Panasonic Error Codes
Is your Panasonic air conditioner displaying an error code? This page lists all common Panasonic air conditioner error codes with plain-English explanations and recommended actions. If you’re unsure what to do or the fault persists, Paragon Air’s Sydney technicians are available for same-day diagnosis and repair — call 1300 507 892.
Common Panasonic Air Conditioner Error Codes
| Error Code | Meaning | Recommended Action |
|---|---|---|
| H00 | Normal operation / no fault | No action required |
| H11 | Indoor/outdoor unit communication error | Check wiring between indoor and outdoor units. If fault persists, call a technician |
| H12 | Capacity selection error (mismatch between indoor/outdoor) | Verify unit compatibility. Requires technician inspection |
| H14 | Indoor inlet thermistor fault | Thermistor may need replacement. Call for service |
| H15 | Compressor thermistor fault | Outdoor unit fault. Requires technician inspection |
| H16 | Outdoor current transformer fault | Electrical fault — do not attempt repair. Call a licensed technician |
| H19 | Indoor fan motor fault | Fan motor may be blocked or faulty. Check for obstructions, then call for service |
| H20 | Outdoor fan motor fault | Check outdoor unit for debris. If clear, call a technician |
| H23 | Indoor heat exchanger thermistor fault | Sensor fault — requires replacement by a technician |
| H27 | Outdoor air thermistor fault | Outdoor sensor fault. Requires technician inspection |
| H28 | Outdoor heat exchanger thermistor fault | Sensor replacement required |
| H30 | Discharge thermistor fault | Requires technician inspection |
| H32 | Outdoor heat exchanger temp abnormality | Check airflow around outdoor unit. Clear any blockages |
| H33 | Reverse phase / open phase detected | Electrical supply issue — call a licensed electrician |
| H34 | Outdoor heat exchanger temp control fault | Call for service |
| H36 | Liquid thermistor fault | Sensor fault — technician required |
| H38 | Indoor/outdoor capacity mismatch | Requires professional diagnosis |
| H42 | Compressor protection — overheating | Check outdoor unit airflow. Allow to cool, then restart. If persists, call for service |
| H97 | Outdoor fan motor protection | Check for obstructions around outdoor unit fan |
| H98 | Indoor unit high temp protection | Clean filters and check indoor airflow. Call if persists |
| H99 | Refrigerant shortage / pressure protection | Likely low refrigerant. Do not operate — call a licensed technician immediately |
| F11 | 4-way valve switching fault | Requires technician inspection |
| F90 | Power module protection activation | Electrical fault — call a licensed technician |
| F91 | Refrigerant circuit fault | Possible refrigerant leak. Do not operate — call immediately |
| F93 | Compressor startup fault | Compressor issue — requires technician inspection |
| F95 | High-pressure protection activated | Check outdoor airflow, clean filters. If persists, call for service |
| F96 | Inverter fin temperature protection | Outdoor airflow blockage likely. Clear area around unit |
| F97 | Compressor overheating protection | Check outdoor airflow, allow to cool. Call if persists |
| F98 | High current protection | Electrical fault — call a licensed technician |
| F99 | Output current protection | Electrical fault — call a licensed technician |
Panasonic error code not listed? Still not cooling?
Our ARC-certified technicians diagnose and repair all Panasonic air conditioning models across Sydney. Same-day service available.
How to reset your Panasonic air conditioner
Many error codes will clear automatically once the fault is resolved. For a manual reset: turn the unit off at the remote, switch off the power at the isolator or circuit breaker, wait 5 minutes, then power back on. If the error code returns, the underlying fault is still present and needs professional attention.
When to call a technician
Any error code involving refrigerant (F91, F95, H99), electrical faults (H16, H33, F90, F98), or compressor issues (F93, F97) should be treated as urgent — continuing to run the unit can cause further damage. Paragon Air provides air conditioning repairs across Sydney with same-day availability.
About Panasonic air conditioners
Panasonic is a well-established air conditioning brand in Australia, known for its energy-efficient inverter technology and quiet operation. Common models in Sydney homes include the Panasonic CS series split systems and Panasonic ducted systems. Paragon Air services all Panasonic models — contact our Sydney team for repairs, servicing or installation.
