Gree KFR-32GW/NJ1F, Service Manual

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48
Common malfunction and handling method for air conditioner with indoor and outdoor unit
Air filters are blocked
Clean the filter
Set the fan speed to high or
medium speed
Fan speed was set too slow
Air circulation
is insufficient
Improper installation location for
outdoor unit
Outdoor unit should be installed in a place with well
ventilation, and awning should be installed.
Poor cooling (heating) ef
fect
Fan doesn't run when
FAN mode is set
When unit is cooling or
heating,
both
compressor and
outdoor fan don't run
When unit is cooling or
heating, the compressor
runs but outdoor fan
doesn't run
Filters of indoor unit are
blocked
Clean the filters regularly
Heat exchanger of outdoor
unit is blocked Clean the dust accumulated on the
surface of the heat exchanger
Leakage occurs between high and
low pressure inside compressor
Replace the compressor
Partial blockage of capillary
Replace the capillary
Leakage of refrigerant
Find out the leakage and charge refrigerant
Blockage in one-way valve of
outdoor unit
Replace one-way valve
Burn-out or broken wire of indoor fan
motor
Repair or change the fan motor
Wire according to the circuit diagram
Wrong wiring
Circuit break or damage of fan motor
capacitor
Replace the fan motor capacitor with the
same model and specification
Relay coil is wire-broken Replace the relay
Poor contact of relay Replace the relay
Improper setting of temperature
Adjust the set temperature
Replace the fan motor
Breakage of outdoor fan
Wrong wire connection Wire according to the circuit diagram
Breakage of outdoor fan motor
capacitor
Replace the fan motor capacitor