Mitsubishi Heavy air conditioner error E3
Meaning
Outdoor unit power
General meaning for the brand's models, unless a model's own manual says otherwise.
Meaning
Interconnecting cable
General meaning for the brand's models, unless a model's own manual says otherwise.
Meaning
Outdoor unit address
General meaning for the brand's models, unless a model's own manual says otherwise.
Meaning
Outdoor circuit board
General meaning for the brand's models, unless a model's own manual says otherwise.
Meaning
Incorrect address
General meaning for the brand's models, unless a model's own manual says otherwise.
Meaning
Power supply
General meaning for the brand's models, unless a model's own manual says otherwise.
Meaning
No mains power at outdoor unit [power off or power failure]
General meaning for the brand's models, unless a model's own manual says otherwise.
Meaning
Incorrect address setting of the outdoor unit
General meaning for the brand's models, unless a model's own manual says otherwise.
How the unit shows it
- Receiver Unit Red LED: -
- Indoor Circuit Board Red LED: Flashes twice
- Indoor Circuit Board Green LED: Keeps Flashing
- Outdoor Circuit Board Red LED: Stays Off
Causes and how to check
- 2 possible causes
- the cited manual page, and follow-up questions
No account needed to look up codes.