E49
Mitsubishi Heavy
Mitsubishi Heavy air conditioner error E49
Meaning
Low voltage detected
General meaning for the brand's models, unless a model's own manual says otherwise.
Meaning
Low pressure fault
General meaning for the brand's models, unless a model's own manual says otherwise.
How the unit shows it
- LED 1: Stays Off
- LED 2: Keeps Flashing
- LED 3: Flashes once
- LED 4: Keeps Flashing
Causes and how to check
- the cited manual page, and follow-up questions
No account needed to look up codes.
Guides
- Pressure, low refrigerant and high discharge temperature errors: where to start
Pressure and discharge-temperature protection codes: tell a low charge from a blockage or poor heat rejection before charging.