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Thermador®
S, SM, AND SMW Oven Error Code Messages…continued
Error Code
Displayed
Probable Cause
Example
Corrective Action
F4
Shorted Oven Sensor Or Temperature
At Sensor Below 40 Degrees F.
Short In Oven Sensor
Wiring
Check Oven Sensor Wiring. Should read 1050
ohms when measured from molex plug on
main power/relay board at room temperature.
See note 3.
F5
Element Supervisor Is disabled
(Single Or Upper Oven)
On Single ovens including the SM,
and SMW models the harness
connector from the display head,
which should be on J2, is plugged into
J7.
Intermittent Sensor Or
Main power/relay
board
Possible Miss-Wire
Check oven sensor wiring.
See note 3. If new sensor still displays F5
replace main power/relay board.
Check that the male pin connections on the
board match the female connector plug on the
harness.
F7
The control is reading a shorted key.
Possible bad connection due to wiring
harness to the touch control board or a
bad touch control board.
Connection between
control head and touch
panel
Replace control head kit, if persists replace
touch panel. See notes 1 & 4.
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