All Panasonic Air Conditioner error codes

54 codes From brand’s official support

All Panasonic Air Conditioner error codes

Filter codes on this page…

Code	Meaning	Action
H00	No error stored	Not a fault
H11	Communication error (indoor ↔ outdoor unit)	Needs a technician
H12	Indoor/outdoor mismatch or wrong wiring	Needs a technician
H14	Indoor room temperature sensor fault	Needs a technician
H15	Compressor temperature sensor fault	Needs a technician
H16	Current sensor (CT) fault	Needs a technician
H17	Suction pipe temperature sensor fault	Needs a technician
H19	Indoor fan motor fault	Needs a technician
H21	Drain / water overflow protection	You can usually fix it
H23	Indoor coil (evaporator) temperature sensor fault	Needs a technician
H24	Indoor coil outlet temperature sensor fault	Needs a technician
H25	Air purifier (nanoe / ion) unit fault	Needs a technician
H26	Air purifier (nanoe / ion) unit fault	Needs a technician
H27	Outdoor air temperature sensor fault	Needs a technician
H28	Outdoor coil (condenser) temperature sensor fault	Needs a technician
H30	Compressor discharge temperature sensor fault	Needs a technician
H31	Pool water temperature sensor fault	Needs a technician
H32	Second outdoor coil temperature sensor fault	Needs a technician
H33	Indoor/outdoor mismatch or wrong wiring	Needs a technician
H34	Inverter heat-sink temperature sensor fault	Needs a technician
H35	Water backflow fault	Needs a technician
H36	Outdoor gas-pipe temperature sensor fault	Needs a technician
H37	Outdoor liquid-pipe temperature sensor fault	Needs a technician
H38	Indoor/outdoor mismatch or wrong wiring	Needs a technician
H39	Indoor/outdoor mismatch or wrong wiring	Needs a technician
H41	Indoor/outdoor mismatch or wrong wiring	Needs a technician
H50H51	Ventilation fan motor fault	Needs a technician
H52	Louver (air flap) motor / switch fault	Needs a technician
H58	Indoor refrigerant leak (gas) sensor fault	Needs a technician
H59	Eco (motion / presence) sensor fault	Needs a technician
H64	Outdoor high-pressure sensor fault	Needs a technician
H67	Air purifier (nanoe / ion) unit fault	Needs a technician
H70	Light sensor fault	Needs a technician
H71	Control board (PCB) fault	Needs a technician
H72	Water tank temperature sensor fault	Needs a technician
H79	Wi-Fi module fault	You can usually fix it
H85	Wi-Fi module fault	You can usually fix it
H97	Outdoor fan motor fault	Needs a technician
H98	High pressure / overload protection	Needs a technician
H99	Indoor coil anti-freeze protection	You can usually fix it
F11	4-way (reversing) valve fault	Needs a technician
F16	Overcurrent / compressor overload	Needs a technician
F17	Indoor coil anti-freeze protection	You can usually fix it
F18	Low gas / refrigerant leak or blockage	Needs a technician
F87	Inverter board / power module protection	Needs a technician
F90	Inverter board / power module protection	Needs a technician
F91	Low gas / refrigerant leak or blockage	Needs a technician
F93	Compressor start / rotation fault	Needs a technician
F94	High pressure / overload protection	Needs a technician
F95	High pressure / overload protection	Needs a technician
F96	Inverter board / power module protection	Needs a technician
F97	Compressor overheating	Needs a technician
F98	Overcurrent / compressor overload	Needs a technician
F99	Inverter board / power module protection	Needs a technician

How to see the error code

Most split ACs show the code on the indoor unit display (e.g. E6, CH05). Some models only blink a light — count the blinks, or press the remote’s check/diagnosis button if your manual mentions one.

How to reset

Switch the AC off with the remote
Turn off the AC’s MCB or wall switch and wait 5–10 minutes
Switch on again and start in cooling mode at 24–26 °C

Sources

We write every explanation in our own words from these references.

Last checked: 2026-10-20

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