use some grips and turn bleed valve to open.Turn tap in then undo gland nut on valve the small on the spindle goes through and rap some ptf tape around it and do back up
you should not need to change it if u have not had to keep topping boiler up or you have drained it down .you can buy test kits which tell u strength in system
hi have given g s number etc to forum but not verified yet as only done a couple of hours ago im sure your right about fault and im a muppet.Doing this to help mate out and realy pushed for time i havnt got and stress i dont need .
have down loaded mi but not very clear fault is saying purge gas witch is to valve and their is no fault chart to follow so if you have a clue it would help thanks
hi been to said boiler today the boiler was run for 8 months then drained down 5 or 6 years ago !! i filled up ch and hw turned on power nearly all workes got 21mb at inlet 0 at outlet sparks to try and light gas valve stuck i think have never stripped one down any ideas thanks