Quick summary (TL;DR)

Maytag washer error code F21 points to a draining issue. Typically, your washer takes too long to drain, or something blocks water flow. You can often resolve this by checking the drain hose for clogs, cleaning the drain pump filter, and making sure you are not using too much detergent. If you still see the code after trying these DIY steps, it might be time to call in a professional for advanced diagnostics.

Understand the F21 code

When you see “F21,” your Maytag washer is telling you it is having trouble draining water from the drum. Your washer tracks how long it takes to pump water out and triggers this error if that time goes beyond a preset limit. Here are the most common signs:

Your machine stops mid-cycle and won’t advance to the spin stage.
You notice standing water in the drum.
The display flashes or beeps while showing F21.

This code typically indicates either a blockage in the drain system or a pump malfunction. If left unchecked, you risk mold growth or more expensive part failures. Addressing it promptly can help you avoid costly repairs.

Check the common triggers

You want to zero in on why your Maytag washer error code F21 appeared. Several issues can cause this code, so focus on these usual suspects.

Drain hose kinks or clogs

A twisted, bent, or clogged hose can restrict water flow enough to trigger F21. Heavy lint buildup or foreign objects like paper clips sometimes get stuck. It may be helpful to disconnect the hose, inspect its interior with a flashlight, and flush out any blockages.

Pump or filter blockages

Your drain pump pulls water from the drum and sends it into the drain hose. If it is jammed by small coins, baby socks, or debris, it will have trouble emptying water on time. Many models also have a small coin trap or a removable filter. A clogged filter starves the pump for water flow. Clearing the filter often solves the issue outright.

Excess suds or detergent overload

Using more detergent than recommended can produce excess suds, slowing the drain process. High-sudsing detergents can also trigger the error, so always check that you are using HE (High Efficiency) formulas in the right amounts. Too many bubbles can reduce pump efficiency, leading to F21.

Faulty or worn-out parts

In some cases, a defective drain pump motor or an electronic circuit board problem is to blame. If your drain pump has burnt windings or broken impeller blades, the washer may fail to drain quickly enough. Rarely, a control board glitch may misread drain times, but that is less common than a straightforward mechanical blockage.

Try these DIY fixes

Before you worry about major repairs, start with some simple checks. You might save money by tackling the cause yourself.

1. Power off and unplug

Turn off the machine and unplug it from the wall. This prevents any accidental electrical contact. Also, switch off the water supply valves if you plan to move the washer. Ensure you have towels handy, because you could see a little leftover water.

2. Inspect and clear the drain hose

Carefully slide the washer away from the wall to access the drain hose.
Check for kinks or crushed spots along the hose. Straighten it as needed.
Disconnect the hose from the washer’s back panel. Look inside for lint or hair clogs, and remove them with a flexible brush or running water.
Reattach the hose securely to the washer and the standpipe or utility sink.

3. Clean the drain pump filter

Many Maytag washer models include an access panel for the drain pump filter. If you are not sure where to find yours, consult your user manual. Once you remove the panel, be prepared for water to spill out.

Open the filter housing slowly.
Pull out the filter screen and remove any debris (coins, lint, hair ties, etc.).
Wipe down the area with a cloth.
Reinstall the filter and close the housing tightly.

4. Use correct detergent

Check the label on your detergent. If you are not using an HE formula, or if you have been pouring in more detergent than the cup lines suggest, cut back. Excess suds can trigger repeated F21 errors, so measure carefully. If you suspect built-up residue, consider running an empty cycle with hot water and a washing machine cleaner.

5. Run a test cycle

Plug your washer back in, turn the water supply on, and run a short or rinse cycle. Keep a close eye on the drainage stage. If the water drains normally and the cycle completes without error, you have likely fixed the issue. If the F21 code returns, move on to further checks or consider a professional opinion.

Know potential costs

If your washer is still showing Maytag washer error code F21, parts or advanced repairs might be required. Here’s a rough look at possible expenses:

Repair Type	Typical Cost Range (Estimate)
Drain hose replacement	$10–$25 for hose plus labor
Drain pump filter replacement	$10–$25 for filter (DIY often)
Drain pump assembly replacement	$90–$200 for parts plus labor
Control board repair	$150–$300 for board plus labor

Keep in mind these are general estimates. Labor rates in Central Indiana can vary, but they typically run between $70 and $150 per hour. If you catch a clogged filter early, you may only need a quick fix and avoid costlier pump or control board replacements.

When to call a professional

Even if you feel confident in your DIY skills, certain scenarios warrant professional intervention:

You have ruled out clogs or detergent overload, yet the code persists.
The washer’s pump makes loud grinding or vibrating noises.
The filter or pump housing shows signs of cracks or significant wear.
Your machine’s electronics or wiring harness might be damaged.

In these cases, hiring a qualified technician ensures you do not accidentally worsen the issue. If you are in Central Indiana, consider contacting Duncan Home Services for licensed, experienced washer repair. A reliable local pro will pinpoint the underlying malfunction and replace parts properly.

Related error codes to explore

Maytag washers sometimes show other codes similar to F21. If you see them, here are a few guides that might help you troubleshoot:

If you own a Whirlpool washer and notice a similar draining issue, you can check whirlpool washer error code f21 for model-specific insights.

Next steps to prevent repeat errors

Addressing F21 is only half the battle. You can reduce the chances of seeing that code again by following simple best practices:

Clean the drain pump filter at least every few months.
Avoid overloading the washer. Large loads hamper efficient draining.
Use only the recommended amount of laundry detergent. Verify it is an HE type.
Periodically inspect the drain hose for blockages or kinks.
Listen for unusual sounds. Squeaks or grinding might indicate early pump failure.

By paying attention to hints from your washer, you can head off bigger problems and keep your laundry routine running smoothly.

A little prevention goes a long way, and staying on top of basic maintenance helps you avoid surprise repairs. If you run into any hurdles or want a professional opinion, do not hesitate to reach out to a qualified technician. Your Maytag washer deserves the right care, and your time and money deserve the best possible fix.