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 an internal fault with the remote controller's real-time clock, affecting scheduling and time-dependent functions. While the unit may operate, time-based features will be unreliable or non-functional, impacting automated operations.

Complete Troubleshooting Guide

  1. 1

    Power down the unit and disconnect the faulty remote controller.

  2. 2

    Replace the defective remote controller with a new, compatible model.

  3. 3

    Reconfigure all necessary time-related settings, schedules, and addresses, on the new remote controller.