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home Fix label Heating label_important Home Heating Systems

dont have user manual what is error code 04 ?

dont have the user manual and it reads error code o4 what would this tell me
ms mullaney, July 2009
home Fix label Heating label_important Home Heating Systemsdone
04: fatal error between operator and appliance.

t, July 2009
lets guess what boiler you have.
don't think so, go away.

andy pandy, July 2009

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