looses water pressure when in stand-by. when you recharge the pressure and use it the system goes upto 2.5 bars pressure, then drops below 0.5. in stand-by
the minimum pressure should be 0.7 wich is what i charge it to.
have you got water coming out of the overflow outside??
if so the pressure release valve is stuck ope like mine was, had it replaced and it was fine, only cost about £10
Trigger
April 2006
Check the pressure in the expansion vessel using a tyre pressure guage when the system is under zero pressure. It should be about 0.8 bar. If not pump it up with a bicycle pump.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix home heating systems.