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Hot Water Fine, but no Central Heating

Postby davethewave » Fri Oct 12, 2007 8:56 am

Hi – I’m having a most odd issue with my Potterton Lynx 2 Combi Boiler.

The hot water works fine. However, if I go to switch the central heating on, the boiler makes a quiet whirring noise, but nothing else happens, no lights, no firing up and no heat. However, if I turn on a hot water tap (in the bathroom in this case) and then switch on the central heating, it springs to life. Anyone got any ideas, this has just started to happen.
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Simply Build It

Postby The Heating Doctor » Sat Oct 13, 2007 1:13 am

Sounds like a problem with the diverter valve in your combi.
The Heating Doctor
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