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Mend Saunier Duval 30E Boiler Heating Repair

saunier duval 30e?

my saunier duval 30e boiler keeps losing pressure, i put preassure up to 1.5 bar and within 35-45 the pressure is at 0 and lock out comes. When i reset and put pressure up it does it again any thoughts?

mc
December 2010
Saunier DuvalSaunier Duval 30EHeating, Home Heating SystemsBoiler Heating Repair
mine was doing the same and the 3 way valve had to be replaced as the ones fitted to the original system had very poor seals fitted that corrode and let the water past. This replacement has stopped that problem but i think the seals in my pressure reducing zone valve are doing the same!!

kev
December 2010

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Saunier Duval 30E Boiler Losing Pressure - Help