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Timer Conflict

Timer Conflict – ON and OFF timers set to the same time

Mitsubishi Heavy Industries · Packaged Air Conditioners

What does Timer Conflict mean?

The air conditioner system cannot accept both the ON timer and OFF timer being programmed for the exact same time. This constraint prevents conflicting instructions for starting and stopping operation.

Common Causes

  • The user attempted to set the ON timer and OFF timer to the identical time.
  • Incorrect time adjustment during the timer setup procedure resulted in an overlap.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Review the current ON timer and OFF timer settings displayed on your remote control.

  2. 2

    Adjust the ON timer to a time that is distinct from the OFF timer.

  3. 3

    Alternatively, adjust the OFF timer to a time that is distinct from the ON timer.

  4. 4

    Confirm and save your updated timer settings to ensure they are properly applied.

Browse all codes in this manual (21)
Verified technical data. Last updated: April 2026

Related Faults

Abnormal Compressor NoiseCompressor Making Abnormal Sound or Vibrating — Indicates a serious internal issueAbnormal DisplayAbnormal Display on Electric Component Box/Control Panel — Indicates an electrical issueAbnormal Fan NoiseFan Making Abnormal Sound or Vibrating — Indicates an internal issue
Source: Mitsubishi Heavy Industries Packaged Air Conditioners
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