AQUA FORTE ZWPA Serie Manuel D'installation Et D'utilisation page 28

Problem:
the heat pump doesn't stop
the screen displays the temperature but no error codes
Observation:
Possible cause
1.Wrong setting of parameters
2. Pressure switch out of order
3. Electrical failure
Problem:
water leak
there's an amount of water under the heat pump
Observation:
Possible cause
1.Condensation due to atmospheric humidity
2.Water leak
abnormal amount of ice formed on the evaporator
Problem:
the evaporator is for the most part covered in ice
Observation:
Possible cause
1.Insufficient air inflow
2.High water temperature
3.Incorrect setting of automatic defrost control
4.The 4-way valve is out of order
5.Not enough refrigerant
Solution
1.Check the set parameters and adjust them if necessary
(settings just above the capacity of the heat pump)
2. 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.
3. Contact your installer
Solution
1.No action required
2.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.
Solution
1.Check the location of the heat pump and remove any
dirt that could be present on the evaporator
2.If the pool water is already quite hot (warmer than
29?),the probability of ice formation increases.
Lowering the set temperature is a possible option
3.Check the setting of the defrosting function together
with your installer.
4.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.
5.Have the heat pump checked by a refrigeration
technician.