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TIMER light 2-time flash

TIMER light 2-time flash — Overheat of compressor

MHI · Air Conditioning

What does TIMER light 2-time flash mean?

The TIMER light flashes twice, indicating that the compressor has overheated. This is a safety mechanism to prevent damage to the unit.

Common Causes

  • Overload operation
  • Overcharge of refrigeration
  • Gas shortage
  • Defective discharge pipe sensor
  • Closed service valve
  • Defective outdoor unit boards

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Turn off the air conditioner immediately and allow it to cool down for several hours.

  2. 2

    Ensure the outdoor unit is free of obstructions, such as leaves or debris, that could block airflow and cause overheating.

  3. 3

    Clean the outdoor unit's coils and fins if they are dirty, as this can impede heat dissipation.

  4. 4

    Verify that the air filters in the indoor unit are clean to ensure proper airflow.

  5. 5

    If the compressor continues to overheat after these checks, contact your dealer for professional service.

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
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