Failures Not Caused By Errors - Gree GUD24W2/D-D(U) Service Manual

GREE

3.5 Failures Not Caused by Errors

(1) If your air conditioner fails to function normally, please first check the following items before maintenance:
Problem
The air conditioner can't
run.
Bad cooling or heating
effect.
DC INVERTER HEAT PUMP CONDENSING UNIT SERVICE MANUAL
Cause
If you turn off the unit and then immediately turn it
on, in order to protect the compressor and avoid
system overload, compressor will delay running
for 3min.
Wire connection is wrong.
Fuse or circuit breaker is broken.
Power failure.
Power plug is loose.
Thermostat has low battery.
Air inlet and outlet of the units have been blocked.
Improper temperature setting
Fan speed is too low.
Air flow direction is not right.
Doors or windows are open.
Exposed under direct sunshine.
Too many heat sources in the room.
Filter is blocked or dirty.
Air inlets or outlets of the units are blocked.
Corrective Measure
Please wait for a while.
Connect wires according to the wiring diagram.
Replace the fuse or switch on the circuit breaker.
Restart after power is resumed.
Re-insert the power plug.
Replace the batteries.
Clear the obstacles and keep the room for the units
well ventilated.
Reset a proper temperature.
Reset a proper fan speed.
Change the direction of air louvers.
Close them.
Put on curtains or louvers in front of the windows.
Remove unnecessary heat sources.
Send for a professional to clean the filter.
Clear away obstacles that are blocking the air inlets
and outlets of the units.
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