HI ALL, I HAVE A MAIN COMBI 30HE.......THE PROMLEM WITH THE BOILER IS THAT WHEN THERE IS A DEMAND FOR CONSTANT HEATING THE BOILER FIRES UP AND THE TEMP' 30deg' NEON LIGHT COMES ON, THEN WITHIN A COUPLE OF MINUTES OF THE BOILER RUNNING, THE TEMP' RISES TO MAX 80 deg', ONLY THREE RADIATORS GET HOT AND...
