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Vaillant

Vaillant 0020018138 Fan Proving Switch

£104.54 GBP
£104.54 GBP
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The air pressure switch is a safety device which checks the fan is fully operational. It ensures that, if the fan malfunctions within the boiler, there would not be a build up of dangerous gasses with no means of venting them. The printed circuit board mo

  • Fits a large number of Vaillant Appliances

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