E14
Mitsubishi Heavy
Mitsubishi Heavy air conditioner error E14
Meaning
Incorrect setting of SW2 on indoor unit PCB when setting up a master / slave system. Incorrect control wiring between master and slave(s) [XYZ]. Open circuit of control wiring between master and slave(s)
General meaning for the brand's models, unless a model's own manual says otherwise.
Meaning
Outdoor/Indoor communication error: master/slave system wiring or setting fault
General meaning for the brand's models, unless a model's own manual says otherwise.
Meaning
Master/slave setup error: incorrect SW5 setting or wiring fault between master and slave units
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: -
- Indoor circuit board Green LED: -
- Outdoor circuit board Red LED: -
Causes and how to check
- 3 possible causes
- 2 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.