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LuckyDave

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bossmillie

My central heating wont turn off

My central heating system has adopted a life of its own. Namely it wont turn off (unless I turn off the main power supply) I have a Honeywell ST699 controller. When i turn heating to 'off' the heating...
18:56 Wed 10th Oct 20071 answer, last by LuckyDave 18:05 Tue 06th Nov 2007

Only 1 question