What F3 Means
F3 is a shorted oven temperature sensor on the classic Dacor ERC. The control needs 16 short-circuit readings in a row before it shows F3, and it only checks while a cooking operation is being attempted, which is why the code never appears while the display is just showing the time of day.
Common Causes of F3
- Oven sensor shorted
- Sensor lead pinched or melted against the cavity
🔧 One Safe Check You Can Try
Press Cancel. With the oven cool, check the sensor inside the cavity for damage. If F3 comes back the next time you start a cooking mode, leave the oven off.
⚠ Why You Shouldn't Go Further Than That
- The sensor connects behind the oven; testing and replacing it means pulling the oven out.
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.