The air pressure switch is a safety device which checks the fan is fully operational. It ensures that, if the fan fails within the boiler, there would not be a build up of noxious gasses with no means of extracting them safely. The printed circuit board m
- Fits Multiple Glow-worm Appliances
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.