Recent content by Gixxer40

I'm not sure what was the actual stuff that was blocking it , it came of in black flakes but you could rub these flakes between you fingers and the would disappear , used costic because I had seen some one mention it either on here or another forum , oust was another one people had used , all I...

Removed the plate to plate heat exchanger today and cleaned it with cosmic soda , also after emptied the costic I hit it with a hammer lightly of course then flushed it. Out then repeated the proses until no more sediment etc was coming out , refitted , boiler working fine now ! :-)

I did take the advice mate ! The exspansion vessel was charged I located the Schrader valve on top bk of boiler and released air from it no water I then recharged it to 10 lbs , as per vaillant spec . So really looks as if it was the pv as heating was on all afternoon slight increase come in...

Thanks for your help , I found the pressure release valve to be leaking at very low pressure ! Replaced the switch and seems to be working ok now pressure rise is only .6 of a bar wen hot :-) . Still got the hot water problem tho burner kicks in and heat to approximate 90 d and then knocks of...

Hi wondering if any one could offer some advice , wen central heating is running the pressure increases by a lot ie from 1 to 3 bar , then wen cools it looses pressure , water is coming out of over flow outside of the house , plus water through the hot tap is not as hot as used to be , I've bled...