why does my boiler turn off when i run hot water

[tonyden]

hi all, my intergas boiler is working well with heating but when i turn on a hot tap it goes off, lights out on panel it will come back on after turning off at the mains spur for a minute . i have found if i turn on the hot tap on a very slow trickle.
i have had the cover off the boiler and checked connections, i pulled apart connectors and replaced them but it has made no difference.
not sure where its going, with heating on it not desperation point YET hoping for some suggestions thanks

 

[Deleted member 120897]

Which model of Intergas? How old? Could still be under warranty?

 

[tonyden]

out of warranty now, its 28/24 hre, it has now started to turn off no lights on panel then after five minutes it will start by itself getting stranger