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Mend Firebird 90K Combi Heating System Pressure

Firebird combi 90K problem with hot water?

we have a problem when the bath is running, it appears to lose its' pressure and seems to produce both air and water. The boiler also hisses when this is occurring. Can anyone help?

David Carter
June 2012
FirebirdFirebird 90KHeating, Home Heating SystemsCombi Heating System Pressure
From what you say, I would think a leak somewhere. Lets in air when system is powered, But might find a drip some where at other times. check around the system

SD
June 2012

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Firebird 90K Combi - Hot Water Pressure Issue