hot water wont switch off when central heating on!?

Postby peterxwilson » Thu May 24, 2007 4:55 pm

suddenly our system misbehaving. When the hot water is active then the cental heating pipes warm up too and the thermostat wont swith the boilder off though it still clicks. Even if we have hot water on only the cental heating radiators still heat up. I presume there is a thermostat problem...or is it worse...its a potterton gas fired fanned balanced flue gas fired
Posts: 1
Joined: Thu May 24, 2007 4:49 pm


Simply Build It

Postby htg engineer » Thu May 24, 2007 8:55 pm

what thermostat wont switch the boiler off, the room thermostat or the boiler stat ? if radiators are heating up when only the hot water is selected, its a problem with the actuator, or 3 port valve. Remove the actuator and select water only, then heating only, make sure the valve turns, also check spindle on three port valve is free to move.
htg engineer
Posts: 3219
Joined: Tue May 22, 2007 5:22 pm

Display posts from previous
Sort by
Order by


  • Related Topics