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water pressure loss?

i have a glowworm fuelsaver complheat 55 441510
. I have water pressure loss from 1half bar to 0 in 2 hours.
can't find any water leaks,used fernox , replaced return valve , taken air out of the system and still I have the same problem.

marco, March 2008

home Fix label Heating label_important Home Heating Systemsdone

could it be the mid position valve as i have noticed it's not working .

marco, March 2008

you could be loosing it through your cylinder

gary.wright53@googlemail.com, March 2008

yes it's a sealed system. yes when it's cold or warm,i fill it up

marco, March 2008

Is yours a sealed system?
IS the 1/2 bar when system is cold?

T, March 2008

Fix Fault - Heating

home label Heating label_important Home Heating Systems

home Fix label Heating label_important Home Heating Systems

water pressure loss?

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water pressure loss?

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