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Mend Vaillant Ecomax 824 Home Heating Systems

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Mend Vaillant Ecomax 824 Fault Code Low Pressure

Where is the water switch- Vailant Ecomax 824-Fault code F25?

My Vailant Ecomax is showing a fault code of F25 (water switch - low pressure) I have checked the pressure which looks fine but I cannot identify the water switch, where is it or does it have another name?

Trevor
November 2010
VaillantVaillant Ecomax 824Heating, Home Heating SystemsVaillant Fault Code Low Pressure
Top left on the pipework going to the main heat exchanger, it's round and black with a yellow face and has two wires attached.

Carefree
November 2010

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