Central Heating Question

Hot water tap runs hot then cold

For the last 4 weeks ALL of the hot water taps in my house run hot then cold. I can fill up half a washing up bowl with the hot water then it goes cold. I cannot get the hot water again until about an hour later and then only half a washing up bowl.

I have a combi boiler but the heating is working fine - all radiators are unaffected and my electric shower works fine to.

1 Answer

Best Answer

Two possible causes here:

1. Diverter valve not operating correctly
2. As above plus Hot Water stat/sensor faulty

Suggest you contact a competent Gas Safe heating engineer

Answered 3rd Mar 2013

Boiler Homecare

Member since 6 Jan 2010

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