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worcester 24i rsf-l combi boiler hot water too hot

Joined
29 Mar 2010
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Location
Durham
Country
United Kingdom
The hot water from my Worcester 24i RSF-L COMBI is too hot. I have no literature for this boiler and it was installed about 8 years ago. It is impossible to stand under the shower and the rads are also red hot regardless of the position of the control knob on the boiler. However if the knob is turned to anywhere near minimum then the boiler shuts down after a while. I suspect the PCB,. any body out there have any ideas
 
There are a number of possibilities.

Whilst you can check the sensor resistances the other possibilities include gas related problems which would need a registered engineer.

Tony
 

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