33
1005494 ISSUE 3
These codes indicate machine stopping due to external circumstances�
These are not faults with the heat pump�
No
Display
Reason
Solution
1
E3
No water flow through the heat pump.
Check water circuit and pool pump.
2
E4
Three phase rotation protection.
Check phases connected correctly (Electrician
required)
3
E5
Voltage of power supply to heat pump is out
of range.
Check the power supply.
4
E6
Low water flow indicated by more than 10°C
difference in inlet and outlet temperature.
Check water flow and pool pump.
5
Eb
Ambient temperature is out of range, either
lower than -5°C (-10°C Y version) 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.
5
Ed
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.
5�2 PROTECTION CODES
