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ErrorLib — Industrial Fault Code Library

Disclaimer: ErrorLib is an independent technical reference tool. While we aim for accuracy, always verify with the manufacturer’s official service manuals before performing maintenance on industrial equipment. ErrorLib is not affiliated with the brands listed.

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.

Browse all codes in this manual (45)
Verified technical data. Last updated: April 2026

Related Faults

01Overvoltage Error02Undervoltage Error04L1 or L2-Phase Open Error
Source: Mitsubishi Electric PUZ-HA30/36NHA4 Outdoor Unit
Open Manual (Page 29)Search more codes in this manual