E45
Mitsubishi Heavy
Mitsubishi Heavy air conditioner error E45
Meaning
Inverter wiring
General meaning for the brand's models, unless a model's own manual says otherwise.
Meaning
Transmission error between inverter and outdoor unit PCB; loose connection of [CnI]
General meaning for the brand's models, unless a model's own manual says otherwise.
Meaning
Transmission error between inverter and outdoor unit PCB. Loose connection of [CnT]
General meaning for the brand's models, unless a model's own manual says otherwise.
How the unit shows it
- Display 3: Keeps Flashing
- Display 4: Flashes once
- Display 5: Keeps Flashing
- LED 1: Stays Off
Causes and how to check
- 2 possible causes
- 1 checks in order
- the cited manual page, and follow-up questions
No account needed to look up codes.
Guides
- Communication error between indoor and outdoor unit: what to check, in which order
Communication (transmission) error codes usually come from the connecting wire, the supply or a board. The checks from easy to hard.