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Ask Jerry Your Own Question
Jerry, Plumber
Category: Plumbing
Satisfied Customers: 760
Experience:  Residential journeyman plumber, over 20 years experience.
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My heating is stuck on full. I have a boiler and a separate

Customer Question

My heating is stuck on full. I have a boiler and a separate water tank.
Submitted: 1 year ago.
Category: Plumbing
Customer: replied 1 year ago.
The heating turns off if the hot water is off, but if the hot water is on the heating is on full - even when switched off. The thermostat does not appear to function.
Expert:  Andrew Smith replied 1 year ago.

Do you have a motorised valve that could be stuck in the open position?

Do you have the boiler details?

Customer: replied 1 year ago.
How do I tell if the valve is stuck?
The boiler is a Potterton Suprema 50L