Washer Not Draining? Drain Pump W11790873 – Fix F21 / F9E1 Error and Standing Water Fast

If your front-load washer won't drain, leaves standing water in the drum, or displays an F21 or F9E1 error code, a failed drain pump is the most common cause. In Whirlpool, Maytag, and Amana front-load washers, the drain pump forces water out of the tub at the end of each cycle — when it fails, water remains in the drum, the spin cycle is skipped, and clothes come out soaking wet. ⚡ High-failure component in Whirlpool-built front-load washers. Part W11790873 is the OEM replacement drain pump assembly that restores full drainage and spin function immediately.

❓ Is This the Right Part?

This is the correct fix if ALL of the following are true:

• ✔ Your washer powers on and the cycle starts normally
• ✔ The washer fills with water and agitates correctly
• ✔ The drain hose is not kinked, clogged, or improperly routed
• ✔ The pump filter/coin trap has been cleaned and is clear of debris
• ✔ ONLY problem is water remaining in the drum, no drain, or F21/F9E1 error code

Not sure? Send us your model number — we'll confirm before you order.

🔧 Common Symptoms

• Washer won't drain — standing water remains in drum after cycle ends
• F21 or F9E1 error code displayed on the control panel
• Washer stops mid-cycle with water in the tub
• Clothes come out soaking wet — spin cycle skipped due to drain failure
• Loud humming or grinding noise from the bottom of the washer during drain phase
• Pump runs but water drains very slowly or not at all

✔ If these symptoms match, the drain pump is the most likely failed component in the system.

✔ In most cases, replacing this drain pump restores full drainage and spin immediately.

📦 Part Details

• Part Number: W11790873
• Type: Washer drain pump assembly — complete motor and pump housing
• Replaces: OEM direct-fit drain pump assembly (no modification required)
• Brands: Whirlpool, Maytag, Amana, and Whirlpool-built front-load washers

⚙️ Installation

Skill Level: MODERATE — 30–45 minutes. Unplug the washer and turn off the water supply before beginning. Tilt the washer back or lay it on its side to access the pump from the bottom front panel. Disconnect the wiring harness and hose clamps, swap in the new W11790873, and reassemble in reverse. Have towels ready — residual water will spill when the pump hoses are disconnected.

💡 Pro Tip

Model hub pages: Contact us with your model number to be linked to your model-specific parts page.