8�1 Heat Pump Malfunction; 8�2 Protection Codes - Calorex I-PAC Series Owners & Installation Manual

8�1 HEAT PUMP MALFUNCTION
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.
8�2 PROTECTION CODES
These codes indicate machine stopping due to external circumstances�
These are not faults with the heat pump�
NO� Display
1 E3 No water flow through the heat pump.
2 E4 Three phase rotation protection.
3 E5 Voltage of power supply to heat pump is out of range. Check the power supply.
Low water flow indicated by more than 10°C
4 E6
difference in inlet and outlet temperature.
Ambient temperature is out of range, either lower
5 Eb
than -5°C (-10°C Y version) or higher than 43°C.
Frost protection. The heat pump runs in heating mode
5 Ed for a short time when in standby mode to prevent
frost build up. This does not replace winterisation.
1005494 ISS 1
Reason
No power
Power is switched off
Fuse has blown
The breaker is off
Evaporator blocked
Air outlet blocked
3 minutes start delay
Set temperature too low
3 minutes start delay
Stop the machine, and cut off the power supply immediately,
then contact your dealer
Reason
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
Solution
Check water circuit and pool pump.
Check phases connected correctly
(Electrician required)
Check water flow and pool pump.
If outside, wait for ambient
conditions to improve (winterisation
may be required). If installed in
a sheltered place, check for air
recirculation.
Heat pump will resume standby
once process is completed.
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