When heating is on my Baxi ignites, the LEDs go up the temperature scale but then after a few seconds, flame light switches off and LED's drop again to a low temperature. A few minutes later the same will occur, but the boilers flame light always switches off before high temperature is maintained, thus radiators are luke warm.

Any ideas ?
Thank you

Steve Evans, December 2007

change central heating sensor first cheapest before pump

grahame, December 2007

hi,,
do the hotwater work ok , if so the fault lies in the diverter valve assembly and would neeed to be exchanged for a new unit. if it do not work in hot water then it is a high possibility that the pump has failed.....

terry ellis, December 2007