FAULTY BOILER.

[STEVE COLLINS]

Hope someone has an idea of the problem with my boiler'

I have a two year old worcester bosch 28i RSF Combi.
First the heating packed up, now the hot water, pump working OK.,
But a few days ago the fan seemed to be labouring a bit, And now it's not lifting at all, Are there any initial checks i can make before calling the millionaires out, to determine the problem, I Am a plumber by trade but boilers are taboo nowadays.

Thanks a lot chaps.

 

[Slugbabydotcom]

If I was a gambling man I would have a round robin on the following 3 suspects
1 Fan
2 Diverter valve
3 CH thermistor

1 A bit of lubrication on the fan will help eliminate that possibilty

2 Diverter valve when you call for HW by turning te tap on make sure pin is coming out and operating the microswitch/es at the 'Starship Enterprise' end. You may have to remove the cover from the head and use a mirror to see. and or pull out the circlip and remove the head to check the pin is working

3 Change the thermistor anyway. They only cost about a tenner and always go sooner or later especially if your system water is dirty.


I cant see the job and few on here would speculate but at least there's a few pointers