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Mend Worcester Bosch 280 Home Heating Systems

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Mend Worcester Bosch 280 Boiler Heating Pressure

why is my Worcester Bosch combi boiler losing ressure all the time the heat?

why is my Worcester Bosch combi 280 boiler losing presssure. it is fine when the heating is on but when it is turned off the pressure drops to zero. I am continually filling it up.

Liz Lancaster
December 2007
Worcester BoschWorcester Bosch 280Heating, Home Heating SystemsBoiler Heating Pressure
sounds like faulty exp vess and possibly dumping water out prv

steve
December 2007
I am assuming you mean water pressure.
When you top the system pressure up when cold does it lose that pressure before you put the heating on? If not then it sounds like the expansion vessel has gone if it does then you have a leak somewhere

Pip
December 2007

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