baxi105e instant combi

[gest1221]

help needed on a baxi 105e instant boiler faults from switch on 1st red light flashes this is in dhw or central heating mode after a few resets the boiler will start up then fault again after a few more attempts the boiler will remain on for upto half an hour time limit will vary the water temp does seem to alter from hot to cold then hot again flow looks good after this the boiler will again fault 1st red indicator light flashes and boiler will not fire up.
thought it was the dhw diaphram so changed to new one at the same time changed dhw thermister no change in boiler fault. is this a gas combustion problem or diverter valve if diverter is there any way to check the operation before removal from boiler and is there a service kit for this part should point out that i have no problems with this unit before and the unit is around 12 years old.

 

[Howsie]

Are you GSR? Please read the forum rules on the first page.

 

[gest1221]

no not gsr if it is a problem on that side of the boiler will contact corgi registered heating expert only looking for indicators to the fault ie if its the div or should i get some one in to look at

 

[Dotty]

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