4.9.12 Water Pressure Sensor
Part Check Point
Function Detects water pressure in the heating system.
Failure Event Unable to detect or measure to change in water pressure.
Effects Water filling system does not operate automatically
Error Code E302, E352, E353
Diagnostic
1. Visual inspection: check the circulation pump connection wire.
2. Voltage check: Check range of voltage shown below.
Testing/inspection
information
Black-Red : DC 0~5V
Legend to cross-section drawing
1. Pressure connection
2. Ceramic sensor
3. Amplifier electronics
4. Cover
5. Electrical connection (RAST 2.5)
To Next Page
Loading...
Need help?
General
