Dacor HWO230PS Heritage Wall Oven F2 Error Fix: Heating Mode Over-Temperature

Error code F2 on the Dacor HWO230PS Heritage Wall Oven means: Heating Mode Over-Temperature. The ERC has detected a runaway heat condition — the oven temperature has exceeded the programmed limit or the "runaway temperature" safety threshold. The ERC will beep until Cancel or another function is selected. If the alarm repeats the F2 code, check the oven temperature sensor (RTD) and its wiring. First check for a stuck relay on the control board that could keep the heating element energized continuously. Verify the oven completes a self-clean cycle without failure. A shorted relay is the most dangerous condition as it can cause a fire.

The most successful fix is "Test and Replace Oven Temperature Sensor and Control Board Relay" (hard difficulty, ~90 minutes). Estimated DIY cost: $15-$25. HomeMD has 2 community-ranked fixes for this error.

This error is rated critical severity. It is generally not urgent and can often be resolved with a simple DIY fix.

Yes — the top-ranked community fix ("Test and Replace Oven Temperature Sensor and Control Board Relay") is rated hard difficulty and takes about 90 minutes. Tools needed: T20 Torx screwdriver, Digital multimeter, Needle-nose pliers.

DIY cost: $15-$25. Professional repair typically costs $200-$350. Many homeowners save money by trying the top-ranked community fix first.

The Dacor HWO230PS Heritage Wall Oven has 8 other known error codes, including: F0 (Function Key Stuck), F1 (System Watchdog Circuit Fault), F3 (Shorted Oven Temperature Sensor (RTD)), F4 (Open Oven Temperature Sensor (RTD)), F7 (Door Lock Enabled Above Temperature), and 3 more.

Error code F2 also appears on 5 other Dacor models: DOB30M977DS 30 in 4.8 cu ft True Convection Wall Oven with WiFi, DOC30M977DS 30 in 4.8 cu ft Combination Wall Oven with Microwave and True Convection, DOP48M96DPS 48 in 6 Burner 5.5 cu ft 18,000 BTU Modernist Dual Fuel Range, DP36M96NDS Pro 36" Dual Fuel, ER30DSCH Distinctive Dual-Fuel Range. The fix may vary by model, so check each model's specific page for tailored repair steps.