Checking code 1112: Liquid level detecting temperature sensor abnormality (TH4)
Meaning, detecting method
- When saturation temperature sensor (TH2) or liquid level detecting temperature sensors (TH3, TH4) detects -40˚C or less (the first time) during operations, outdoor unit stops once, mode is changed to restart mode after 3 minutes, then the outdoor unit restarts.
- When -40˚C or less temp. is detected again (the second time) within 30 minutes after stop of outdoor unit, error stop is observed with code Nos. “1111,” “1112,” or “1113” displayed.
- When -40˚C or less temperature is detected 30 or more minutes after stop of outdoor unit, the stop is regarded as the first time and the process shown in 1. is observed.
- 30 minutes after stop of outdoor unit is intermittent fault check period with LED displayed.
Cause
- Gas leak, Gas shortage.
- Insufficient load operations.
- Poor operations of indoor LEV.
- Poor operations of OC controller LEV: Cooling : LEV1