Faults And Protection - Haier HP200M2 Installation And Service Manual

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8. Faults and protection

Fault type
Operating temperature protection
Air exhaust temperature protection
Evaporation high temperature
Compressor protection
protection
Evaporation low temperature
protection
Compressor over-current
Over-current protection
protection
The system will automatically cut off
Electricity leakage alarming
power supply if any line fault occurs
Over temperature alarming The actual water temperature≥85℃
Fault of the inner If short circuit or circuit break occurs
temperature sensor to the sensor
Fault of the ambient If short circuit or circuit break occurs
temperature sensor to the sensor
Fault of the evaporation 1 If short circuit or circuit break occurs
temperature sensor to the sensor
Fault of the air exhaust If short circuit or circuit break occurs
temperature sensor to the sensor
Fault of the evaporation 2 If short circuit or circuit break occurs
temperature sensor to the sensor
Communication of main control panel
Communication fault
and display panel is abnormal
Pressure switch protection Action of the pressure switch at the
exhaust outlet
Ambient temperature Ambient or outdoor temperature
protection <-7℃ or>37℃
Fault of the Solar or boiler If short circuit or circuit break occurs
temperature sensor to the sensor （for HP250CM2）
If not received the Off-peak signal
Fault of the Off-peak power
when selecting switch signals by
switching signal
power companies
Digital
Action
indication
Automatically start
F2
electric heater
F3
F5
Three times or more,
you need to manually
F7
start BOOST
F6
E1
E2
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
26
Whether to start
electric heater
Can't start electric
heater