Hello all,
I wonder if you can help?
My compact glow worm compact boiler is situated downstairs and my bathroom is upstairs.
When i turn on any of the hot water taps in the bathroom, the water is hot initially and than turns cold. If i turn the tap so that the water has a slow flow, the water becomes hot again.
Any ideas why this is happening. Any help would be much appreciated.
Thanks for listening!
Best wishes Philip

Philip, February 2009

my gas man came to mine for same sort of problem it was the thermistore

Alex Field, February 2009

You did not say if boiler fires , most likely is sludge in DHW plate heatexchanger, will need to descale it
check it. you will need expert check.

Mr K, February 2009