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Heat Pump Pool Heaters

Zodiac HPT3216

Troubleshooting
Symptom Probable Cause Solution
Open-Circuit in evaporator temperature sensor. The evaporator temperature sensor is incorrectly plugged in or defective. Reset the heat pump from the breaker.

Call an authorized technician.
Open-Circuit in water temperature sensor.

Heat pump stopped.
The water temperature sensor is incorrectly plugged or defective. Reset the heat pump from the breaker.

Call an authorized technician.
Short circuit in evaporator
temperature sensor.

Heat pump stopped.
The evaporator temperature
sensor is incorrectly plugged in or
defective.
Reset the heat pump from the breaker.

Call an authorized technician.
Short circuit in water temperature sensor.

Heat pump stopped.
The water temperature sensor is incorrectly plugged or defective. Reset the heat pump from the breaker.

Call an authorized technician.
Low pressure detected in circuits.

Heat pump stopped.




Loss of refrigerant.


Defective captor or cable.


Defective fan.


Dirty evaporator.


Defrosting captor is defective.
Reset the heat pump from the breaker.

Call an authorized technician.

Call an authorized technician.

Call an authorized technician.

Clean the evaporator

Call an authorized technician.
High pressure detected in circuits.

Working resumption when the pressure becomes normal again.



Water flow either slow or blocked by an obstruction.

Defective captor or cable.
Reset the heat pump from the breaker.

Adjust the water flow.

Call an authorized technician
4 high pressures detected in circuits.

Heat pump stopped.
Water flow either slow or blocked by an obstruction.






Defective captor.
Adjust the water flow.

Clean pool filter.

Reset the heat pump from the breaker.

Call an authorized technician
Loss of memory in the control.

Resumption of default parameters.
Power failure.

Power output variation. The control accepts a voltage range between 20VAC and 30VAC.
Reset the heat pump from the breaker.The control is back to
factory settings, call an authorized
technician to recover personalized settings (not covered by Warranty).

Call an authorized technician if there are still problems.
Error of communication
between the control and the remote control.



Cables are incorrectly plugged in or defective.

Defective control or remote control.
Reset the heat pump from the breaker.

Check connections.

Call an authorized technician
For the hot-gas defrosting option. The defrosting operation has not finished in the predefined time.

Heat pump stopped. Unplug the heat pump and then plug it back in to restart the control. If the
problem persists, consider the following options.
Reversing valve blocked.

Defrosting captor is defective.

Compressor is inactive in
defrosting mode.
Reset the heat pump from the breaker.

Call an authorized technician.
No water flow when pump
operated by the control
(swimming pool pump control
option only).

Resumption of activities if water
flow is detected.



The valves of the heat pump are closed.

The pump is disconnected.


The pipes are obstructed

The water flow detector is
defective: the water circulates in the heat pump but is not detected
Reset the heat pump from the breaker.

Open the valves of the heat pump.

Connect back the heat pump.

Unblock the pipes.

Call an authorized technician.
Configuration of invalid option   Reset the heat pump from the
breaker.
Loss of power.

Disappear 10 sec.
Heat pump was disconnected.


There was a power failure.
Reset the heat pump from the breaker.

Wait.
Product

General Info
Features/specs
Troubleshooting
FAQ

Download (PDF)

Owners Manual
Warranty

Helpful Links

Sizing
Performance
Operation Cost
How does it work?
Pump Support Pad

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