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The fan motor doesn’t work.
Check whether the indoor (outdoor) fan is locked.
Check the power supply.
Check the wiring.
Check whether the relays on PCB for motor work normally.
Comparing w ith f an m otor spec ification, check
the resistance of fan motor.
Replace the fan motor.
Cooling mode doesn’t work or not cooling not enough.
Check the operation mode.
Check the set temperature.
Check whether the filter is dirty/clogged.
Start t he unit in t he cool m ode and check w hether the
temperature of compressor’s discharge pipe is between 176°F
(80℃) to 194°F (90℃). If no, recharge refrigerant.
Replace the capillary tube.
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Service Manual
Room Air Conditioner with R-410A
Heat Controller, Inc.
22