Baxi Combi Boiler - Wont switch off

[Ali]

Hi, can someone help me please, I have baxi combi boiler (approx 6 years old). The heating/HW goes on and off ok at scheduled times but the boiler itself keeps firing up and does not go off. I know the boiler is not switching off right as it makes a different sound trying to shut down. Burner light goes out when not on scheduled time and other lights stay on. Any ideas on how to fix this?

 

[migoplumber]

probably the anti freeze cycle - leave it alone till end of the cold spell

 

[REDSAW]

welcome to the forum ali.

 

[Billy Bob Bob]

are you certain its a combi? do you also have a cylinder?if so i think you have a baxi solo you said hot water goes off at scheduled times?combis create dhw on demand please give more info model etc

 

[Ali]

Its a Baxi System 35/60.

 

[Billy Bob Bob]

could be a pcb issue,pump over run faulty you need to get it checked out or a flow switch sticking,or ntc but i dont know if this boiler has one

 

[jack the lad]

hi new member i have a baxie eco 80 heating stays on i have change the pcb as per book fault finding it still wount go off only manulie

 

[kennedy1978mark]

hi jack just repaired a baxi eco 80 with same fault as yours, that was a faulty diverter micro switch .. had also burned out the pcb as the customer just left the fault and carried on using the boiler just switching on and off at panel ,

 

[Billy Bob Bob]

read the thread fully its not a 80 eco its a SYSTEM BOILER A VERY DIFFERENT BOILER ALL TOGETHER

 

[kennedy1978mark]

Was replying to jack the lad not the original post