DIY Doctor UK DIY Forums

Posted: **Sun May 30, 2010 5:17 pm**

I've had this problem for a few months now. The rads work OK, but the hot water starts to come through the taps only for a minute or so, then goes cold again.

I haven't managed to run a bath for months and If it weren't for my electric shower I'd not be pleasant to be around!

Engineers don't seem to be able to solve the problem.

Help?

Posted: **Sun May 30, 2010 8:40 pm**

We need the boiler make and model, as it could be many things

htg

Posted: **Sun May 30, 2010 11:02 pm**

Sorry, I should have thought of that.

The boiler is a Ravenheat, between 6 and 8 years old. I don't know the model I'm afraid and it's in the loft, so very difficultfor me to get to.

Posted: **Sat Jun 19, 2010 7:43 pm**

Ravenheat - well know for the HW side of heat exchanger to clog up

Posted: **Sat Jun 19, 2010 9:11 pm**

If it's a combi - then it's probably a diverter or sensor fault.

htg

Posted: **Mon Jul 05, 2010 10:11 pm**

clogged up domestic heat exchanger, manifolds or fault thermistors

DIY Doctor UK DIY Forums

Gas boiler heats rads, but not water - why?

Gas boiler heats rads, but not water - why?