Breakdown maintenance
The table below lists common failures of this series mobile air conditioner and repair methods.
When the machine is in abnormal operation, simple diagnosis and repair can be conducted based
on the following table, if failures still cannot be eliminated, please contact professional servicemen.
Fuse parameters
Size: φ5X20mm
Voltage: 250VAC
Current: 3.15A
SOME TECHNICAL PARAMETERS OF MACHINE
Detection codes
Multifunction detection
E1
Failure of coil temperature sensor
E2
Failure of indoor temperature sensor
E4
Anti-freeze protection: when coil temperature is lower than 0
℃
, shut down
whole machine. As coil temperature rises again above 8
℃
, the protection is
relieved and the original operating state is resumed.
Failures
Possible causes
Solutions
The air conditioner does not
operate
Power supply is not connected
Connect power supply
Display screen flash shows “FL”
Deenergize and drain water, and then restart to
recover normal operation
Timer shutdown function starts
Shut down for 3min and restart
The refrigeration effect of
the air conditioner is not
good
Exposure to direct sunlight
Draw window curtain
Doors and windows open, and there
are many people or heat sources in
the room.
Close doors or windows, and remove
heat sources
Filters is too dirty
Clean or replace filters
Air inlet or outlet is blocked
Remove blockage
Noise in the air conditioner
is big
The air conditioner is not laid flat
Place on smooth and solid surface, and avoid
shake as much as possible
Compressor does not
operate
Time-delay protection of compressor
has been enabled.
Wait for 3min, and start the air conditioner after
reduction of temperature
15/16
COMMON FAILURES AND DIAGNOSIS
Intelligent Detection of Failures
Failure Repair
