Voltas AC Error E5
Diagnostic Protocol & Repair Guide
Technician Note
Always isolate power before inspecting high-voltage components.
Voltas Error E5
Indoor Fan Motor Failure.
The “Lungs” of your AC have stopped breathing.
Symptom
Fan Not Spinning
Suspect #1
Fan Capacitor
Suspect #2
PCB / Motor
Decoding the “Dead Air” Issue
The E5 Error targets the indoor blower unit. The AC’s brain (PCB) expects speed feedback from the fan motor. If the fan is spinning too slowly, not spinning at all, or spinning without sending a signal back, E5 is triggered.
Why it matters: Without the fan, the cold air stays trapped inside the AC unit. This causes the internal coils to turn into a block of ice within minutes. The system shuts down to prevent this.
1 Basic Checks (Do This First)
Listen for “Humming”
Turn the AC on. Do you hear a low humming sound from the indoor unit but no air comes out? This usually means the motor is trying to start but can’t (Capacitor failure).
The “Pen Test” (Careful!)
With the AC OFF and flap open, gently push the blower roller with a pen. Does it spin freely? If it feels stiff or jammed, the motor bearings are seized.
Physical Blockage
Sometimes, a piece of paper, plastic, or a rat can physically jam the blower wheel.
Atlas Aircon Repair Protocol
Our technicians troubleshoot E5 in this order:
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01.
Capacitor Check (Most Likely) The 1.5uF or 2uF capacitor on the PCB often gets weak. Replacing this cheap part usually fixes the fan.
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02.
Motor Winding Test We check resistance on the motor wires. Open windings mean the motor is burnt and needs replacement.
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03.
PCB Feedback Circuit If the motor is new but E5 persists, the PCB’s “Hall Sensor” circuit isn’t reading the speed. PCB repair required.
Estimated Repair Cost (Atlas Aircon)