The 12 year old Potterton gas boiler in the loft remains 'on' (heating water and radiators) despite the livingroom thermostat being turned to zero and the airing cupboard (acl lifestyle) controller switching the heating and water off. Water temperature and radiators become extremely hot (far more...

Hello, I'm currently renovating my basement. It had the pipes for in-floor heating installed at the time that the foundation was laid, but was never connected. I have plumbers in to give me quotes on getting it set up. All of them tell me that in-floor heating must be run off a boiler, not a...

My York Diamond 80 is not heating. When I turn it on the fan starts but flame does not attempt to ignite. The diagnostic code flashes 4 times. Sheet says 'Aux. Or Spill Limit switch' What are these? Where are they? Can they be reset?

Where is my Aux. Spill Limit Switch on my york Diamond 80?:confused:

I have an error code that says the aux spill swich is open, But I think it is just going bad because it works sometimes and may be getting ready to go bad. Where to find an aux spill switch for york diamond 80 furnace?