Do not touch a rotating object until it completely stops The rotating object may catch your hand etc and result in injuries Check the wiring diagram before wiring processing Failure to do so may cause ...

Страница 23: ... properly and the unit operates without a problem Safety precautions for the inspection and service Keep away Wear gloves CAUTION Wear protective gloves Failure to do so may result in injuries by the edge of metal electric shock and or burns caused by contact with hot section Do not put the unit where it may burn This may cause fire or combustion Perform operation check after reassembly Failure to...

Страница 24: ... the tabs and pull the air filter WRZDUG RX WR UHPRYH ĺ 5HPRYLQJ WKH DLU ILOWHU Precautions for disassembly Ɣ RQQHFWLRQ VKRXOG EH SHUIRUPHG ZLWKRXW IDLO HVSHFLDOO ZKHQ VFUHZV DUH XVHG IRU LW 7LJKWHQ WKH VFUHZV LQ WKDW FDVH Ɣ KHQ WKH FDEOH WLH IL LQJ WKH OHDG ZLUH LV FXW EH VXUH WR UHSODFH LW ZLWK D QHZ RQH Ɣ5HPRYHG OHDG ZLUH VKRXOG EH IL HG WR D FODPSHU HWF DQG SHUIRUP ZLULQJ 14 Disassembly and Re...

Страница 25: ...he water tank ĺ Reference 1 Removing the water tank Removing the front panel assembly and air filter ĺ 5HIHUHQFH 5HPRYLQJ WKH IURQW panel and air filter 5HPRYH WKH VSHFLDO VHWVFUHZV DQG front casing assembly setscrews 4 HWDFK WKH FDWFKHV IURP WKH VLGH RI front casing assembly and pull the front casing assembly toward you so that it is away from the main unit Raise the handle and remove the power c...

Страница 26: ...om the right side of heat exchanger ĺ 5HPRYLQJ DQG UHSODFLQJ WKH temperature humidity sensor Remove the front casing ĺ 5HIHUHQFH 5HPRYLQJ DQG UHSODFLQJ WKH front casing assembly Detach the rear casing setscrews 6 Detach the screw stop bosses 2 on the top of rear casing and the guides 2 on the side of the fan assembly Lift the rear casing upward and remove from XQGHU WKH ORXYUH ĺ UHPRYLQJ WKH UHDU ...

Страница 27: ...separate the lead wire from the blower fan guide casing Detach the catch 1 from the blower fan assembly to remove the WHPSHUDWXUH KXPLGLW VHQVRU ĺ 5HPRYLQJ and replacing the temperature humidity sensor Remove the rear casing ĺ 5HIHUHQFH 5HPRYLQJ WKH rear casing Remove the connector P3 from the power control board and remove the solenoid valve setscrew 1 to remove the solenoid valve ĺ 5HPRYLQJ DQG ...

Страница 28: ...er fan motor lead wires to blower fan guide casing and detach lead wires from the blower fan guide casing Remove the blower fan motor holding plate setscrews 3 Remove the blower fan motor holding plate and cushions to remove the blower fan motor ĺ 5HPRYLQJ DQG UHSODFLQJ WKH blower fan motor Removing the rear casing ĺ 5HIHUHQFH 5HPRYLQJ WKH UHDU casing Removing the power control ERDUG ĺ 5HIHUHQFH 5...

Страница 29: ...DFLQJ WKH EORZHU IDQ DVVHPEO Remove the float switch form the drainpan DVVHPEO ĺ 5HPRYLQJ DQG UHSODFLQJ WKH IORDW VZLWFK Remove the blower fan assembly ĺ 5HIHUHQFH 5HPRYLQJ DQG UHSODFLQJ WKH EORZHU IDQ DVVHPEO Separate all the lead wires from the clampers on the drainpan assembly HWDFK WKH FDWFKHV RQ WKH UHDU VLGH RI GUDLQSDQ DVVHPEO DQG FDWFKHV RQ the front side of drainpan assembly Pull the base...

Страница 30: ...e drainpan assembly ĺ 5HIHUHQFH 5HPRYLQJ WKH drainpan assembly Put a support under the right side RI WKH KHDW H FKDQJHU DVVHPEO Remove the compressor setscrews Remove the compressor and heat H FKDQJHU DVVHPEO IURP WKH EDVH ĺ 5HPRYLQJ DQG UHSODFLQJ the compressor heat exchanger 14 Removing and replacing the compressor heat exchanger assembly 30 ...

Страница 31: ...31 ...

Страница 32: ...rts Catalog Model MJ E14CG S1 IT Exploded View Casing and Structure 106 126 101 A C B 102 116 105 114 117 118 119 115 103 104 107 111 112 113 110 109 108 121 120 122 magnifing picture 123 Instruction Book 32 ...

Страница 33: ... C54 311 M22 C84 320 M48 5C7 859 M22 B25 232 M22 B25 063 M22 C92 200 M22 C44 700 M22 C44 501 M22 B15 218 M22 B15 222 M22 B15 223 M22 B25 224 M22 B15 128 M22 C58 468F 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 4 2 7 TANK ASSY S100C TANK S X COVER T ASSY 100VX A LID TANK 100S X FLOAT ASSY CX CASE F 100VX A ESC SW E14CG S1 IT PCA E14CG IT M CLAER PLATE E16VX FIXTURE PCA M 100T X PANEL F ASSY 100...

Страница 34: ...210 201 205 214 216 215 217 202 204 206 207 209 208 203 D 211 212 213 Model MJ E14CG S1 IT Exploded View Casing and Structure Instruction Book 34 ...

Страница 35: ...936 M22 C94 754 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 STOPPER PLATE 100S X PACKING RUB CUSHION HEX T S X CASING S100D STEPPING MOTOR CX RUN CAPACITOR E26RX LEAD WIRE R C 140TX BOX PCA S100D COVER BOX S100D NET 100B LOUVER V X SUPPORT LOUVER S X INS PLATE MICA S100D LEAD WIRE S M VX NAME PL E14CG S1 IT ESC PL E16S X I B E14CG S1 IT P CASE E14CG S1 IT SCW TPFZR 3X8N Model MJ E14CG S1 IT Parts List C...

Страница 36: ...303 B C 305 304 302 301 D 309 308 307 A E 306 Model MJ E14CG S1 IT Exploded View Electrical Parts 36 ...

Страница 37: ...with these models lack compatibility 3 Those parts that are marked by and are of critical importance for sustaining safety and performance Use specified parts atreplacement 4 When ordering parts without part numbers use the design number The order may take a while to process 1 If the part is out of production you may be required to use a common part 2 Parts found installed in products may have a d...

Страница 38: ...410 422 420 406 405 412 418 419 423 401 402 403 A 411 413 414 415 417 416 421 back 407 408 409 Model MJ E14CG S1 IT Exploded View Compressor Parts 404 38 ...

Страница 39: ...COVER TERMINAL 1400 PACKING 1400PX COMPRESSOR 6TD046DAE PIPE SV CT CG PIPE CT CG CHARGE PIPE CG JOINT E16V X PIPE D J CG PIPE OUT COOL E92CG PIPE IN COOL E92CG PIPE COVER CT 80FX PIPE IN CON CG PIPE SUC CF ASSY PIPE COVER COMP PIPE DIS CF PIPE OUT CON CG SCREW SEMS M5X0 8X6 Model MJ E14CG S1 IT Parts List Compressor Parts 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 ...

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