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Andrew Smith
Andrew Smith, Home Appliance Technician
Category: Appliance
Satisfied Customers: 3664
Experience:  Gas cooker specialist
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I have a Glow Worm Hx 18 boiler about 5 yrs old. Put in new

Customer Question

I have a Glow Worm Hx 18 boiler about 5 yrs old. Put in new hardwired thermostat 2 weeks ago which did not function. Just changed this to a wireless thermostat which seemed to work ok for about a day, however thermostat set at 20 now reading 22 and boiler still pumping out heat. Any obvious reason or fault, no fault reading on the boiler.
Submitted: 1 year ago.
Category: Appliance
Expert:  Andrew Smith replied 1 year ago.
Is the pump wired to the boiler or from the junction box?