Baxi 105e combi boiler, radiators not at full heat problem

[ktepf]

Hi chaps, my boiler will not put out heat more than 40c to the rads, the 60c neon comes on for ten seconds then reverts back to 40c, a constant cycle.
Hot water is fine.
I have blead, flushed, cleaned return filter, checked flow, stats turned to full.
Any ideas please?
Regards
Keith

 

[Puddle]

possible faulty heating thermistor

 

[paul H]

Hi Ktepf,
i agree with puddle easiest and cheapest solution to check the heating thermistor first, also check what gas pressures you have in the heating mode when the boiler modulates maybe the boiler operating temp. is set too low
best of luck paul

 

[buster gonads]

Agree with puddle, change the heating Temp sensor before you do anything else, there easy to change as there in a dry pocket, last one i bought was £14 from the local gas spares shop, £4 from BES .

 

[buster gonads]

Did you get your boiler sorted and if so what was it.

 

[ktepf]

Hi chaps, thanks for the replys. I wiil change the sensor as advised, is that the one top left of the boiler named "Centeral heating Temperature sensor" in my instructions?
Re.gas preasure, not sure, but I suspect its OK as the boiler has put out full heat when installed and all other appliences are fine.
Cheers
Keith.
PS where is the spell check on this forum located?