Classic MWDUC08AR Service Manual Download Page 6

5.2 Cleaning filter 

 

 

 

 

Notice: 

 

Never use hot water over 104

(40

) to clean the 

air filter. Never attempt to operate the unit without 

the air filter. 

 

Every time, when filter check LED light, we 

suggest to cleaning the filter, it will be better for 

healthy, and save energy. 

 

When the AC has not used for a long time, like one 

month or more, we suggest to cleaning the filter 

before re-use.   

 

6 Troubleshooting 

In general, possible trouble is classified in three kinds. 

One is called Starting Failure which is caused from an 

electrical defect, another is ineffective Air Conditioning 

caused by a defect in the refrigeration circuit and 

improper application, and the other is called the 

Structure Damage. 

 

Problem 

Solution 

Air conditioner 

does not start 

Wall plug disconnected. Push plug firmly into wall 

outlet. 

House fuse blown or circuit breaker tripped. 

Replace fuse with time delay type or reset circuit 

breaker. 

Plug Current Device Tripped. Press the RESET 

button. 

Control is OFF. Turn Control ON and set to desired 

setting. 

Air from unit 

does not feel 

cold enough 

Room temperature below 17 

(62

). Cooling may 

not occur until room temperature rises above   

17 

(62

).    

Temperature sensing element touching cold coil, 

located behind air filter. Straighten tube away from 

coil. 

Reset to a Lower temperature. 

Compressor shut-off by changing modes. Wait 

approximately 3 minutes and listen for compressor 

to restart when set in the COOL mode. 

Air conditioner 

cooling, but room 

is too warm- ice 

forming on 

cooling coil 

behind 

decorative front. 

Outdoor    temperature below 17 

(62

). To 

defrost the coil, set FAN ONLY mode. 

Air filter may be dirty. Clean filter. Refer to Care and 

Cleaning section. To defrost, set to FAN ONLY 

mode. 

Thermostat set too cold for night-time cooling. To 

defrost the coil, set to FAN ONLY mode. Then, set 

temperature to a Higher setting. 

Air conditioner 

cooling, but room 

is too warm- NO 

ice forming on 

cooling coil 

behind 

decorative front. 

Dirty air filter- air restricted. Clean air filter. Refer to 

Care and Cleaning section. 

Temperature is set too High, set temperature to a 

Lower setting. 

Air directional louvers positioned improperly. 

Position louvers for better air distribution. 

Front of units is blocked by drapes, blinds, furniture, 

etc. - restricts air distribution. Clear blockage in front 

of unit. 

Doors/ windows/registers, etc. Open- cold air 

escapes. Close doors, windows, registers. 

Unit recently turned on in hot room. Allow additional 

time to remove. Stored heat from walls, ceiling, floor 

and furniture. 

Air conditioner 

turns on and off 

rapidly 

Dirty air filter- air restricted. Clean air filter 

Outside temperature extremely hot. Set FAN speed 

to a Higher setting to bring air past cooling coils 

more frequently. 

Summary of Contents for MWDUC08AR

Page 1: ...North America Air Conditioner Dimensions W mm inch H mm inch D mm inch MWDUC08AR 471 18 5 340 13 4 400 15 7 MWDUC10AR MWDUC12AR 482 19 0 372 14 6 545 21 5 MWDUC Service Manual...

Page 2: ...ach time you press the button the fan speed in four steps Auto Low Med and High On Dry mode the fan speed is controlled at Low automatically Timer Button Press to start or stop the Auto On or Auto Off...

Page 3: ...unction If only set timer off and the unit has been turn off press cancel button the unit will turn on Clock Button Press to set the time LED Button Press to off or light the digit LED display only ca...

Page 4: ...meet the 2013 Energy Star s requirement Requirement Old New If the compressor stop the fan motor running time should less than 5 minutes after that the fan motor running time should less than 17 When...

Page 5: ...be easy to flow to the outside and the water will be helpful to get more capacity and more EER NOTE Check that air conditioner is tilted back about H tiled about 3 to 4 downward to the outside After...

Page 6: ...coil Reset to a Lower temperature Compressor shut off by changing modes Wait approximately 3 minutes and listen for compressor to restart when set in the COOL mode Air conditioner cooling but room is...

Page 7: ...of temperature sensor Temp Temp Resistance K Temp Temp Resistance K 10 14 62 2756 31 87 8 7 6241 9 15 8 58 7079 32 89 6 7 2946 8 17 6 56 3694 33 91 4 6 9814 7 19 4 52 2438 34 93 2 6 6835 6 21 2 49 316...

Page 8: ...1 Volute shell above 2 Evaporator assembly 23 Electronic control box assembly 3 Compressor 23 2 Capacitor of compressor 4 Condenser assembly 23 3 Capacitor clip 5 Installation accessory 23 5 Power cor...

Page 9: ...Classic Industries Inc 7101 NW 43rd Street Miami FL 33166 sales classicairconditioners com...

Reviews: