Dear all....Could anyone shed any light on the following ....In the last few days we have been experiencing shutdowns of this boiler with no apparent "pattern" to them. The boiler will work fine on its heating cycle for both CH and HW for an hour/two hours/four hours etc,then all of a sudden at the end of a heating cycle,it will simply shut down with a"ping" type sound being heard and the pilot light extinguishing!. After leaving it for a few minutes,i re-light the boiler as per instruction manual and it proceeds to work fine until the next time it decides to shut down!!...is this a thermocouple fault,or an overheat protection sensor problem??
Many thanks.
Many thanks.
