Description
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
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
