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Mend Saunier Duval GC47-920-52 Home Heating Systems

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Mend Saunier Duval GC47-920-52 Boiler Heating Repair

how do i fix my boiler,saunier duval gc47-920-52?

pressure keeps dropping low and turns itself off.when i top it up its ok but then the pressure goes right up and i have to release it.it happens once aday atleast.its 4 yr old and this has been going on every day for a month.how can i stop this?

JASON
January 2010
Saunier DuvalSaunier Duval GC47-920-52Heating, Home Heating SystemsBoiler Heating Repair
expansion vessel needs re-pressurised

Ian
January 2010

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