Worcester Bosch Greenstar R40 HE combi plus

[Bart]

Hello,

I have a worcester Greenstar R40 HE Combi plus that had been over heating and coming up with Fault code E9. I have had two engineer visits with the first one replacing CH sensor and DHW flow sensor. And the second engineer replacing fuses on the mother board.

The boiler still overheats when the hot water temperature control is set to maximum. It seem to be working when the hot water temp control is set to about 60%. The water flow in the taps seem to be the same. None of the two engineers could give any further explanation.

Have someone experienced similar problems or any ideas?

Thanks

 

[Rickster123]

The only info we can provide is get a better engineer in to look. Maybe put an ad here..[DLMURL="http://www.ukplumbersforums.co.uk/im-looking-plumber-gas-engineer/"]I'm looking for a Plumber or Gas Engineer[/DLMURL]