Panasonic air conditioner error codes

Panasonic air conditioner error codes

The self-diagnostics system of the air conditioners by Panasonic displays error codes on the display of the infrared remote control and on the wall-mounted remote control or sends a signal via blink codes. The list of error codes, their interpretation, and the troubleshooting methods for each error code are specified.

Panasonic f11 fault code

Panasonic f11 fault code

The F11 fault code signals a problem in the heating/cooling changeover valve. For example, the unit may be producing warm air only. If you have just purchased the AC, this is going to be a warranty case and you can have it fixed for free.

What is the cause?

  • When in the heating mode, the indoor pipe is cooler than 10 10°C
  • When in the cooling mode, the indoor pipe is warmer than 45°C

Why it happens

  • Loose or faulty connector
  • Sensor failure
  • Bad PCB in the outdoor unit
  • Bad four-way valve

Panasonic f91 error code

Panasonic f91 error code

F91 indicates a refrigeration issue. Most likely, there is a refrigerator leak or a problem with the 3-way electronic valve.

You can try switching these valves from switch to cool several times. Some users say that it helps at least for a little while. However, this won’t eliminate the problem itself.

It takes a bit of professional help to replace the valves and fix the problem. Not unlikely, more adjustments will be needed.

Also, it is possible to temporarily unblock these valves with the help of a strong magnet. This would require disassembling the outdoor unit. However, this cannot be an all-time solution, and the valves will need to be replaced sooner or later.

Panasonic f99 error code

Panasonic f99 error code

The F99 error code appears when there is an issue in the power transistor module or compressor. It stands for “outdoor direct current peak detection” and means that:

  • The outdoor PCB needs to be replaced;
  • The power transistor (IPM) that is part of the PCB meeds to be replaced;
  • The compressor needs to bereplaced.

The problem requires professional assistance and use of specific equipment. If you see the error on the display, please, address your local repair service provider.

Panasonic e04 fault code

Panasonic e04 fault code

The E04 error code occurs when there have been lots of fuser jams. Take off the fuser and check the separator claws and heat roller. Then put the fuser back in its place and reset the fuser using the F9-6 mode. Press and hold the Function key. While holding it, press the Original Size Ledger key, hold these down and press the 3 key. Now you are in the service mode. Press Stop. Press and hold the Function key and press Clear to exit the service mode.

Panasonic h00 error code

Panasonic h00 error code

H00 No problems found – normal work

The H00 fault code may indicate an issue with either the outdoor or indoor controller or both. Check the system by cutting off power for about five minutes. Turn it on again and see what happens next. If the issue persists, do the following:

  1. Turn on the unit.
  2. Press and hold the AUTO button for about 5 seconds until the unit beeps and operate it in the Forced Cooling Operation mode.
  3. Press and hold the CHECK button on the remote control unit for a second or two (until it beeps) to ensure that the signal reaches the main unit. The beep will signify that the data has been cleared.

Panasonic h11 error code

Panasonic h11 error code

H11 occurs due to improper connection between the indoor and outdoor units. Also, it can be caused by a PCB issue. This type of error appears when the system fails to monitor the exchange of data between the units or between their components and the PCBs.

This happens because:

  • The PCBs in the indoor and outdoor units have gone faulty.
  • The units are not wired properly, or the wiring is damaged.
  • There has been a power surge in the system.

Panasonic h12 error code

Panasonic h12 error code

Compatibility Issues

  • The H12 error code flashes at the startup moment and signals an interconnection between different types of outdoor and indoor units.

When it happens

  • Improper choice of unit models
  • Improper choice of indoor and/or outdoor unit PCBs
  • Faulty indoor and/or outdoor unit PCB
  • Improper wiring connection between the outdoor and indoor units causing a signal transmission error.
  • Damaged or disconnected wire 3, which interconnects the indoor and outdoor unit.

Service manual №1:  Download
Service manual №2:  Download