42
Mitsubishi Heavy
Mitsubishi Heavy air conditioner error 42
Meaning
Current cut
Models
SRK15ZTL-W, SRK25ZSP-W, SRK35ZSP-W, SRK45ZSP-W
Meaning
Heating overload 1 (outdoor temp. 5~12℃)
Models
SRC25QA-S, SRC35QA-S, SRK25QA-S, SRK35QA-S
Meaning
Heating overload 1 (outdoor temperature: 5~12ºC)
Models
SRK25ZJP-S, SRK35ZJP-S, SRK50ZJP-S
How the unit shows it
- RUN light (10's digit): 4 time flash
- TIMER light (1's digit): 2 time flash
- Occurrence conditions: Compressor start fails 42 times in succession and the reason for the final failure is current cut
- Error display: (2 times)
Causes and how to check
- 7 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.