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Error code reference
Hardwick Oven Error Code F7E4
Conductivity sensor not connected.
SourceHardwick Range - Tech Sheet - 8304549A: J-446p. 6
Diagnostic procedure
The full F7E4 procedure
Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.
MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check P9 connector on user interface and connector on conductivity sensor are fully inserted; inspect 4 wires between P9-1, 3, 5, 6 on UI and pin 1, 2, 3, 4 on conductivity sensor.
SourceHardwick Range - Tech Sheet - 8304549A: J-446p. 6
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Where this code is documented
2 manuals in the MyPros+ library document this code for Hardwick oven.
Models covered by the manuals that document this code
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