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What is Daikin U1 Error Code?
According to the manufacturer's air conditioner error code table, the U1 error code on Daikin air conditioners is caused by phase reversal, phase loss due to reverse phase power supply, phase loss, or faulty outdoor unit circuit board.
According to the manufacturer, the U1 error code often appears on various Daikin Inverter air conditioner models. When encountering this error code, the air conditioner will not operate properly.
Causes of Daikin U1 Error Code
Main Causes of U1 Error Code on Daikin Air Conditioners:
+ Power supply to the air conditioner experiencing phase loss or reverse phase.
+ Faulty outdoor unit circuit board.
Each cause of the U1 error code on Daikin air conditioners requires specific troubleshooting methods. Let's proceed to the next section to learn the most accurate way to resolve the U1 error code on Daikin air conditioners.
How to Fix U1 Error Code on Daikin Air Conditioners
To troubleshoot and fix the U1 error code on Daikin air conditioners, users can follow these steps sequentially:
+ Firstly, check if the power supply to your Daikin air conditioner is correctly connected, whether it operates on single-phase or three-phase electricity. If your Daikin Inverter air conditioner operates on single-phase electricity, you can change the phase by swapping the two conductors. Among them, there are 2 wires including 1 cold wire and 1 hot wire with a voltage difference of 220V between the two wires, just interchange the positions of the two wires.
+ If the above troubleshooting method proves ineffective, continue using an electric meter to check if your Daikin air conditioner is experiencing phase loss. If so, reconnect it correctly.
+ In case both of the above troubleshooting methods fail, it's likely due to a faulty outdoor unit circuit board. For this reason, avoid attempting to repair it unless you have expertise in air conditioning. Given that a faulty outdoor unit circuit board is a severe issue, it's best to contact the Daikin service center or a professional air conditioning technician for assistance.
Notes when fixing U1 error code on Daikin air conditioners
During the process of troubleshooting and fixing the U1 error code on Daikin air conditioners, pay attention to the following issues to ensure safety:
+ Disconnect the power supply to the air conditioner 30 minutes prior to ensure electrical safety and avoid any unwanted incidents.
+ If you lack the necessary tools and technical expertise, it's advisable to contact the Daikin service center or a professional air conditioning technician for the best support.
+ In cases where replacement of parts or components is necessary, it's essential to use genuine products to ensure quality and compatibility for optimal operation of the unit.
Here is the information about the U1 error code on Daikin air conditioners that we have compiled. We hope it will help you quickly and successfully resolve the U1 error code on your Daikin air conditioner!
