Recent content by plasterer4

can anybody help with answers 2 my vokera compact 24 why does the pressure keep rising up to 3.5 bar and blowing off when heating comes on ive replaced the expansion vessel wen the heating goes off the temp gauge just drops slightly and i have 2 drain it back down to 1 bar again ive cleaned all...

can anyone tell me why my temperature gauge rises up to the red everytime heating comes on and blows off. i have already had expansion vessel renewed but the problem still arising? what does the flow restrictors job do in the boiler?