
Heatseeker Nova+Inverter Heat Pump
Troubleshooting
MALFUNCTIONS ERROR REASONS SOLUTIONS
Low ambient temperature
protection PP08 Ambient temperature or water
inlet temperature is too low
Cooling pipe temperature too high
protection PP10 Check the system
High pressure failure EE01
1. Too much refrigerant
2. Ambient temperature or water
temperature is too high
3. Operating frequency is too high
4. Fan motor failure
5. High pressure valve failure
1. Discharge redundant refrigerant
2. Clean the air exchanger
3. Check and re-x the wiring
connection of high pressure
switch
4. Replace the new high pressure
switch
Low pressure failure EE02
1. Not enough refrigerant
2. Not enough water ow
3. Filter or capillary jammed
4. EEV failure
5. Fan motor failure
6. Low pressure switch failure
1. Check if there is any gas leakage,
re-ll the refrigerant
2. Clean the air exchanger
3. Replace the lter or capillary
4. Check and re-x the wiring
connection of low pressure
switch
5. Replace the low pressure switch
Water ow failure EE03 Low water ow, wrong ow
direction, or ow switch failure.
1. Check if the water ow is high
enough
2. Check if the water ow switch
was installed in correct direction
3. Check the wiring of water ow
switch
4. Replace the new water ow
switch
T2 Water temperature overheating
under heating mode EE04 Water ow low or no water
1. Check and repair the water
pump
2. Clean the water pipe system
3. Check the water ow switch
T6 Gas exhaust too high protection EE05
1. Defrosting is inadequate
2. Insucient gas
3. The throttling device is jammed
4. Low water ow
1. Manual defrosting
2. Add the gas
3. Change the throttling device
4. Check the water pump
Controller failure EE06 1. Wire connection faulty
2. Controller failure
1. Check or change the signal wire
2. Restart the power supply
3. Change the controller
Compressor current protection EE07 The compressor current is too large
instantaneously