OWNER/INSTALLATION MANUAL
5�0 TESTING
Inspect the heat pump before use
• Check that the fan, air inlets and outlets are not
obstructed.
• It is prohibited to install refrigeration pipe or
components in corrosive environment.
5�1 HEAT PUMP MALFUNCTION
WARNING: Isolate heat pump electrically, and
wait 3 minutes before removing panels or
entering heat pump�
• Refer to the user check list in section 5.2 and the
error codes listed in section 5.3 before initiating a
service call.
• Do not attempt to interfere with any internal control
settings as these have been factory calibrated and
sealed.
Fault
Heat pump doesn't run
Fan running but with insufficient heating
Display normal, but no heating
Inaccurate switch action
The fuse blows frequently or leakage
circuit breaker trips frequently
If above solutions don't work, please contact your installer with detailed information and your model number.
Don't try to repair it yourself.
32
• Check that the electric wiring conforms to the
electric wiring diagram and that the machine is
earthed.
• Double check that the main power switch is off.
• Check the temperature setting.
• Any sign of abnormal operation such as water
dripping should be reported immediately to the
installer. If in doubt or if advice is required contact
the service department.
Reason
No power
Power is switched off
Fuse has blown
The breaker is off
Evaporator blocked
Air outlet blocked
Compressor start delay
Set temperature too low
Start delay
Stop the machine, and cut off the power supply immediately,
then contact your dealer
Solution
Wait until the power is restored
Switch on the power
Check and change the fuse
Check and turn on the breaker
Remove the obstructions
Remove the obstructions
Wait for the delay timer to time out
Set desired heating temperature
Wait for the delay timer to time out
1007332 ISSUE 5