E7
Mitsubishi Heavy
Mitsubishi Heavy air conditioner error E7
Meaning
Indoor return air sensor
General meaning for the brand's models, unless a model's own manual says otherwise.
Meaning
Indoor unit return sensor [ThIA] defective (resistance is open circuit or closed circuit)
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 Once
- 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.
Guides
- Checking an air conditioner temperature sensor (thermistor)
How to check the room, coil or discharge sensor when the unit reports a sensor error: measure its resistance and compare with the exact model's table.