Whirlpool · Dryer
Whirlpool Dryer F01 Error Code
Main electronic control board failure
What this error means
F01 means the dryer's main electronic control board failed its self-check or stopped responding. On Duet HE models the board manages heat, motor, and moisture sensing—when it faults, the dryer may not start or may stop mid-cycle.
How F01 is detected
When F01 appears on a Whirlpool dryer, the control board has confirmed that water did not leave the machine within the programmed drain window. On Whirlpool WED5620HW, Whirlpool WED6600MW, 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 F01 calls are resolved without parts: turn off the dryer circuit breaker for ten minutes, then restore power. 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 F01 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
- Power surge damaging ERC memory or processor
- Loose wire harness at the main control connector
- Failed relay on the control board heat circuit
- Moisture intrusion behind the console from a vent leak
Step-by-step fixes
- 1Turn off the dryer circuit breaker for ten minutes, then restore power
- 2Start a timed dry cycle and watch whether F01 reappears within one minute
- 3Check that the power cord terminal block screws are tight at the rear
- 4If F01 returns immediately at power-up, the main control board needs replacement
When to call a technician
Control board replacement on gas dryers also requires verifying gas valve wiring—have a technician install the correct board for your model.
Affected models
- Whirlpool WED5620HW
- Whirlpool WED6600MW
- Whirlpool WGD5620HW
Prevention & maintenance
- Clean drain filters and hose terminations monthly on high-use dryers to prevent F01 from lint and food debris buildup.
- Record when F01 appears in the cycle and whether it clears after a 60-second power reset on your Whirlpool dryer—that detail speeds diagnosis if you call service.
- Keep the model and serial number from the rating plate when ordering parts for F01; Whirlpool uses multiple revisions with different harness lengths and board firmware.
- Photograph wiring connector orientation before disconnecting any component while troubleshooting F01; reversed plugs on pumps and valves cause immediate repeat faults.