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Thermador®
C, CM and CJ Oven Error Code Messages…continued
Error Code
Displayed
Probable Cause
Example
Corrective Action
“F19”
Miscellaneous
Power/Relay Board Error.
Power/Relay Board.
Check all connections between the power/relay board and the
Control display PCB. If OK, replace power/relay board.
“F20”
Upper Oven Cancel Key
Shorted High.
Control Display PCB
Or Touch Panel.
Check all connections between the control display PCB and
the touch panel. Replace control display PCB or touch panel
or both.
“F21”
Lower Oven Cancel Key
Shorted High.
Control Display PCB
Panel.
Check all connections between the control display PCB and
touch panel. Replace control display PCB or touch panel or
both.
“F22”
Upper Oven Cancel Key
Shorted Low.
Control Display PCB
Or Touch Panel.
Check all connections between the control display PCB and
the touch panel. Replace control display PCB or touch panel
or both.
“F23”
Lower Oven Cancel Key
Shorted Low.
Control Display PCB
Or Touch Panel.
Check all connections between the control display PCB and
the touch panel. Replace control display PCB or touch panel
or both.
“F24” Touch Input Key Stuck.
Control Display PCB
Or Touch Panel.
Check all connections between the control display PCB and
the touch panel. Make sure that there are no objects in close
Proximity to the front and back sides of the touch panel pads.
Replace control display PCB, if persists replace touch panel.
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