15.2.8Error 11
control unit error
check the interface
and the ribbon
cable between the control unit and the display
incorrect data will be detected in case of a poor connection between the control unit and the display or if the interface is incorrectly positioned. If necessary, replace the ribbon cable between these two components.
the error persists
after reset
software error
control unit
replace the control unit. The controller will automatically load the program into the new control unit.
Installation & Servicing Instructions Rinnai
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