E28

Remote Controller Sensor Failure

Mitsubishi Electric · Mitsubishi FR-D700 Inverter

What does E28 mean?

The sensor within the remote controller has failed, leading to incorrect temperature or operational readings. This affects the indoor unit's ability to control room temperature accurately.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Inspect the remote controller's connection to the indoor unit for security and continuity.

Source: Mitsubishi FR-D700 Inverter
Open Manual (Page 3)