Instruction manual
EU heat pumps
21
Problem:
the heat pump works but stops after a short while
Observation:
the screen displays “OFF”
Possible cause
Solution
Wrong setting of parameters
Check the settings of the parameters and modify if
necessary
Problem:
the heat pump doesn’t stop
Observation:
the screen displays the temperature but no error codes
Possible cause
Solution
Wrong setting of parameters
Check the set parameters and adjust them if
necessary (settings just above the capacity of the
heat pump)
Pressure switch out of order
Check operation of the pressure switch by turning
off the filter pump and restarting it. If the heat
pump doesn’t react to this, the pressure switch
must be adjusted or replaced.
Electrical failure
Contact your installer
Problem:
water leak
Observation:
there’s an amount of water under the heat pump
Possible cause
Solution
Condensation due to atmospheric humidity
No action required
Water leak
Try to localize the leak and check for the presence
of chlorine in the water. If that is the case, the heat
pump must be temporarily replaced during repair.
Problem:
abnormal amount of ice formed on the evaporator
Observation:
the evaporator is for the most part covered in ice
Possible cause
Solution
Insufficient air inflow
Check the location of the heat pump and remove
any dirt that could be present on the evaporator
High water temperature
If the pool water is already quite hot (warmer than
29 °C), the probability of ice formation increases.
Lowering the set temperature is a possible option.
Incorrect setting of automatic defrost control
Check the settings of the defrosting function
together with your installer
The 4-way valve is out of order
Check the voltage in the electrical wiring to the 4-
way valve. If electric potential is measured,
replace the coil. If the problem persists, have the
heat pump checked by a refrigeration technician.
Not enough refrigerant
Have the heat pump checked by a refrigeration
technician.