What F3 (Oven Side) Means
On a Monogram range, F3 flags the same oven-cavity temperature-sensor fault as on a standalone Monogram wall oven — the electric oven side of the range has lost a reliable temperature reading and stops heating rather than risk overshooting.
Common Causes of F3 (Oven Side)
- Failed or drifting oven temperature sensor
- Damaged sensor wiring behind the oven cavity
- Control board misreading the sensor signal
🔧 One Safe Check You Can Try
If your range is dual-fuel, confirm the cooktop burners still ignite and work normally — since F3 is specific to the oven-side sensor circuit, a working cooktop with a non-heating oven is consistent with this exact fault.
⚠ Why You Shouldn't Go Further Than That
- The sensor sits inside the hot oven cavity, wired straight into the shared control board — probing it without disconnecting power risks a shock.
- A range's oven and cooktop share one control board on many models, so incorrect wiring work on the oven side can introduce a cooktop-side fault too.
- A sensor swapped without confirming the wiring harness first can leave the same code active after the part is replaced.
- Panel access behind the oven cavity typically involves disassembly that can affect your remaining parts coverage — check your terms first.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.