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This Panasonic AC error code list helps you decode what the timer lamp or display is telling you. On most Panasonic split and inverter models, a code starting with H points to a sensor, a fan motor or the link between the indoor and outdoor unit, while a code starting with F points to a protection in the outdoor section or the refrigerant circuit.
Older and newer series do not always agree, so read the table below as the usual picture and check it against the manual or Panasonic's service desk. Fixes that involve opening the units, boards, wiring or gas are for a trained technician only, so the steps here stay on the safe side.
Common causes
1Supply interruption or voltage swing
How to tellSeen soon after an outage, or when the room lights sag
What fixes itLeave the AC breaker down for a while, then start again
2Filters and coil choked with dust
How to tellLow airflow, wet or iced pipe, fan or freeze related code
What fixes itRinse the filters and give any ice time to melt
3Temperature sensor fault
How to tellH14, H23, H27 or H28 type code with early cut off or cooling that never settles
What fixes itTechnician tests and replaces the sensor
4Indoor to outdoor signal lost
How to tellH11 while the outdoor unit makes no sound at all
What fixes itMake sure the outdoor supply is live, then service for cables and boards
5Fan motor jammed or weak
How to tellH19 or H97 with a fan that hums or turns slowly
What fixes itTechnician inspects the motor and capacitor
6Compressor or outdoor protection
How to tellF93, F97, F98 or F99 after the compressor tries to start
What fixes itDo not keep restarting; authorised service
7Low refrigerant or a leak
How to tellF91 with weak cooling and a frosted narrow pipe
What fixes itLeak tracing and recharge by qualified staff only
How to fix it, step by step
Count the blinks or read the display
Some Panasonic models show the code on the indoor display, while others use the timer lamp that blinks in a pattern. Jot down what the lamp does and when the trouble began. If your remote has a self check option, the manual explains how to use it.
Give the AC a power rest
Stop it with the remote, put the AC breaker down and walk away for ten minutes. Then power up and run Cool. A one off code from a supply dip often fades after this.
Wash both mesh filters
Open the grille, draw out the filters and run them under the tap. Dry in shade and refit. A dusty filter is the commonest hidden reason for freeze and fan codes.
Clear anything blocking the airflow
Make sure curtains, furniture or a shelf are not in front of the indoor unit and that the outdoor unit has free space around it. Do not open the covers.
Let ice melt before trying again
Spot frost on the indoor unit? Run fan mode for an hour, mop up any water, then try Cool at a moderate setting. Frost that comes back fast suggests an airflow or gas fault.
Stop after two tries
A code that keeps returning is a genuine fault. Extra starts can hurt the compressor and push the repair bill up.
Call Panasonic authorised service
Give them your model name, the code and any noise or smell you noticed. Our AC not working page helps you describe the symptom, and the AC error codes hub covers how other displays work.
Panasonic AC error code list: H and F codes
| Code | Common meaning | Next step |
|---|---|---|
| H11 | Indoor and outdoor communication fault | Look at the outdoor supply, then service |
| H14 | Indoor air intake sensor fault | Service |
| H19 | Indoor fan motor lock | Check blockage, then service |
| H23 | Indoor coil sensor fault | Wash the filter first, then service |
| H27 | Outdoor air sensor fault | Service |
| H28 | Outdoor coil sensor fault | Service |
| H97 | Outdoor fan motor lock | Service |
| H99 | Indoor coil freeze protection | Clean filter, melt ice, then service |
| F91 | Refrigeration cycle fault, often low gas | Service |
| F93 | Compressor rotation failure | Service |
| F97 | Compressor overheating | Service |
| F98 | Total running current too high | Service |
| F99 | Outdoor power circuit overcurrent | Service |
Numbers such as H12, H15, H16, H30 or F95 also exist, older models may use short forms, and a panasonic inverter ac e8 error code or a panasonic ac oc error code is not in this table because its meaning is model specific. If your code is not here, do not guess; look it up in the model manual.
The H11 and F91 codes in plain words
H11 is the most common communication warning. The indoor unit sends a request and gets no usable reply, so it stops the compressor. It follows power cuts, loose connections and board faults.
F91 is the code most owners worry about. It says the refrigeration cycle is off, and on many models that means low refrigerant. The gas is sealed in, so the real question is where it escaped. Testing, repair and recharge are for qualified hands only.
The compressor side hums, the outdoor fan spins, yet the room stays warm and the lamp blinks the F91 pattern. An oily smear shows at a pipe joint outside. This fits a leak, so switch off and book service.
Panasonic inverter and cassette models
Searches such as panasonic inverter ac h11 error code and panasonic cassette ac ef error code show that people use the same list for all models. Inverter models carry the full set of compressor codes, and cassettes add drain and panel codes that a basic split does not have. Compare against your model number before you act.
Safety, warranty and cost
Never open the outdoor unit, touch a board, add gas yourself or bypass a sensor. Those steps are risky, can void the warranty and may hide the real fault.
The cost climbs from a sensor to a fan motor, then to a board, and is highest for a compressor or a leak repair. Model age and warranty decide who pays; whatever the case, have each part named in a written quote.
How to avoid repeat codes
Rinse the filters on a routine, fix a service visit ahead of summer and keep dust and cloth away from the outdoor coil. If voltage in your area swings, an electrician can check your supply. Also see AC compressor not working for what a compressor problem feels like.
Frequently asked questions
What does the F91 error code mean on a Panasonic AC?
F91 usually points to the refrigeration cycle, most often low refrigerant from a leak (also asked as panasonic inverter ac f91 error code). Never top it up yourself.
What is the H11 error code in a Panasonic inverter AC?
H11 usually means the two units have lost contact. Check that the outdoor feed is on and reset once. If it returns, service is needed.
What does the H14 code mean in Panasonic AC?
H14 commonly refers to the indoor air intake temperature sensor. A technician should test it, as the AC may cool poorly or cut off.
What is H19 on a Panasonic AC?
H19 usually means the indoor fan motor is locked or not turning properly. Check for blockage, then ask service to look at the motor.
What does H23 mean on a Panasonic AC?
H23 is commonly the indoor coil temperature sensor. Clean the filters first, and if the code stays, a technician replaces the sensor.
Can I clear a Panasonic AC error code by myself?
A short power rest is fine to try. When the code is back, resetting only delays the repair.