Air Conditioner
Walton
Updated Jul 21, 2026
Walton AC E3 Error — Indoor Fan Speed Fault & Fix
E3
Walton · Air ConditionerE3 on a Walton AC means the indoor fan motor is running at an incorrect speed or has stopp…
Quick answer
E3 on a Walton AC means the indoor fan motor is running at an incorrect speed or has stopped. The control board detects abnormal RPM or no feedback signal.
What E3 means
The indoor fan motor sends a speed-feedback signal (tachometric pulse) to the control board. When the board detects that the fan is not spinning, spinning too slowly, or not sending any feedback, it raises E3 and stops the compressor to prevent the evaporator from freezing.
On most Walton models, the indoor unit's LED blinks five times for E3.
Do not keep restarting. Running the compressor without proper indoor airflow will freeze the evaporator coil and can damage the compressor.
How to fix it
- Power off at the breaker.
- Open the indoor unit panel and visually inspect the blower wheel (cross-flow fan).
- Try spinning the wheel by hand. It should turn freely with minimal resistance. If it feels stiff, dust buildup or a seized motor bearing is the cause.
- Clean the blower wheel. Heavy dust accumulation on the blades creates drag and slows the fan. Remove the wheel if possible and wash it.
- Check the motor connector on the indoor PCB — reseat it firmly.
- Test the motor. If the wheel spins freely but the motor does not start, the motor has failed and needs replacement.
- Check the motor capacitor (non-inverter models only). A weak or blown capacitor prevents the motor from reaching full speed.
Prevention: Clean your Walton AC's filters every two weeks and get a professional deep clean at least once a year (Walton offers two free cleanings during the 2-year after-sales warranty).
What does the E3 code mean?
E3 indicates the indoor fan motor speed is abnormal — either too slow, stopped, or not providing a feedback signal to the control board.
Common causes
- Dust-clogged blower wheel (most common in Dhaka due to pollution)
- Seized fan motor bearings
- Loose motor connector on the indoor PCB
- Faulty motor capacitor (non-inverter models)
- Burned-out fan motor
- Indoor PCB fan-driver circuit failure
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How to fix the E3 error
Power off at the breaker
Do not run the compressor without proper airflow.
Inspect the blower wheel
Open the indoor unit and try spinning the fan by hand.
Clean the blower
Remove heavy dust buildup from the blades. Wash if possible.
Reseat the motor connector
Unplug and re-plug at the indoor PCB.
Test the motor
If the wheel is free but the motor does not start, replace the motor.
Check the capacitor
Non-inverter models — test the motor run capacitor with a multimeter.
Safety first: Always isolate power at the breaker before opening the indoor unit. The PCB carries mains voltage.
Part you may need: Indoor blower fan motor / motor run capacitor
Walton uses both DC brushless (inverter) and AC induction motors. Confirm your model type before ordering a replacement.
Frequently asked questions
Can dust really stop the fan?
Yes — in Dhaka and other polluted cities, the blower wheel accumulates dust rapidly. Regular cleaning prevents E3.
Does Walton warranty cover E3?
If the motor is defective within the warranty period, yes. Dust damage from lack of cleaning is typically not covered.
How do I get Walton AC serviced?
Call 1800-345-1234, visit waltonbd.com, or go to your nearest Walton Plaza for after-sales service.
✎ Written by
REZAUL Karim (Riad)
REZAUL Karim (Riad) is the founder of ErrFixHub and a hands-on electronics and home-appliance repair specialist with over 15 years of experience diagnosing and fixing air conditioners, washing machines, refrigerators, inverters and other household appliances. He built ErrFixHub to turn cryptic error codes into clear, step-by-step fixes anyone can follow — cross-checking every code against manufacturer documentation and real repair-bench experience.
