potterton profile 50e no ignition

[yoda33]

Boiler sparking everything calling for heat, no pilot gas on outlet of gas valve, pressure switch clicking, fan going, pump going, pilot electrode sparking ok. No holes in pressure switch pipes, Any ideas what the problem could be?? Your help much appreciated

 

[gowdon]

I would say that if its aparking ok then aps has proved ok,check inlet pressure?Is there voltage to the gas valve?If so suspect electronic failure from pcb

 

[croydoncorgi]

Once you have identified a 'gas problem' (looks like you have), you're in CORGI terrritory... Suggest you get one in.

 

[ChrisR]

Is there voltage to the gas valve?If so suspect electronic failure from pcb

Fink you meant if NOT ...?

 

[yoda33]

Gowden, checked the voltage from pcb. The voltage from black - neutral to gas valve 234volts and neutral to white fluctuating low voltage. What do you think it could be then pcb or pilot solenoid