Frigidaire Dishwasher: Replacing Drain Pump Motor

Bottom line: A Frigidaire dishwasher that will not drain — leaving standing water and often humming during the drain phase — usually has a jammed or dead drain pump motor. Before ordering the part, rule out the filter and hose; the whole job runs an intermediate 30-40 minutes.

Disconnect power at the circuit breaker. The drain pump motor operates on 120V AC through the control board. Never reach under the dishwasher with power connected. Remove standing water from the tub before working to minimize spill when the pump is disconnected.

Tools and parts#

Step by step#

1. Confirm the pump is at fault#

Lift out the flat mesh filter by its center handle, clear all food debris, and check the well for objects. Inspect the drain hose to the disposal for kinks or clogs. Start a cycle, cancel at the drain, and listen: silence means a dead motor, a hum means a jammed impeller.

2. Bail out the standing water#

Remove as much water from the tub as you can with a cup and towels or a wet-dry vacuum, since less water in the sump means less spillage when you disconnect the pump. Lay towels and a shallow pan under the front.

3. Remove the lower access panel#

Take out the two Phillips screws holding the kick plate at the bottom, pull the panel forward, and set it aside.

4. Identify the drain pump#

Underneath you will see two pumps: the larger circulation pump in the center that drives the spray arms, and the smaller drain pump on the left connected to the drain hose. The drain pump motor (5304497818) is the smaller cylindrical one.

5. Disconnect the electrical connector#

The drain pump has a 2-wire connector. Photograph its orientation, press the locking tab, and pull the connector straight off the terminals.

6. Disconnect the drain hose#

The pump outlet joins the drain hose with a spring or screw clamp. Squeeze the clamp with pliers, slide it off the nipple, and pull the hose free, directing the water that drains out into your pan.

7. Remove the pump from the sump#

Most Frigidaire pumps are twist-lock: rotate the body about 30 degrees counter-clockwise to release the bayonet mount and pull straight down. Some use two or three screws instead — remove them and drop the pump out.

8. Clear debris from the sump opening#

Before fitting the new pump, inspect the sump opening for glass shards, bones, or fruit pits — exactly the hard debris that jams an impeller and kills a pump. Clean the filter well too, and check the mesh filter for a tear that let debris through.

9. Install the new pump#

Fit the new O-ring or gasket, then set the pump into the sump — align the bayonet tabs and rotate clockwise until it locks, or align and evenly tighten the screws. Reconnect the drain hose to the outlet and slide the clamp back over the joint.

10. Test the new pump#

Restore water and power and run a Normal cycle through its first drain, listening for smooth operation with no grinding or buzzing. Check underneath for leaks at the pump-to-sump joint and the hose clamp, and confirm the tub is dry at the end.

If it still won't drain#

• Hums but no flow: the impeller is jammed or broken; the sealed pump chamber is not serviceable, so replace the assembly.
• Leaks at the sump: the O-ring is pinched or missing — reseat it and confirm the twist-lock is fully home.
• Debris keeps returning: a torn mesh filter is letting particles reach the pump; replace the filter.

When to call a pro#

If the pump keeps jamming despite a clean sump, there may be a deeper drain-path fault worth a technician. See our dishwasher repair cost guide or book a same-day repair.