HI GUYS
LOOKING FOR INSPIRATION AS WIFE IS CRACKING UP.
BOILER WILL NOT FIRE UP, FITTED NEW APS STILL NO JOY.
IF I REMOVE RED PIPE FITTED TO APS & SUCK SWITCH CLICKS, I RECONNECT PIPE & BOILER FIRES UP NO PROBLEM.
JIMINBLACK THINKS POSSIBLE CAUSE COULD BE FAN VENTURI NOT SURE WHAT I...