18
1005759 ISS 1
OWNER/INSTALLATION MANUAL
8�1 HEAT PUMP MALFUNCTION
Fault
Reason
Solution
Heat pump doesn’t run
No power
Wait until the power is restored
Power is switched off
Switch on the power
Fuse has blown
Check and change the fuse
The breaker is off
Check and turn on the breaker
Fan running but with insufficient
heating
Evaporator blocked
Remove the obstructions
Air outlet blocked
Remove the obstructions
3 minutes start delay
Wait for the delay timer to time out
Display normal, but no heating
Set temperature too low
Set desired heating temperature
3 minutes start delay
Wait for the delay timer to time out
Inaccurate switch action.
Stop the machine, and cut off the power supply immediately, then
contact your dealer
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.
8�2 PROTECTION CODES
These codes indicate machine stopping due to external circumstances. These are not faults with the heat pump.
NO
�
Display
Reason
Solution
1
Er 03
No water flow through the heat pump.
Check water circuit and pool pump.
2
Er 04
Frost protection. The heat pump runs in heating mode
for a short time when in standby mode to prevent
frost build up.
This does not replace winterisation.
Heat pump will resume standby
once process is completed.
3
Er 21
Ambient temperature is out of range, either lower
than -5°C or higher than 43°C.
If outside, wait for ambient
conditions to improve (winterisation
may be required). If installed in
a sheltered place, check for air
recirculation.
4
Er 27
The temperature difference between inlet and outlet
water is more than 10°C
Check water flow and pool pump.
