Hi, Should my glow worm swift flow combi boiler be giving hot water all the time? Only does when timer is on. It is also showing a flashing red 'low pressure' light. Looked at pressure gauge and it shows 0. Any help would be greatly appreciated.
on combi boilers if your water pressure runs to .750 or below it is bad for the boiler.... it can break it so as such it shuts down the and will not fire up... don't worry.. simply go to the boiler inlet tap ( you will find it where the water pipe goes into the boiler.. the cold feed) and turn it on until the gauge goes to 1.5 bar on the dial. The boiler will now fire up when hot water is demanded by tuning on the hot water tap....Don't stop there because it sound like you have a very slow water leak on one of your radiators or a pipe possibly. Have a good look you will also need to bleed your radiators and when doing so keep periodically looking at your boiler gauge as this will go down slightly when letting air out of your central heating system.. just keep re pressurising it up to 1.5 bar....that should do it Good luck
