My boiler lights and run for 2.3 mins untill the radiators are hot the flame then stops then the lockout lights comes on.if i try to reset imediately,the lockout occurs again before the boiler lights, if i wait afew minutes and then reset,the boiler lights and run for less than 1min and then locks out again.the pressure guage is at 1.5 bar but there is small noise in a pump we have changed the pump it worked for 5 days then start hapening some problem this problem is hapening only when the boiler is calling for heating the hot water is fine.any ideas what might be wrong would be much appreciated

Dino parisella, December 2008

It sounds to me like the diverter valve is not opening completely. This is a common problem with the Combi 80. However it is not easy to repair - you may have to call an engineer. Make sure he/she is familiar with the boiler before commiting yourself.

Lyndsey., December 2008

Potterton Comb 80?
My boiler lights and run for 2.3 mins untill the radiators are hot the flame then stops then the lockout lights comes on.if i try to reset imediately,the lockout occurs again before the boiler lights, if i wait afew minutes and then reset,the boiler lights and run for less than 1min and then locks out again.the pressure guage is at 1.5 bar but there is small noise in a pump we have changed the pump it worked for 5 days then start hapening some problem this problem is hapening only when the boiler is calling for heating the hot water is fine.any ideas what might be wrong would be much appreciated

Dino parisella

dino, December 2008