WATER PRESSURE SENSOR
Subject
Description
Part Function
It is the component measuring water pressure in the central heating
circuit.
Impact in Case of Faulty
Operation
1- The boiler gives low or high water pressure error.
2- It detects water pressure different from user’s actual value.
3- It may not detect pressure increase even if user fills water into the
system.
Primary Relevant Error
Codes
F37, F40, F47
Troubleshooting and
Testing Method
Visual Inspection and Testing:
1- Checking whether cable connections are proper and without
damage
2- Checking whether water inlet of water pressure sensor is clogged
3- Voltage Testing
Maintenance
Requirement
No special maintenance requirement
Maintenance Period
-
Testing Definition
Testing Method
Water Pressure
Sensor
Remove electrical connector on water pressure sensor when the power
of the boiler is still on, and measure the DC voltage on "IN"-"GND" ends
shown below. Check whether the voltage is in the range of 4.9-5.1 V DC.
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