hi guys, went to see a intergas combi. Zero pressure so I tryed to fill it up but digital guage didn't go up. Then the prv on the boiler started making a loud noise like a rattling.so I stopped trying to fill up.
Cheers I'll try that. I've ordered a inline pressure guage and I'll clean it. I'll also remove the pressure sensor and clean that out too.. fingers crossed.
Thank you a lot guys your my bread and water !