How to Fix E4 Error in Midea Air Conditioner?

  • Error: E4
  • Description: Error of the indoor heat exchanger outlet temperature sensor.
  • Possible Causes: Temperature sensor not properly connected or malfunctioning, damaged main PCB.
  • Solution: Check the temperature sensor connection and measure its resistance. If the resistance is too low, the sensor has short-circuited.

The E4 error in Midea air conditioner indicates a problem with the indoor heat exchanger outlet temperature sensor. This can be caused by the sensor not being properly connected or having failed, or by a damaged main PCB.

Steps to Fix E4 Error in Midea Air Conditioner

To resolve this issue, follow the procedure below:

  1. Turn off the air conditioner and disconnect it from the power source.
  2. Locate the connection port of the indoor heat exchanger outlet temperature sensor on the main PCB of the indoor unit.
  3. Check the connection of the temperature sensor to ensure it is properly connected.
  4. Measure the resistance of the temperature sensor using a multimeter. If the resistance is too low, the sensor has short-circuited and needs to be replaced.
  5. If the connection and resistance of the temperature sensor are correct, it is possible that the main PCB is damaged and needs to be replaced with a new one.

It is important to note that this procedure should be performed by a trained technician with experience in air conditioner repairs, as working with electrical components can be dangerous without proper knowledge and expertise.

Other error codes in Midea air conditioner

How to Fix E3 Error in Midea Air Conditioner?

How to Fix E3 Error in Midea Air Conditioner?

Error: E3 Description: Error of the indoor heat exchanger midpoint temperature sensor. Possible Causes: Temperature sensor not properly connected or malfunctioning, damaged main PCB. Solution: Check the temperature sensor connection ...
How to Fix E2 Error in Midea Air Conditioner?

How to Fix E2 Error in Midea Air Conditioner?

Error: E2 Description: Error of the indoor ambient temperature sensor. Cause: Temperature sensor not properly connected or malfunctioning, damaged main PCB. Solution: Electronic or TV technician to inspect the electronic ...
Troubleshoot error code "16" in Hisense air-conditioning

Troubleshoot error code “16” in Hisense air-conditioning

What to do when the error appears: Overload protection error ...

Leave a Comment