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- 22 Feb 2006
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Hi
Losing pressure (mostly) when cold, about 10 psi overnight. Have changed rad TRV gland seals, a weeping motorised valve, pressure vessel, fitted two new AAVs, tried leak sealer and it's still as bad. Although the overflow outlet is bone dry, could it be the PRV? No visible water leaks anywhere.
Boiler's a Firebird S 90
Any ideas on the next step welcome.
Losing pressure (mostly) when cold, about 10 psi overnight. Have changed rad TRV gland seals, a weeping motorised valve, pressure vessel, fitted two new AAVs, tried leak sealer and it's still as bad. Although the overflow outlet is bone dry, could it be the PRV? No visible water leaks anywhere.
Boiler's a Firebird S 90
Any ideas on the next step welcome.