Whirlpool F21 error code
Washer
Whirlpool error code F21 on a washer means: Long drain — water not draining in time. This guide walks you through the most common causes, step-by-step troubleshooting, and replacement parts that typically resolve F21 on Whirlpool washers.
Buy the replacement part
MPN: W10876600
$37.99
MPN: W10810403
$34.99
Safe to keep using?
Use caution
This issue may worsen during use — limit operation and address promptly.
- • Turn off the water supply before disconnecting hoses.
Likely causes
Many codes resolve with cleaning, resetting, or reconnecting.
Check: Power-cycle the appliance and check for obvious blockages or loose connections.
Est. cost: $0–$0
Wear or electrical failure of an internal part.
Check: If basic checks fail, the faulty component likely needs replacement.
Est. cost: $0–$75
What it means
Long drain — water not draining in time.
How to fix it
- Unplug the washer or turn off power at the breaker before inspecting any components.
- Confirm the error code F21 is still displayed after a power reset — hold power for 10 seconds, then restart.
- Check the most common cause for F21: Long drain — water not draining in time.
- Inspect hoses, connections, and visible wiring for damage, clogs, or loose fittings.
- If basic checks don't clear the code, the fix often requires a replacement part (see recommended parts below).
- Reassemble, restore power, and run a test cycle. If F21 returns, the faulty component likely needs replacement.
Call a pro when: Call a technician if you smell burning, see sparking, hear grinding from the motor, or the code returns after replacing the suspected part.
Repair videos
FAQ
What does Whirlpool F21 mean?
Long drain — water not draining in time.
Can I fix Whirlpool error F21 myself?
Many F21 errors can be fixed DIY if you're comfortable with basic tools. Start with the steps above. If the issue involves electrical components or the code returns after replacing parts, call a professional.
Do I need a replacement part for F21?
Often yes — error F21 frequently points to a failed component. Check the recommended parts below for direct replacements.
Other Whirlpool Washer codes
Prevent this problem next time
- Follow manufacturer maintenance schedule
- Address small issues before they worsen
Sources
Manufacturer meaning
Long drain — water not draining in time.
FixApplianceCode guidance
Start with basic checks for Whirlpool F21 before ordering parts.
Source type: Part database
Source: ModelPartFinder + FixApplianceCode editorial
Last reviewed: 2026-08-07
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