Boiler stopped firing sometime on Saturday - Pilot came on but no ignition. Did a quick google, hmm. Found a boiler engineer locally but didn't call - no money this month for costly repairs.
Spare 10 minutes tonight, no missus saying "what are you doing now". Popped the cover off, then the main cover and finally the combustion chamber cover. Looked inside - lots of bits of dirt and the ignition looked a bit like an old spark plug. Out with the hoover, then the screwdriver and scraped the ignition and the 'ground'. Hoovered again. Put back together.
Starts first time now, no extra ignition clicks - runs like new. Love our 22 year old little Baxi Solo 2. Whoop.