Monogram Oven Error F3
⚡ Quick Answer: The Monogram oven F3 error code indicates a malfunction in the temperature sensor (RTD), which can lead to inconsistent heating or the oven failing to... ✅ DIY Fixable
What Does Error F3 Mean?
The Monogram oven F3 error code indicates a malfunction in the temperature sensor (RTD), which can lead to inconsistent heating or the oven failing to heat altogether. This may occur due to an open or shorted sensor, damaged wiring, or issues with the control board's sensor input circuit. If you encounter this error, you may notice the oven shutting off unexpectedly or displaying the error during use.
Common Symptoms:
- Oven fails to heat properly
- Error appears on display when starting or during heating
- Oven may shut off shortly after starting
Possible Causes
- Open or shorted oven temperature sensor (RTD) (medium)
- Damaged or loose sensor wiring or connector (medium)
- Control board sensor input circuit fault (low)
How to Fix Error F3
DIY Fix Basic preliminary checks
- Power off the oven and disconnect from power source.
- Visually inspect the oven temperature sensor located inside the oven cavity for obvious damage.
- Check that wiring connections between the sensor and control board are secure and free from corrosion.
Technician Only Test and replace faulty sensor or repair wiring
- Disconnect oven power and access temperature sensor and wiring harness.
- Measure resistance of the oven temperature sensor with a multimeter; compare to expected values (typically ~1080 ohms at room temperature).
- If sensor shows open or out-of-spec resistance, replace it with correct RTD sensor for model.
- If sensor is good, test continuity of wiring harness and repair any breaks or corrosion.
- If wiring and sensor both test good yet F3 persists, test control board sensor input circuit and replace control board if necessary.
Parts needed: Oven temperature sensor (RTD), Wiring harness, Control board (if needed)
- If you are uncomfortable working with electrical components
- If initial diagnostic tests (sensor and wiring) do not resolve error
- If control board replacement is suspected
Next step
Choose the next step for F3
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Most relevant component to inspect
Temperature Sensor
Monitors the internal temperature to ensure correct operation and prevent overheating.
- Typical part-only price
- $15 - $35
- DIY difficulty
- Easy
- Estimated time
- 15-30 mins
Where can I find the model number?
Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.
Verify the complete model and part number on the retailer's compatibility page before ordering.
Other parts options
Check related components first; use model search as a fallback.
Wiring Harness
Connects controls, sensors, motors, and other electrical components inside the appliance.
Main Control Board
The central brain of the appliance that controls all components, cycles, and timings.
Model-compatible Oven parts
Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. We may earn a commission from other qualifying purchases or service requests made through links on this page, at no additional cost to you. Recommendations are based on repair relevance, not commission rate.
Optional routine care
Maintenance supplies
These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.
Non-Scratch Cooktop Cleaner
A routine surface-care product. Confirm that it is approved for the specific glass, ceramic, enamel, or stainless finish.
Oven Thermometer
A diagnostic aid for comparing cavity temperature during a controlled check. It does not prove which internal component has failed.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.
Technical Specifications
| wattage | |
|---|---|
| component | Temperature Sensor |
| resistance | 1000-1100 ohms |
| part_number | WB21X5301 |
| voltage_rating | 120V AC |
Common Questions
What does F3 error mean on monogram oven?
The F3 error indicates a malfunction in the temperature sensor, causing heating issues.
Can I fix monogram oven F3 error myself?
Yes, you can check the temperature sensor and wiring connections for damage or corrosion.
How much does it cost to fix F3 error?
Repair costs for the F3 error range from $40 to $300+, depending on parts and labor.
When should I call a technician for F3?
Call a technician if you're uncomfortable with electrical work or if initial checks don't resolve the issue.
Data last verified: 2026-07-25
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