Haier air conditioners have a built-in control panel on the front of the device that features a small LCD screen to display settings, timers and the temperature. The display is also used to showcase error codes, including the E1 error code. This code could occur for many reasons and often requires no extra parts or repairs.
Identification
When you try to power on the Haier air conditioner, the model will beep and the error code E1 will flash momentarily and then appear on the screen. Unplugging the unit for 30 seconds and plugging it back in will reset the error code. If the code appears again, it is legit. The range of error codes goes from E1 to E9. Confusing E1 with E7 is common, so carefully read the code.
Significance
The E1 error code could mean multiple things. The most common fault with the air conditioner is a stuck button on the access panel. Gently push each button in and out to ensure none of them are stuck. The panel may have malfunctioned due to moisture. See that the air conditioner is properly installed, and then leave it off for a few hours so the moisture can dry up.
Temperature Sensor
If the two other solutions do not help clear the error, there may be a problem with your indoor temperature sensor. Get your manual and original receipt, and call the Haier Company at 1-877-337-3639 to give them your information. If your temperature sensor needs replacement, the company will most likely just replace your whole air conditioner under the warranty guarantee.
Remote Use
If the panel remains inoperable to control the buttons, you can just use the air conditioner remote to operate the air conditioner. The unit will still read the remote settings and allow you to operate it without a new panel or temperature sensor. The error code will still appear, but the air conditioner will function normally.
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