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Description
A Vaillant air pressure switch is a safety device which checks if the fan is fully operational. It ensures that if the fan in the boiler fails, there will be no build-up of dangerous gases with no way to vent them.
- Fits a large number of Vaillant appliances
Technical specification
Waist Sizeaa45cd14gzTypeFan Proving SwitchCompatible WithTHERMOcompact 615 E, THERMOcompact 620 E and THERMOcompact 624 ESupplier Part Number0020018138Brand NameVaillant
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