Hi all, I have a baxi 401 back boiler the other day it stopped working the pilot light never went out it just wouldn't fire up, have checked the supply all the way down to the grey plug under the gas valve and all is fine, when u turn the thermostat up the pump turns on the fire just doesn't kick in, should mention this has previously done this a couple of months back but was only off for a day and it started working again, boiler was serviced July last year, if anyone has any solutions or could recommend someone from my area who could have a look and possibly repair for a reasonable price that would be great, I am in coatbridge just outside Glasgow, cheers Robert.