Dacor Range F4 Error: Broil burner circuit fault
This dacor range f4 error code guide explains what this fault means for your Dacor appliance and how to respond safely. What F4 Means on a Dacor Range F4 indicates a fault in the broil burner circuit. The oven cannot establish or sustain broil ignition. Bake and surface burner functions typically remain operational. Most Likely […]
~25%
DIY Fixable
From $200
Typical Repair Cost
60-90 min
Pro Repair Time
Quick Assessment
Answer to continue safely
Is it safe to keep using?
Maybe. The range oven heats but temperature accuracy is compromised. Use an oven thermometer to monitor.
Can I reset the code?
Yes. Reseating the sensor connector may resolve intermittent F4 faults.
When to stop immediately?
Stop if you notice: Avoid using the broil function until the fault is diagnosed, If you smell gas when attempting broil, turn off the gas supply immediately and ventilate the kitchen.
Symptoms You May Notice
Broil element does not ignite
Selecting broil mode produces clicking from the igniter but the broil burner never lights. After several failed attempts, the board displays F4.
Weak or partial flame at the broil burner
The broil burner ignites but produces a small, uneven flame that does not spread across the full burner tube, then extinguishes after a few seconds.
Repeated clicking sound with no flame
The spark igniter fires continuously for 30 to 60 seconds while the gas valve opens, but the burner never catches. The board eventually aborts and shows F4.
Gas smell without successful ignition
A brief gas odor is noticeable near the range each time broil is attempted, indicating the gas valve opens but the ignition system fails to light the gas.
Possible Causes
Failed hot-surface igniter
The silicon carbide igniter does not draw enough current to open the gas valve safety mechanism. Igniters weaken over time and fail to reach the 3.2-amp threshold required on Dacor Heritage gas ranges.
Requires ProfessionalFaulty gas safety valve
The bimetal safety valve in the broil gas line does not open even when the igniter is drawing sufficient current. The valve solenoid coils may have failed.
Requires ProfessionalLoose or corroded igniter wiring
The wire connector between the igniter and the control board has oxidized or vibrated loose, reducing current flow below the valve-opening threshold.
DIY PossibleSafe Checks You Can Do
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1
Observe igniter glow intensity
Remove the broiler pan and look into the broil burner area. Start a broil cycle and watch the igniter through the oven opening. It should glow bright orange within 30 seconds.
A dim, cherry-red glow instead of bright orange means the igniter is weak and not drawing enough current to open the gas valve.
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2
Verify gas supply to the range
Check that the gas shutoff valve behind the range is fully open. Test a cooktop burner to confirm gas is flowing to the appliance.
If cooktop burners light normally but the broil does not, the issue is isolated to the broil circuit rather than the gas supply.
When to Call a Professional
Contact a qualified technician if:
- Broil igniter glows but does not open the gas valve — igniter amperage is too low and it needs replacement
- Burner tube is cracked or corroded — component replacement required
- Wiring continuity tests good but F4 persists — control board relay needs replacement
Need Professional Help?
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