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Daikin Heat Pump Error Codes
Daikin Heat Pump Error Codes

Daikin Heat Pump Error Codes

If you're looking for help fixing your Daikin Heat Pump, look no further! Our comprehensive Daikin Heat Pump error code guide will explain common issues, provide tips, and show you how to read your model's error codes.


Daikin is a well-known manufacturer of heat pumps and air conditioning systems. While specific error codes may vary depending on the model and series of your Daikin heat pump, I can provide you with a list of some common Daikin heat pump error codes and their potential meanings:

A1: Indoor PCB malfunction

Possible causes: Faulty indoor PCB (Printed Circuit Board), loose connections, damaged wiring.

A3: Indoor fan motor malfunction

Possible causes: Defective indoor fan motor, faulty fan motor capacitor, wiring issues.

A5: Freeze-up prevention

Possible causes: Freezing of the outdoor unit due to low ambient temperature or issues with the outdoor unit.

A6: Fan motor malfunction

Possible causes: Defective outdoor fan motor, faulty fan motor capacitor, wiring problems.

H3: Compressor discharge temperature protection

Possible causes: High discharge temperature, excessive refrigerant pressure, faulty compressor.

H4: Outdoor coil temperature sensor malfunction

Possible causes: Faulty outdoor coil temperature sensor, loose connections, damaged wiring.

E0: Failure of indoor unit communication

Possible causes: Communication error between the indoor and outdoor units, faulty communication wiring, loose connections.

E3: High-pressure switch activated

Possible causes: High refrigerant pressure, clogged or restricted airflow, issues with the outdoor unit.

Please note that this is not an exhaustive list, and the error codes and their meanings can vary depending on the specific model and series of your Daikin heat pump. Consult the user manual or contact Daikin customer support or a professional technician for the most accurate diagnosis and assistance with resolving the specific error code on your unit.



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Product Reviews:

I received this gadget from Amazon 13 month ago and my heart has been swell
I received this gadget from Amazon 13 month ago and my heart has been swelling with pride every time I step into the house. Silent air-conditioning and a massive 18,000 BTU power was more that I had bargained for. No disturbance in my sleep as I can simply program the device, thanks to its wireless LCD remote control. Daikin should know they have one satisfied customer.
Published: January 29, 2022
Topeka, KS
Source: pickhvac.com

The Daikin 12,000 BTU 24.5 Seer heat pump carries out its duties diligently
The Daikin 12,000 BTU 24.5 Seer heat pump carries out its duties diligently and silently but I have a problem with the much-touted energy saving feature it is supposed to have. My power bills have shot through the stratosphere since I started using it 10 months ago. I would love to know if anything can be done about its power consumption so that I wouldn’t have to worry about energy costs. Generally, it is a nice gadget.
Published: March 29, 2022
Little Rock, AR
Source: pickhvac.com

Last summer, I realized that my old heat pump was no longer up to the task
Last summer, I realized that my old heat pump was no longer up to the task and quickly went out to get a new device. A friend had pointed me in the direction of Daikin and had promised I would never regret the decision. Well, I haven’t. 5 months down the line and the machine doesn’t show any signs of fatigue. It is a true reflection of Japanese technology, famed to be among the best in the world.
Published: November 30, -0001
Washington, DC
Source: pickhvac.com

My heater obsoleted over a year ago, prompting another visit to Daikin. The
My heater obsoleted over a year ago, prompting another visit to Daikin. The replacement wasn’t long in coming and I was able to continue with my life as usual. Though this is not your normal air conditioner as it is designed to save lots of energy, pushing down your energy bills, you will love its efficiency. The machine senses the inactivity in the house and automatically shifts to standby mode, further saving on electricity bills. I have been using it for the last 15 months.
Published: April 29, 2022
Hartford, CT
Source: pickhvac.com

I wouldn’t mind the hum of the powerful Daikin 24,000 BTU AC so long as i
I wouldn’t mind the hum of the powerful Daikin 24,000 BTU AC so long as it does its job well. I don’t see any sense in going for a quiet but hopelessly ineffective device. The slight vibrations are great for soothing me into a deep slumber! I think Daikin made a big balance between power and noise levels – huge power means you have to sacrifice certain niceties like a quiet device. At less than $3,000, it is the best bargain one can ever out there. I have been using it since 18 months ago, and so far, nothing to complain about.
Published: May 29, 2022
Washington, DC
Source: pickhvac.com

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