I searched the internet using
https://www.google.com and could not locate an error code of EO 29.
Without knowing the model number of the stove, I found error codes for a Kenmore 790 that may be for a similar condition.
https://www.searspartsdirect.com/diy/error-codes/range-repair/1234574/kenmore-790-model-4-digit-range/0582
Quoting: F028 or F029
Communication between the user interface board and the touch panel can't be initiated
Check/Repair
Disconnect power to the unit, wait 30 seconds and restore power. If the error returns, disconnect electrical power and check the wire harness connections between the user interface control board and the touch. Reconnect any loose wires or replace the wire harness if damaged. If you just replaced the user interface control board or the touch panel, you may have used the wrong part. Use your range model number to check the part number and install the correct replacement part. If you didn't replace a part before the code appeared and the wire harness connections are okay, replace the touch panel. If the problem continues, replace the user interface control board.
Possible parts
Touch panel, user interface board
Sears web site for parts replacement:
https://www.searspartsdirect.com/diy/repair-help