Maytag Dishwasher Not Draining — What’s Happening
When your Maytag dishwasher won’t drain, water pools at the bottom of the tub after a cycle finishes. You might see the F9 E1 error code on the display, which means the control board tried to drain but the water level didn’t drop within 60 to 90 seconds. The cycle may stop mid-run, or the dishwasher may refuse to start a new wash until the standing water clears.
This happens because something is blocking the water flow or the drain pump itself has failed. The control expects the pump to evacuate water quickly, and when it detects no progress, it shuts down and throws the error. Most of the time, the fix involves clearing a physical obstruction rather than replacing electrical parts.
Most Likely Causes
- Clogged drain hose or air gap Food debris, kinks in the hose, or buildup in the air gap cylinder near the sink account for about half of all no-drain complaints.
- Clogged filter assembly The filter cage at the bottom of the tub traps food particles and can block the pump intake if not cleaned regularly.
- Garbage disposal blockage or knockout plug If the dishwasher drains into a disposal, a clogged unit or a knockout plug left in the inlet port prevents water from exiting.
- Failed drain pump motor The pump motor windings burn out, the impeller jams, or the motor stops receiving voltage from the control board.
- Stuck or clogged check valve A small rubber flapper inside the pump or hose assembly may be stuck open or blocked, preventing proper suction.
- Control board not sending power The board fails to deliver 120V to the pump during the drain cycle, though this is less common and usually diagnosed after mechanical checks.
How to Diagnose and Fix
- Turn off the water supply and disconnect power at the breaker, then remove standing water from the tub using towels or a cup.
- Pull out the bottom rack and remove the filter assembly by unscrewing or lifting the cage, then rinse it under running water and scrub off any debris with a toothbrush.
- Disconnect the drain hose from both the pump outlet and the sink or disposal connection, then flush it with a garden hose or high-pressure water to clear internal clogs and straighten any kinks.
- Locate the air gap cylinder near the sink (if present), remove the cap, and clean out any buildup or debris inside the chamber.
- If the dishwasher drains into a garbage disposal, run the disposal to clear blockages and confirm the knockout plug was removed from the disposal inlet port.
- Access the drain pump by removing the lower panel or tip the dishwasher back, then disconnect the pump wires and set your multimeter to ohms to measure resistance across the motor terminals (you should read 15 to 40 ohms; infinite or zero means the motor is bad).
- Reconnect the pump wires, set your multimeter to AC volts, start a drain cycle, and measure voltage at the pump connector (you should see approximately 120V; zero volts means the control board is not sending power).
- Inspect the check valve (a small rubber flapper near the pump or in the hose) by blowing air through it to confirm it opens and closes freely, then remove any debris if it sticks.
Parts You Might Need
| Part | Notes |
|---|---|
| Drain pump motor | Amazon | Measures 15 to 40 ohms across terminals when good; replace if continuity test shows open or short circuit. |
| Drain hose | Amazon | Replace if cracked, permanently kinked, or interior walls have collapsed. |
| Control board | Amazon | Only replace if pump tests good but board delivers no voltage during drain cycle. |
Related Error Codes
If your appliance also shows a code on the display, these match this problem:
- Maytag Dishwasher E1 error code
- Maytag Dishwasher E15 error code
- Maytag Dishwasher E3 error code
- Maytag Dishwasher E4 error code
- Maytag Dishwasher E6 error code
- Maytag Dishwasher E7 error code
- Maytag Dishwasher F10E5 error code
- Maytag Dishwasher F1E1 error code
- Maytag Dishwasher F2E2 error code
- Maytag Dishwasher F3E2 error code
- Maytag Dishwasher F4E3 error code
- Maytag Dishwasher F6E1 error code
When to Call a Pro
If you’ve cleaned the filter, hose, and air gap but the dishwasher still won’t drain, call a technician to test the pump and control board with proper diagnostic tools. Voltage testing at the pump requires working near live 120V circuits, which can be dangerous without training. A pro can also diagnose intermittent wiring faults or check-valve failures that are hard to spot during a visual inspection. If the control board needs replacement, a tech will program and install the correct part for your model.