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SINCLAIR
The water heater stops operation and the wired controller displays A8
The water heater stops operation and the wired controller displays A9
The water heater stops operation and the wired controller displays An
The water heater stops operation and the wired controller displays AU
The water heater stops operation and the wired controller displays AP
The water heater stops operation and the wired controller displays Ar
The water heater stops operation and the wired controller displays U9
The water heater stops operation and the wired controller displays EE
2 Troubleshooting
2.1 E1 High Pressure Protection
Error code:
Applicable model: HOTWATER; SAVE; PRESET; NIGHT
Error judgment condition and method: E1 is displayed on the wired controller. The troubleshooting
method is shown in the flowchart below.
Possible cause: 1) Poor connection of the water tank temperature sensor; 2) Loose pressure switch
cable; 3) Pressure switch error; 4) Main board error; 5) Main board error;6)the gas valve and liquid valve
of outdoor unit is not normally opened;6)Abnormal heat exchange of the water tank.
AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL
Symptom
High temperature protection of driven module of
inverter outdoor fan
Malfunction of temperature sensor of driven
module of inverter outdoor fan
Malfunction of drive storage chip of inverter
outdoor fan
Drive charting loop malfunction of inverter
outdoor fan
Abnormal protection of driven AC input of
inverter outdoor fan
Malfunction of temperature sensor of drive
electric box of inverter fan
Zero-crossing protection of drive AC input of
inverter fan
Malfunction of storage chip of main control
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Error Description
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