Worcester Heatslave 18/25

David14d · 29 Oct 2018

Hi
I have a Worcester Heatslave 18/25 with a strange problem. Hot water works fine boiler fires up as normal, when the heating is turned on demand from thermostat is there but the boiler wont fire. switch the hot water off and the boiler fires up. Deselect the heating and select again, wont fire. select the hot water then deselect and the boiler fires. Any ideas?

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Worcester Heatslave 18/25

David14d

DIYnot Local

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