Troubleshooting Tips - Arctic King MWHUK-05CMN8-BCK0 Operator's Manual

Window air conditioner
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TROUBLESHOOTING TIPS

TROUBLESHOOTING
Before calling for service, review this list. It may save your time and expense. This list includes common
occurrences that are not the result of defective workmanship or materials in this appliance.
Problem
Air conditioner
does not start.
Air from unit does
not feel cold
enough.
Air conditioner
cooling, but room
is too warm-- ice
forming on cooling
coil behind
decorative front.
Solution
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.
Power is OFF. Turn power ON.
Room temperature below 17 C(62 F ). Cooling may not occur until room temperature
O
rises above 17 C(62 F).
O
O
Temperature sensing behind air filter element touching cold coil. Keep it from the cold
coil.
Set to a lower temperature.
Compressor stopped when changing modes. Wait for 3 minutes after setting to the COOL
mode.
Outdoor temperature below 18 C(64 F). 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.
O
O
O

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