Dropping PRessure on a Woucster Heatslave

[chris_hesketh31]

I have a heatslave 9.24 I managed to find the filling loop as the pressure was always low, and filled it to 1 Bar. When the central heating is running, the pressure goes up to approx 1.2-1.3 Bar, but when the system is off, the pressure still drops to around 0.6Bar. Is this right, or is there a problem. Also still occ, the HW fails to kick the boiler on, until the central heating has been switched on, and also when the central heating has been on a while, the water is much hotter than when the HW and CH has just come on. Is this also a normal feature?? (sorry to sound a bit thick!!!) Could anyuone offer a little advice

Rgrds

Chris

 

[boxster]

pressure will rise when hot, if you fill the boiler it will drop, re-fill it to 1.5 bar then turn it back on again, it should be ok. the water needs to stablise but make sure you vent the rads

 

[oilman]

This sounds like you may have a leak in the pressure relief valve, or you may have a problem with the expansion vessel. Both of these should be checked.