Troubleshooting
Problem Possible cause Remedy
The display is not lit The power plug is not properly
connected to the socket/
extension cable.
Disconnect the power plug from the
socket/extension cable and reconnect it.
The RCD power plug is in the
triggered state (the LED is not
lit).
Press the RESET button
. If the LED is
not continuously lit, contact an authorized
electrician.
No voltage is present at the
socket/extension cable.
Contact an authorized electrician.
The heat pump does not start. The heat exchanger has not
reached its operating
temperature yet.
Wait for 90 seconds after activation.
The current water temperature
is higher than or equal to the set
water temperature.
Set a higher temperature or wait until the
current water temperature drops below
the set water temperature.
The water in the swimming pool
does not reach the desired
temperature even though the heat
pump is running.
The operating time of the heat
pump was too short for it to
reach the set water temperature.
Wait for 24-48 hours.
Ice has formed on the finned heat
exchanger.
The ambient temperature is too
low/the humidity is too high.
Activate manual defrosting (see section
"Operation").
The gas pressure in the
refrigerant circuit is too low (see
section "Testing").
Contact an authorized qualified person.
Liquid is escaping. Condensation water has
accumulated.
Check the drain connection piece and
drain line for blockage.
The water connections are
leaking.
Check the seal and firmly tighten the
union nuts.
The water outlet is leaking (see
section "Testing")
Contact an authorized qualified person.
The refrigerant circuit is leaking
(see section "Testing")
Contact an authorized qualified person.
Display: error message P1 The temperature sensor at the
inlet is defective or does not
emit a signal.
Contact an authorized qualified person.
Display: error message P3 The temperature sensor at the
heat exchanger is defective or
does not emit a signal.
Contact an authorized qualified person.
Display: error message P5 Pressure in refrigerant circuit is
too low.
Contact an authorized qualified person.
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