Hi, I hope someone can help. we have one of these boilers, halstead ace high, and even when its turned off, not on timer but the little switch is down at the bottom the central heat is still kicking out. We can only turn it all off completely on the left hand side. that includes the water. if you switch it to hot water only it still kicks out the central heating and the radiators are boiling hot. does anyone have any idea what this could be? kind regards. sabine
Halstead ACE High boiler
- Thread starter colgans512
- Start date
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usually the diverter valve leaking water into hot water switch shorting it out so it thinks it wants to heat the water
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