AQUA FORTE ZWPA Serie Manuel D'installation Et D'utilisation page 29

5.3 Failure code table for plug-in type PCB single system (4 cables)
Wire controller
Protection/Failure
Inlet water temp. sensor failure
PP01/PP1
Outlet water temp. sensor failure
PP02/PP2
Coil 1 temp. sensor failure
PP03/PP3
Coil 2 temp. sensor failure
PP04/PP4
Ambient temp. sensor failure
PP05/PP5
Protection for excessive temp.
PP06/PP6 difference between water
inlet & outlet
Anti-freeze protection for cooling
PP07/PP7
Winter anti-freeze protection Ⅰ
PP07/PP7
Winter anti-freeze protection Ⅱ
PP07/PP7
Return gas temp. sensor failure
PP08/PP8
EE01/EE1 High pressure protection in system 1
High pressure protection in system 2
EE02/EE2
EE03/EE3 Water flow switch failure
Order of phases incorrect
EE04/EE4
Failure of over-big temp.
EE05/EE5
difference between water
inlet & outlet
EE06/EE6 Low pressure protection in system 1
Low pressure protection in system 2
EE07/EE7
No display
Defrosting
EE08/EE8
Communication failure
Check
1. Check the connection of inlet water
sensor.
2. Check if the sensor is broken.
1. Check the connection of outlet water
sensor.
2. Check if the sensor is broken.
1. Check the connection of coil 1
temperature sensor.
2. Check if the sensor is broken.
1. Check the connection of coil 2
temperature sensor
2. Check if the sensor is broken.
1. Check the connection of ambient
temperature sensor.
2. Check if the sensor is broken.
1. Check if there is any jam in the water circuit.
2. Check if the water flow volume is enough.
3. Check if the water pump has failed to work.
Refer to PP06.
No action required
No action required
1. Check the connection of Return gas temp.
2. Check if the sensor is broken.
1. Check if high pressure switch is
broken.
2. Check if there's jam in water circuit or
water flow n ot enough.
3. Check if refrigerant circuit jam.
1. Check if w iring connection of flow s w
itch is in pos ition.
2. Check if enough w ater flow.
3. Check if flow s w itch is broken.
4. Check if w ater pump failure.
Order of phases incorrect
1. Check if there is enough water flow
volume.
2. Check if inlet / outlet water temp. sensor
failure.
1. Check if high or low pressure switch is
broken.
2. Check if lack of refrigerant.
3. Ambient temp. and water inlet temp. is
too low.
Check the connection
Solution
1. Reconnect the sensor.
2. Replace the sensor.
1. Reconnect the sensor.
2. Replace the sensor.
1. Reconnect the sensor.
2. Replace the sensor.
1. Reconnect the sensor.
2. Replace the sensor.
1. Reconnect the sensor.
2. Replace the sensor.
1. Remove the jam.
2. Increase the water flow volume.
3. Repair or replace the water pump.
Refer to PP06.
1. Reconnect the sensor.
2. Replace the sensor.
1. Replace new pressure switch.
2. Adjust less water flow.
3. Send heat pump to dealer for
detailed check.
1. Reconnect the wiring.
2. Increase enough water flow.
3. Replace flow switch.
4. Repair or replace water pump.
Reconnect the phases in right order
1. Adjust bigger water flow.
2. Replace related sensor.
1. Replace new pressure switch.
2. Charge enough refrigerant.
3. Remove jam or adjust bigger
water flow.
Reconnect the
connection wire.