5�2 Protection Codes - Dantherm HPP-i Serie Benutzer- & Installationshandbuch

5�2 PROTECTION CODES
These codes indicate machine stopping due to external circumstances�
These are not faults with the heat pump�
NO� Display
1 E3
2 E4
3 E5
4 E6
5 Eb
5 Ed
1007332 ISSUE 3
Reason
No water flow through the heat pump.
Three phase rotation protection.
Voltage of power supply to heat pump is
out of range.
Low water flow indicated by more
than 10°C difference in inlet and outlet
temperature.
Ambient temperature is out of range,
either lower than -5°C (-10°C HPP 18,
24, 30 versions) or higher than 43°C.
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.
Solution
Check water circuit and pool pump.
Check phases connected correctly
(Electrician required)
Check the power supply.
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.
33