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SINCLAIR
Troubleshooting:
2.3 E4 High Discharge Temperature Protection
Error code:
Applicable model: HOTWATER; SAVE; PRESET; NIGHT
Error judgment condition and method: E4 is displayed on the wired controller. The troubleshooting
method is shown in the flowchart below.
Possible cause: (1) Discharge Temperature Sensor Error; (2) Refrigerant leakage of the unit; (3)
Insufficient refrigerant of the unit
Troubleshooting:
2.4 E6 Communication Error
Error code:
Applicable model: all models
Error judgment condition and method: E6 is displayed on the wired controller. The troubleshooting
method is shown in the flowchart below.
AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL
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