Whirlpool · Oven
Whirlpool Oven F16 Error Code
Door latch switch failed in lock position
What this error means
F16 means the door latch switch reports locked when the ERC commanded unlock, or the lock switch failed to open after self-clean cooldown. The oven prevents starting a new cycle until latch position is verified.
How F16 is detected
When F16 appears on a Whirlpool oven, the control board has confirmed that water did not leave the machine within the programmed drain window. On Whirlpool WFE505W0BS, Whirlpool WFG505M0BS, and similar variants, the drain pump runs for a fixed interval—often three to seven minutes on washers and dishwashers—while a pressure switch or turbidity sensor verifies the tub or sump is empty. If water remains, the cycle stops to prevent spin with a full tub or overflow on the next fill.
Most F16 calls are resolved without parts: turn off power and wait for the oven to cool if recently self-cleaned. Restricted drain paths mimic pump failure because the impeller spins against a blocked hose or filter. Document whether the pump hums audibly during the drain step; a humming pump with no water movement points to a clogged filter or kinked hose, while silence may indicate a failed pump motor or loose wiring at the harness.
After clearing blockages, run a short cycle and listen at the drain hose for steady water flow. If F16 returns on the next load with a clean filter and straight hose, measure resistance at the pump motor connector per the service manual for your model before ordering a replacement pump assembly.
Common causes
- Latch switch stuck closed inside the motor assembly
- Broken latch cam not releasing the switch plunger
- Wiring short forcing the lock signal high
- Motor assembly stopped mid-travel after a power loss during lock
Step-by-step fixes
- 1Turn off power and wait for the oven to cool if recently self-cleaned
- 2Enter latch diagnostic mode and command lock/unlock—watch for full travel
- 3Test latch switch continuity at locked and unlocked positions
- 4Replace the door latch motor assembly if switches fail to toggle with manual cam movement
When to call a technician
A door that stays locked with F16 after cooldown needs service to manually release and replace the latch.
Affected models
- Whirlpool WFE505W0BS
- Whirlpool WFG505M0BS
- Whirlpool WGE745C0FS
Prevention & maintenance
- Clean drain filters and hose terminations monthly on high-use ovens to prevent F16 from lint and food debris buildup.
- Record when F16 appears in the cycle and whether it clears after a 60-second power reset on your Whirlpool oven—that detail speeds diagnosis if you call service.
- Keep the model and serial number from the rating plate when ordering parts for F16; Whirlpool uses multiple revisions with different harness lengths and board firmware.
- Photograph wiring connector orientation before disconnecting any component while troubleshooting F16; reversed plugs on pumps and valves cause immediate repeat faults.