boiler goes off, and red light comes on?

the pressure gauge should be no more than 1.5 bar when the boiler is cold when the boiler heats up it will go higher as the expansion of hot water rises if there is too much pressure you will get water comming out of the release valve

ian day
April 2009

if its a combi boiler you need to top it up. On the boiler there will be a gauge that tells you the water pressure. its needs to be between red and green, about 2 bar.
under the boiler there should be a hose loop with a valve at the top, turn this valve on untill you get enough water in the system to up the gauge.
hope this helps

Val
April 2009

Oil boiler? Which one?

John
April 2009