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💦 my combi boiler is leaking outside 💦
Customer called to say their boiler was leaking outside the wall and the pressure was up near the red so has decided to turn the boiler off until I can get there…
Turned up to this one to find a Worcester Bosch 30si sat on the wall with the pressure at 2.5bar and water dripping out the prv…
Boiler was cold and had been turned off for over 24 hours like they’d told me on the phone so this proves it can’t be an expansion vessel problem…
So we’re getting mains pressure into the central heating system, so we need to look at how this is possible…
The filling loop key is still inserted so this is the first thing I try to see if this is passing, failing that if designed my own sketch to help us get our head around this