Hi,
then i have a potterton kingfisher 2, the pilot is on, i know how to action the motorized valve manually, i can notice no hot water in the tank, i have no idea about about the pump where it is or how to figure if it is working or not. I had everythink working fine and suddently not more heating and hot water.

thanks lot for help.

max, January 2011

i can tell also that. after retrying to fire it up again, turning the thermostat to off for a while, and returning it on, the main burner light up for only few minute and died again.

If the problem is the pump, how do i check it ?

max, January 2011

Most likely cause is the pump is not pumping, even when they seem like they are working the motor might be but the pump isnt

boiler bill, January 2011

Cheaper to get in a service engineer not what you want to here I am sure, but messing with it will make matters worse good luck

marcus, January 2011

check electrics from fuse to valves

brian, January 2011