How to troubleshoot a Whirlpool oven?

To troubleshoot a Whirlpool oven that is not heating, not turning on, or showing error, follow systematic checks. First, check power: ensure oven plugged in, for electric models check both 120-volt legs of 240-volt breaker not tripped, test outlet with multimeter, for gas models ensure gas supply open and outlet powered. Second, check display and control lock: if display blank, power failure, perform hard reset by turning off breaker for 5 to 10 minutes, if control lock light on, press and hold Control Lock for 3 seconds. Third, check door: ensure door fully closed and latched, oven will not start if door not closed, inspect door gasket for tears. Fourth, check heating: for electric ovens, if not heating, inspect bake element at bottom for blistered or broken coil, test continuity with multimeter, replace at 20 to 60 dollars if no continuity. For gas ovens, if oven clicks but does not heat, igniter likely failed, it should glow bright orange, if dim, replace at 30 to 80 dollars. Fifth, check temperature sensor at back wall inside oven, test resistance at room temperature should be about 1080 ohms, replace if out of range. Sixth, check error codes: F1E0 indicates control board failure, F3E0 indicates sensor failure, look up code in manual. After troubleshooting, run empty bake at 350 degrees for 10 minutes. If still failing after reset and element check, control board may need professional replacement.