Ideal classic mystery

[Jackbooted]

Any Ideal experts out there ?
I am struggling with this one. The boiler fires by electronic ignition of the pilot at the back of burner, then lights burner straight away, To view the pilot it is easier to take out the detection electrode and look through the gap, when I do this it lights the pilot every time, and off it goes. Screw the detection electrode back into position, test it and it is OK.
Two hours later he is on the phone, same problem, I can hear the spark, but no light of pilot, take off the detection electrode and it lights, screw it back and it still lights, turn it on and off a couple of hundred times and still it lights, go home for a few hours and the bloody phone rings again................Same problem, no pilot

Gas is OK, pilot is clean and electrode lead is OK, but I'm not, any ideas ??

 

[Puddle]

common fault on this boiler is the pilot solinoid sticks intermitantly,new gas valve required
However persume you have removed burner to check pilot,if so check you have not traped electrode lead at rear of burner when burner replaced,easy to do

 

[mickg1]

how did you get it fixed in the end mate iam going through the same thing myself, but iam reluctant to get a new gas valve untill iam positive

 

[Barry98]

It's 3 years old and probably hasn't been back since