Gree air conditioner error U8
Meaning
Disconnection of the exhaust temperature sensor
General meaning for the brand's models, unless a model's own manual says otherwise.
Meaning
Malfunction of zero-cross detection circuit
Models
3VIR09HP115V1A, 3VIR09HP230V1A, 3VIR12HP115V1A, 3VIR12HP230V1A, 3VIR18HP230V1A, 3VIR24HP230V1A, GWH09AAB-K6DNA1A, GWH09AAB-K6DNA1B, GWH09AAB-K6DNA2A, GWH09AAB-K6DNA2B, GWH09AAB-K6DNA3A, GWH09AAB-K6DNA4A, GWH09AAB-K6DNA5A, GWH12AAB-K6DNA1A, GWH12AAB-K6DNA2A, GWH12AAB-K6DNA3A, GWH12AAB-K6DNA4A, GWH12AAB-K6DNA5A
Meaning
Circuit malfunction of zero crossing detection
Models
GWH09AAB-K6DNA1A, GWH09AAB-K6DNA1B, GWH09AAB-K6DNA2A, GWH09AAB-K6DNA2B, GWH09AAB-K6DNA3A, GWH09AAB-K6DNA4A, GWH09AAB-K6DNA5A, GWH12AAB-K6DNA1A, GWH12AAB-K6DNA2A, GWH12AAB-K6DNA3A, GWH12AAB-K6DNA4A, GWH12AAB-K6DNA5A
Causes and how to check
- 2 possible causes
- the repair procedure printed in the service manual
- 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.