Error codes
Error
code
Error description Action
E1 Protection from high gas pressure. Contact your installer.
E2 Protection from low gas pressure. Contact your installer.
E3 Too low or no water ow. 1. Check that the circulation pump is in operation.
2. Check that the direction of water ow through the
machine is according to the specication.
3. Check that the water ow through the machine goes at
recommended speed.
4. Contact your installer.
E4 Power failure (only PVP28) 1. Check that all fuses are intact.
2. Contact your installer.
E5 Abnormal voltage to the heat pump. Contact your installer.
E6 For a large temperature difference between the inlet
and outlet temperatures (nothing wrong).
Insufcient water ow.
1. Check that the water ows through the machine in the
recommended direction.
2. Check that the circulation pump is in operation.
3. Kontakta installatören.
E7 For the low temperature of the outgoing water. Contact your installer.
E8 For high temperature of hot gas from the compressor. Contact your installer.
EA Superheated evaporator. Contact your installer.
Eb Nothing wrong. Outdoor temperature is too low or too
high.
Wait until the outdoor temperature returns into the heat
pump’s operation range (-7 to +43°C).
Ed Antifreeze warning. Contact your installer.
P0 Control panel communication error. Contact your installer.
P1 Temperature sensor for ingoing pool water. Contact your installer.
P2 Temperature sensor for outgoing pool water. Contact your installer.
P3 Temperature sensor for hot gas from the compressor. Contact your installer.
P4 Temperature sensor for titanium heat exchanger. Contact your installer.
P5 Temperature sensor for gas suction pipe. Contact your installer.
P6 Temperature sensor for the evaporator. Contact your installer.
P7 Temperature sensor for air temperature. Contact your installer.
P8 Temperature sensor for cooling plate (inverter mo-
dule).
Contact your installer.
P9 High current sensor (amps). Contact your installer.
PA Memory for restart delay. Contact your installer.
F1 Compressor driver (inverter module). Contact your installer.
F2 PFC module. Contact your installer.
F3 Compressor start. Contact your installer.
F4 Compressor operation. Contact your installer.
F5 Compressor module overcurrent. Contact your installer.
F6 Compressor module thermal protection. Contact your installer.
F7 Overcurrent protection. Contact your installer.
F8 Cooling plate for inverter module is overheated. Contact your installer.
F9 Fan motor fault. Contact your installer.
Fb Condenser without power/voltage. Contact your installer.
This information is required when contacting the installer or Pahlén AB:
Heat pump model Serial number Installation date Installer Phone number