I have a glow worm compact electronic combi boiler which, when I turn it on ignites the burner and heats the hot water when no taps are on. The only way to stop heating the water it is to turn the boiler off. Any ideas?

Sarah, July 2006

I would suggest that the water flow switch is stuck in the "on" position, this is easily recitified by cleaning the switch or replacement of it... In some very rare cases, older "mixing" showers can also cause these appliances on get stuck "on" when the mixing shower's thermostat cartridge fails and gives the effect of water passing through the appliance.

ccMods, July 2006