FLOW SENSOR
Subject
Definition
Part Function
It is the component allowing that tap water demand may be
detected by boiler.
Impact in Case of Faulty
Operation
Boiler cannot detect tap water demand; even if there is any tap
water demand, it always runs in the CH mode.
Primary Relevant Error
Codes
-
Troubleshooting and
Testing Method
Visual Inspection and Testing:
1- Checking whether cable connections are proper and without
damage
2- Checking whether there is any oxidation, etc. around the flow
sensor cable inlet
3- Voltage Testing
4- Filter cleaning and flow turbine group inspection
Note: If P00 parameter is "5", the boiler does not function with the
tap water since it will be only in the central heating mode
Maintenance Requirement
No special maintenance requirement
Maintenance Period
-
Testing Definition
Testing Method
Flow Sensor
Turn the tap water on when the power on the boiler is on.
Remove electrical connector on flow sensor and measure the DC
voltage on "IN"-"GND" ends shown below. Check whether the
voltage is in the range of 11.5-12.5 V DC.
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