Service Diagnosis - Haier 1U12BS3ERA Service Manual

11 Service Diagnosis

11.1 Caution for Diagnosis
The operation lamp flashes when any of the following errors is detected.
1. When a protection device of the indoor or outdoor unit is activated or when the thermistor malfunctions,
disabling equipment operation.
2. When a signal transmission error occurs between the indoor and outdoor units. In either case, conduct the
diagnostic procedure described in the following pages.
11.2 Parameter of primary electronic appliance
name
Compressor
Fan motor
Reactor
4-way valve
parameter
Rated voltage:220-230V
Rated current:4.8A
Rated frequency: 50/60HZ
Rated voltage:220-230V
Rated current:0.2A
Rated frequency: 50/60HZ
Rated voltage:220-230V
Rated current:10.5A
Rated frequency: 50/60HZ
Rated voltage:220-230V
Rated current:0.1A
Rated frequency: 50/60HZ
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Installations
picture
Domestic air conditioner