When I switch my central heating on the water pressure keeps going u
and up when I switch it off it goes all the way down to 0,the HW work fine
-- foss
When I switch my central heating on the water pressure keeps going u
and up when I switch it off it goes all the way down to 0,the HW work fine
-- foss
See the SealedCH FAQ. Especially about the failed expansion vessel.
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