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

CodePossible Cause
00HNo detected abnormalities
11HThe error of data line between indoor unit and outdoor unit
12HOther power error between outdoor unit and indoor unit
14HRoom temperature sensor error
15HCompressor temperature sensor error
16HThe compressor load current is too low
19HInternal fan block error
23HChiller temperature sensor error
25HError e-ion circuit
27HOutdoor temperature sensor error
28HHot rig temperature sensor error
30HCompressor output temperature sensor error
33HError connecting internal and external blocks
38HInternal and external block error is not synchronized
58HPATROL circuit error
59HECO PATROL circuit error
97HError on the outdoor unit fan
98HIndoor temperature is too high (heating mode)
99HChilled temperature is too low (freeze)
11FCooling mode / Heating switch error
90FBost booster circuit fault for the compressor power block
91FCompressor load line error is too low
93FCompressor rotation speed error
95FHot platform temperature is too high
96FCompressor power transistor overheats (IPM)
97FCompressor temperature is too high
98FCompressor load is too high
99FThe 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 9222 4141 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 9222 4141 for a transparent quotation and honest pricing for all your aircon needs or Call us at +65 9222 4141. We offer a fast and efficient service to serve any of your aircon needs!