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Resistance of indoor fan motor is 1MΩ or more

Indoor fan motor resistance 1MΩ+ — Indoor fan motor or fuse issue

Mitsubishi Electric · Air Conditioning

What does Resistance of indoor fan motor is 1MΩ or more mean?

The resistance measurement of the indoor fan motor is very high (1MΩ or more), indicating an open circuit. This could be the motor itself or the fuse.

Common Causes

  • Indoor fan motor open circuit
  • Faulty fuse (F11) causing high resistance reading
  • Wiring issue to the fan motor

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Turn off the power supply.

  2. 2

    Replace the fuse (F11).

  3. 3

    Replace the indoor fan motor.

  4. 4

    Check the wiring harness for any breaks or poor connections to the fan motor.

Browse all codes in this manual (170)
Verified technical data. Last updated: April 2026

Related Faults

0.5-second ON / 0.5-second OFF blinkUpper lamp blinks 0.5-second ON/OFF - Miswiring or serial signal error00Normal operation - No error codes1 beep during error display mode1 beep during error display mode - Unit has an error (different code)
Source: Mitsubishi Electric Air Conditioning
Open Manual (Page 26)Search more codes in this manual