E2

Remote Controller Clock Function Error

Mitsubishi Electric · PUZ-HA30/36NHA4 Outdoor Unit

What does E2 mean?

The clock function of the remote controller cannot be operated normally. This indicates a defective remote controller.

Common Causes

  • Remote controller's internal clock function is experiencing errors.
  • Corrupted real-time clock data.
  • Failure of the clock's backup battery (if applicable).
  • Software issue within the remote controller.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Replace the remote controller.

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Verified technical data. Last updated: March 2026

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Source: Mitsubishi Electric PUZ-HA30/36NHA4 Outdoor Unit