Ok thank you for your advice I had it working again as I blew in both white and red pipes also I pressed the switch on the top but all it does is sends the pressure gauge loopy then cuts out again.
if your pressure gage is 1 to 1.5 bar when the boiler is cold, then u need a gas technician to investigate the fault. However if the pressure has dropped well below 1 then you have to repressurise the heating system, normally with a filling loop and key under the boiler. bring it up to 1 bar and the boiler should start working again. if pressure drops overnight, time to get a technician out to do a repair
The button at the top keeps popping up and when I press it down it comes back on what is causing this ? Sorry I am only asking so I have a rough idea what to say when someone comes out