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Mend Baxi 105E Central Heating Pressure

baxi 105e pressure at zero in morning before system starts?

in morning, no preheat on or central heating and pressure at zero, after preheat turned up pressure increases. is it normal for pressure to be zero when system is off

dave
May 2009

Baxi Baxi 105E Heating, Home Heating Systems Baxi Central Heating Pressure

On my baxi 105e, the pressure remains above 1 unless water is being lost from the system.
Check to see if you have a slow leak at the back of the hot water diaphragm housing.

teryuh
May 2009

should be around 1 bar when cold

b
May 2009

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Baxi 105E Low Pressure - Common Issue?