Compact 100e, Glowworm - not firing

[beefster]

Had a problem on the boiler with the Domestic hot water switch yesterday...... sorted that out by replacing the broken retaining clip. On restoring the power the boiler would not fire...... Fan is not starting.

I am only getting 45volts out of the control card to the fan? This did fluctuate up to 135V at one point but is now a steady 45V! I have assumed this is a main control card fault but thought i would seek advice before buying one as they aint cheap!
Should i be checking anything else first??

 

[beefster]

Just to add...... its not firing in heating or DHW demand mode.

Anyone any ideas?

 

[beefster]

Sorted..... New PCB control card. £111 + Vat locally which i didnt think was too sad compared with internet prices.

Are the pld cards repairable.... might hold on to it as a spare?