hi and thanks in advance for advice
got a halsted 101 boiler that is doing me missus and me crazy the boiler works fine no problems till for about a year now when i get up in the morning and turn the hw tap on and gess what nothing just stone cold water so have to reset the boiler as got the red light (lockout) on for no apparent reason as whe dont use it a night time then it started doing this just a few times in the week instead everyday but now five days ago my son girfriend was having a shower and she turned the hw nob on the boiler to full blast after 5 minuts it started making strange noises so i turned of let it cool down and restarted it still works fine with hw and ch but you can see the gas flames going up and down and they make a pop pop is it a easy repair will it cost too much or should i just get a new boiler fitted? i was thinking of the new vaillant plus 837 condensing combi
thanks
AL