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Mend Siemens RK21 Boiler Water Flow

How can I fix my boiler?

The boiler is 21 kW Siemens model, and there is a problem with the water flow relay - it is not reacting (when the water is turned on there is not the characteristic sound and the contacts does not conduct three phase voltages) All the filters are cleaned up, and the water flow limiter is been removed. Thank you!

Vlado
October 2012
SiemensSiemens RK21Heating, Home Heating SystemsBoiler Water Flow

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