Great thanks I'll try that to establish whether the gas valve is the problem.
Sorry Tony and colleague, I didn't mean to appear rude. I appreciate all the voluntary advice provided free on this side.
Regards
Hi Tony,
I'm very recently qualified, but will be working with my boss to resolve this.
I've recently chemically cleaned the system, and replaced the diverter valve on the boiler. This issue has occured within of a week of this being done.
Yes, when I detach the thermistor the flame...
Hi All,
My 5 year old performa has just developed a problem with both the DHW and CH. When there is a demand for either HW or CH the boiler fires in cycles (i.e. fires then runs cool). When the boiler does fire initially the flame doesn't modulate at all hence the thermistor I assume keeps...