ideal boiler constant ignition

[chelsea]

just had a call and going to have a look later

customer says once boiler is lit

it carrys on sparking on the ignition,to me sounds like the pcb

anyone can help me with this>

 

[wnjswozo]

check polarity on mains feed into boiler,earth on boiler,ask if any elecy work done on house

 

[quality]

Check flame sensing electrode first

 

[moony]

first check would be the polarity - as all boiler checks should start with the simple safety checks. then i would be checking the flame sensor.

 

[quality]

If polarity was reverse it would not spark at all !!

 

[moony]

the basic checks carried out at the beginning of every fault finding job i do on a boiler are the polarity, earth and live checks regardless of the problem

then i would go on to checking the parts i felt were faulty which in this case the flame sensing device would be one of them - so everyone is right.

 

[Billy Bob Bob]

and you are absolutely correct to check in this manner it could well be sparking and not detecting with reversed polarity,and i would do the same check detection lead/electrode next with a continuity test failing that its the pcb