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Mend Bosch Home Heating Systems

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Mend Bosch Pressure Cold Works Fine

worchester 240, pressure dial reads same hot or cold?

my worchester bosch 240, works fine, but for the pressure dial does not move from 2.9 weather central heating/water is on full and hot or off and cold , a trickle of water is expelled out side. tried red knob pressure release to bring it down , but goes back to same point and stays there all the time . tried also replacing regulator valve at the loop .

Graham Young
October 2009
BoschHeating, Home Heating SystemsPressure Cold Works Fine
if it's happening when it's cold, and the filling loop isn't passing then it's probably a burst calorifier (hot water heat exchanger)

Ian
October 2009
recharge you expansion vessell.drain water out leave blo off open,fix ordinary car foot pump to valve and pressurise to 1 bar.close valve topup with water

dave engineer fom wigan
October 2009
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