Medium — Technician inspection recommended

AC won't turn on at all

If your AC is completely unresponsive — no display, no sound — it's usually a simple power issue. Check 4 things before assuming it's broken.

Symptoms That Indicate AC won't turn on at all

See if any of these signs match your device — each one increases the likelihood of this fault.

Technician checking the control board and power supply of an AC that will not start
Technician checking the control board and power supply of an AC that will not start

Technical Causes

These are the causes we encounter while repairing AC won't turn on at all — ranked from most to least common.

  1. 01

    AC's breaker has tripped

  2. 02

    Plug not properly seated (for plug-in units)

  3. 03

    Internal fuse blown in the indoor unit

  4. 04

    PCB transformer failed

  5. 05

    Main board (PCB) completely burned

  6. 06

    Loose connection in the inter-unit cable

When to Stop and Call a Technician Immediately

Any of the following = a danger signal — call now and don't try to fix it yourself.

Call now — 16062

This Fault Is Common In These Air Conditioners Types

Other Air Conditioners Faults

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