Indoor fan speed out of control
What it means
On Midea split units, E3 commonly means the indoor fan speed is abnormal or its speed signal is not reaching the board. The meaning can vary by model, so check the manual for your unit.
Symptoms3
- Weak or intermittent airflow.
- The indoor fan stops or turns slowly.
- Unusual noise from the indoor unit.
Possible causes4
- Dirty blower wheel or an obstruction.
- Failed indoor fan motor.
- Motor plug not seated.
- Indoor control board fault.
How to diagnose and fix3
- With power off, check that the blower turns freely.
- Clean the filters and have the indoor unit washed.
- Have a technician test the motor and board.
Repair cost
In Saudi riyals; the highlighted part is the expected range for this fault.
Cleaning is cheap; a motor or board costs more.
Prices are rough estimates including the part and the technician’s fee, and vary with brand, model and part source.
Frequently asked questions
Should I keep using the AC?
Not recommended; poor airflow can freeze the indoor coil and cause water leaks.
How often should filters be cleaned?
In dusty conditions, roughly every two weeks during the cooling season.
This guide is for information only and does not replace an inspection by a qualified technician. If the fault involves brakes, steering, engine temperature, electrics or refrigerant, do not attempt the repair yourself.
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