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Common Panasonic Aircon Unit Error Codes

Just like any other aircon unit brand, the aircon issues of Panasonic aircon units running into performance issues is no longer a surprise. For the most part, these aircon issues are likely to go away after doing a couple of quick troubleshooting steps. There’s turning the unit on and off, unplugging it from the socket, or just simply letting it rest for an hour or two.

But for aircon issues that are hard to figure out, you will have to check the error code to help you zero in on a specific cause and repair. Each error code has a meaning, which will allow users to understand what the aircon issue is and thereby what needs to be done to fix it.

What are error codes?

All aircon unit systems come pre-programmed with a list of error codes that display on the control panel when the unit is running a fault.

The typical error codes can display for a variety of reasons including communication faults between the outdoor and indoor units (usually due to burnt out or faulty PCB), blocked filters, or low refrigeration gas charge.

How to check for Panasonic Aircon Unit Error Codes?

1) Using the remote control, press and hold the check button for 5 seconds

2) Press and hold the timer button

3) Press the screen button to display the error code and power indicator light

4) Once the power and aircon lights start beeping, the error code will start to appear on the display

5) To turn off the error code query mode, simply hold down the check button for 5 seconds

Panasonic Aircon Error Codes: The Complete List

Code - Possible Cause00H - No detected abnormalities11H - The error of data line between indoor unit and outdoor unit12H - Other power error between outdoor unit and indoor unit14H - Room temperature sensor error15H - Compressor temperature sensor error16H - The compressor load current is too low19H - Internal fan block error23H - Chiller temperature sensor error25H - Error e-ion circuit27H - Outdoor temperature sensor error28H - Hot rig temperature sensor error30H - Compressor output temperature sensor error33H - Error connecting internal and external blocks38H - Internal and external block error is not synchronized58H - PATROL circuit error59H - ECO PATROL circuit error97H - Error on the outdoor unit fan98H - Indoor temperature is too high (heating mode)99H - Chilled temperature is too low (freeze)11F - Cooling mode / Heating switch error90F - Bost booster circuit fault for the compressor power block91F - Compressor load line error is too low93F - Compressor rotation speed error95F - Hot platform temperature is too high96F - Compressor power transistor overheats (IPM)97F - Compressor temperature is too high98F - Compressor load is too high99F - The DC output to the compressor is too high

What should I do when an error code pops up?

There are two main things you can do when you see the error code:

1) Reset the aircon unit to check that the error message itself is not an error. Try this only if you are confident in electrical equipment around the home. This process will delete the aircon unit on board memory, giving it a restart.

Certain faults can be caused by the weather, lightning strikes, blackouts, and brownouts, or power fluctuations. These may be the reason for your aircon unit shutting down for safety reasons.

While not always successful, it’s worth a try rather than spending money on a professional aircon servicing company

How to do it: Separate your aircon unit from its power supply. Unplug it from a powerpoint, turn off the isolator next to the outdoor unit, or shut down your house’s power from the electrical board.

Leave for 15 – 30 minutes.

During this time the onboard memory will be deleted. Turn the power back on and restart your aircon unit. If the fault requires a professional aircon servicing company’s attention, then the error code will reappear.

2) Call a professional aircon servicing company.

If troubleshooting does not work, it is recommended to get a professional aircon servicing company in to have a look. It’s safer plus you don’t want to cause any further damage to your aircon unit, leaving you with a hefty repair bill.

They will not only recommend someone to assist you, but they can also conveniently lock in an appointment with every type of aircon servicing that you need. 


It’s always a good time to talk about the common issues that aircon units have. This way, you’ll be able to spot if there are problems with your unit or not and prepare for its replacement accordingly. If you require our aircon servicing services, WhatsApp us at +65 88554141 for a fast and transparent quote.

338 Aircon Servicing Singapore provides an extensive range of Aircon Services including Aircon Servicing, Aircon Repairs, Aircon Installation of the best aircon brands, Chemical Overhaul, Gas Top-up, Aircon Leaking Water, and Aircon Not Cold Fix, and more. We have a team of professional technicians who are equipped with vast knowledge and experience in the Aircon industry. 

We have over 15 years of experience in dealing with aircon works and have completed thousands of aircon works for both residential (Landed, Condo, and HDB) and commercial. We are a highly recommended Aircon Company in Singapore, with many delighted customers and reviews over the years on Google and Facebook.

WhatsApp us at +65 88554141 for a transparent quotation and honest pricing for all your aircon needs or Call us at +65 8855 4141. We offer a fast and efficient service to serve any of your aircon needs! 

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