my baxi 105e goes to about 3 bar when central heating is on this causes the pressure relief valve to operate and empty the water out of the closed loop. so have o keep filling the boiler every day . i have change the relief valve and it is still doing it. can someone help please. thanks dave.

david brown, December 2006

expansion vessel has discharged its air,you need to pump it back up

stu, December 2006