Buderus 600 - 11R Installation And Servicing Instructions page 54

5 Servicing
Code Meaning
9U
KIM defective
Possible
cause
1 Kim connected incorrectly or KIM defective
Code Meaning
E with
UBA defective
any
character
but P
Possible
cause
1 Regulating device may have to cope with interference
2 UBA may be defective
Code Meaning
EP
Non compatible UBA fitted
Possible
cause
1 Regulating device may have to cope with interference
2 Kim connected incorrectly or KIM defective
: No heating, despite that there is a demand for heat and the boiler is operational
Problem
– Check regulating device configuration and/ or the wiring
– Check the wiring between the regulating device and the UBA (see subsection 5.3.6)
– Check all the wiring
– Check the UBA and replace if necessary (see subsection 5.3.3)
Buderus • http://www.buderus-domestic.co.uk
54 Installation and servicing instructions for wall-mounted condensing gas boiler Buderus 600 - 11R/19R/24R • 02/2006
Action
Check the KIM connector and fan connector.
If the connectors are fine then contact the technical
support of Buderus
Action
– Check if for example induction fields interfere with the
regulating device
– Check if the are any peaks in the electrical network
– Press reset. If fault code remains then try to temporarily
connect a different UBA (see subsection 5.3.3)
Action
– Check if for example induction fields interfere with the
regulating device
– Check if the are any peaks in the electrical network
– Check the KIM connector and fan connector. If the
connectors are fine then contact the technical support of
Buderus
Subject to modifications resulting from technical improvements!