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switch not activate

A switch does not activate properly — Electrical component fault, contact dealer

MHI · Air Conditioning

What does switch not activate mean?

If any switch on the air conditioner or its remote control (other than the power switch which blows fuses) fails to activate properly, it could indicate a faulty component.

Common Causes

  • Malfunctioning internal switch or contact.
  • Remote control or unit button damage.
  • Internal wiring issue.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Attempt to use the switch multiple times with a firm but gentle press.

  2. 2

    If it's a remote control button, try replacing the batteries or resetting the remote.

  3. 3

    If the issue persists, turn off the power and contact your dealer.

Browse all codes in this manual (124)
Verified technical data. Last updated: April 2026

Related Faults

00Outdoor Board LED only green lights up after startup - No outdoor unit of address 0 / Remote controller transmission wire open1OPERATION INDICATOR lamp blinks 1 time (Pattern A) - Indoor/outdoor unit communication error (Transmitting error - Outdoor unit)14OPERATION INDICATOR lamp blinks 14 times (Pattern A) - Other errors
Source: MHI Air Conditioning
Open Manual (Page 37)Search more codes in this manual