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Buderus GB boiler, 9U error code, solid red light on UBA any help?
tim smith
Member Posts: 2,807
Wont come out of 9u error, even tried new UBA still wont come out. Checked and cleaned all molex/polarized plug connections. Rrrrrr, frustrating. Was too late yesterday afternoon to get a hold of tech support. Any input appreciated guys.
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Comments
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Went online and found fault code 9U is defective KIM. Service manual link. Map for 9U page 41.
Wiring to gas-valve assembly incorrect,
or loose wiring connections in UBA. See if the map can help.
http://www.buderus.co.uk/files/201105251603540.BUD__Range_Servicing_Manual____kW_System__kW_Combi.pdf0 -
Sorry Tim I did not see the 2nd posting. I see your already are on the map.
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thanks guys for your help, ended up even though UBA was seated all the way in sub base, some times the KIM card does not seat all the way in UBA due to it pushes too far back into the sub base holder. They say pull kim card out of sub base and insert into UBA before mounting UBA to base. Go figure? Local tech rep for Buderus had not heard of that?0
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