Faults And Protection - Haier HP200M2 Installation And Service Manual

8. Faults and protection

Fault type
Compressor protection
Compressor over-current
protection
Electricity leakage alarming
Over temperature alarming The actual water temperature≥85℃
Fault of the inner
temperature sensor
Fault of the ambient
temperature sensor
Fault of the evaporation 1
temperature sensor
Fault of the air exhaust
temperature sensor
Fault of the evaporation 2
temperature sensor
Communication fault
Pressure switch protection Action of the pressure switch at the
Ambient temperature
protection
Fault of the Solar or boiler
temperature sensor
Fault of the Off-peak power
switching signal
Action
Operating temperature protection
Air exhaust temperature protection
Evaporation high temperature
protection
Evaporation low temperature
protection
Over-current protection
The system will automatically cut off
power supply if any line fault occurs
If short circuit or circuit break occurs
to the sensor
If short circuit or circuit break occurs
to the sensor
If short circuit or circuit break occurs
to the sensor
If short circuit or circuit break occurs
to the sensor
If short circuit or circuit break occurs
to the sensor
Communication of main control panel
and display panel is abnormal
exhaust outlet
Ambient or outdoor temperature
<-7℃ or>37℃
If short circuit or circuit break occurs
to the sensor （for HP250CM2）
If not received the Off-peak signal
when selecting switch signals by
power companies
Digital Whether to start
electric heater
indication
Automatically start
F2
electric heater
F3
F5
Three times or more,
you need to manually
F7
start BOOST
F6
E1
Can't start electric
E2
heater
E3
E4
E5
Need to manually
start BOOST
E6
ED
E7
Can't start electric
heater
E8
Automatically start
E9
electric heater
EE
Need to manually
start BOOST
EF
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