Gree KFR-32GW/NJ1F, Руководство по обслуживанию

Страница: 47 / 49

47
12.Malfunction analysis
Common malfunction and handling method
Breaker tripped or fuse
burnt out
Both indoor and outdoor
units cannot start up
Air conditioner cannot start up
Improper setting of
temperature
Whether cooling
(heating) load is proper
Malfunction of
refrigerant flow
Poor cooling (heating) ef
fect
When the breaker is set ON, it
will trip at once.
When the unit is turned on, the
breaker will trip in a few
minutes
Measure the insulating
resistance for grounding to
confirm whether there is
electrical leakage in the unit
Check the breaker and measure
the resistance.
No power supply
Check power supply circuit
Transmitting malfunction of
wireless remote control
Check wireless remote control
The power plug is not or
poorly connected
Check and insert the plug tightly
Wrong wiring between indoor
and outdoor unit Check the circuit according to
the circuit diagram and correct
wrong wiring
Controller fuse is burnt out
Change controller fuse
Whether connection between
strong and weak current board
of controller is firm
Make the connecting wire firm
Whether the output wire of
transformer is firm, whether
there is voltage output
Make the connecting wire firm
and check the output voltage
Adjust the set temperature
Check the estimated load of
cooling (heating)
Malfunction of four-way valve Replace the four-way valve
Charge refrigerant Insufficient refrigerant volume
Replace the compressor Malfunction of compressor
Insufficient flow volume of
valve
Open the valve completely