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Chapter 2 Components Description
Check Point
Model
Flow Sensor : 7855P-083
CN3
(Circuit Board)
Function
This sensor detects water flow (more than 0.5 GPM) through DHW loop.
Failure Event
Water flow is not detected.
Effects
Domestic hot water set point is not achieved.
Error Code
N/A
① Restart the appliance.
Diagnostic
② Visual inspection : check flow sensor wiring for proper connection.
③ Visual inspection : check flow sensor for debris.
① Ground : Connector (blue ⑥)
Color / Wire Number
② Flow Signal : Connector (white ⑤)
③ DC 5V : Connector (red ④)
① ② ③ ④ ⑤ ⑥
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