Panasonic Aquarea Heat Pump Error Codes

Complete diagnostic guide for Panasonic Aquarea heat pumps in the United Kingdom.

Temperature and Freezing Problems

Error codes for Panasonic Aquarea heat pumps related to temperature problems and freezing.

Error Code	Meaning	Possible Causes	Solutions
E004	Freezing: Water temperature in heat pump below 5°C	Water temperature in heat pump too low Ambient temperature too cold Problems with heat dissipation Insufficient flow Blocked heat exchanger	Check water temperature Check ambient temperature Check heat dissipation on hot water side Increase flow rate in system Check heat exchanger for blockages Contact customer service
E005	Overheating: Temperature above 75°C, electronic controller failure	Temperature above 75°C Electronic controller failed Insufficient flow Blocked heat exchanger Problems with cooling	IMMEDIATELY: Disconnect heat pump from power supply Allow system to cool down Check and increase flow rate Check heat exchanger for blockages Check cooling system Contact customer service

Sensor and Probe Errors

Error codes for Panasonic Aquarea heat pumps related to sensor and probe problems.

Error Code	Meaning	Possible Causes	Solutions
E007	Error: Volume or temperature probe	Volume probe defective Temperature probe defective Sensor not properly connected Cable connection interrupted Sensor damaged	Check volume and temperature probes for function Check wiring for proper connection Test sensor with multimeter Replace sensor if defective Contact customer service
E361	Error: Outdoor air probe	Outdoor air probe defective Sensor not properly connected Cable connection interrupted Sensor damaged	Check outdoor air probe for function Check wiring Test sensor with multimeter Replace sensor if defective Automatic operation of electric heater active Contact customer service
E363	Error: Defrost probe	Defrost probe defective Sensor not properly connected Cable connection interrupted Sensor damaged	Check defrost probe for function Check wiring Test sensor with multimeter Replace sensor if defective Automatic operation of electric heater active Contact customer service

Flow and Water Problems

Error codes for Panasonic Aquarea heat pumps related to flow, water and filter problems.

Error Code	Meaning	Possible Causes	Solutions
H62	Error due to insufficient water or contaminated filter in system	Too little water in system Contaminated filter Low water pressure Blocked filter Water loss due to leakage	Check water pressure in system Check filter for contamination and clean Replace filter if necessary Check system for leaks Refill water if necessary Reset error

System and Function Errors

Error codes for Panasonic Aquarea heat pumps related to system errors and function problems.

Error Code	Meaning	Possible Causes	Solutions
E006	Error: Magnesium anode	Magnesium anode defective Anode worn out Problems with anode	Check magnesium anode Replace anode if necessary Heat pump continues to function normally Contact customer service
E042	Error: Anti-legionella function	Problems with anti-legionella function Configuration error Temperature error	Reset error by pressing the corresponding button Check anti-legionella function Contact customer service if problem persists
E247	Error: Defrost function	Problems with defrost function Defrost blocked Temperature problems	Automatic activation of electric heater Check defrost function Normal operation after error resolution Contact customer service if problem persists

Refrigerant Circuit and Pressure Errors

Error codes for Panasonic Aquarea heat pumps related to refrigerant circuit and pressure problems.

Error Code	Meaning	Possible Causes	Solutions
F12	High pressure fault in refrigerant circuit or compressor outlet temperature too high	High pressure fault in refrigerant circuit Compressor outlet temperature too high Problems with heat dissipation Blocked refrigerant circuit Insufficient cooling	Check heat dissipation on hot water side Check refrigerant circuit for blockages Monitor compressor outlet temperature Check cooling system Consult qualified service if necessary Contact customer service

Need More Help?

If you are experiencing problems with your Panasonic Aquarea heat pump that are not covered by these error codes, or if the provided solutions do not resolve your issue, we recommend:

Consult your Panasonic Aquarea heat pump user manual for model-specific information
Visit the official Panasonic support page: panasonic.com/uk/support.html
Contact Panasonic customer service in the United Kingdom for technical support
Seek help from a qualified heat pump repair technician
Check warranty coverage if your heat pump is still under warranty

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