What does GE Dishwasher Sump Seal Replacement - Signs & How-To mean?

Water pooling under your GE dishwasher from the center sump area means the sump seal or gasket has failed. Replacing the sump assembly or sump gasket stops the leak.

How do I fix GE Dishwasher Sump Seal Replacement - Signs & How-To?

Work through the step-by-step fix below. Start with the quick reset and the most common cause, then check the specific part this guide points to. Most fixes need only basic hand tools and the right replacement part.

Can I keep using my GE appliance with this error showing?

Usually not. GE appliances show this error when a part or safety circuit is out of range, so running it can stop the cycle or make the problem worse. Diagnose and clear the error before normal use.

What part is most commonly replaced for GE Dishwasher Sump Seal Replacement - Signs & How-To?

The parts that most often fix GE Dishwasher Sump Seal Replacement - Signs & How-To are listed in the parts section of this guide. Match the part to your exact model and serial number before you buy.

Is GE Dishwasher Sump Seal Replacement - Signs & How-To a DIY repair or do I need a technician?

Many fixes are DIY-friendly with basic tools, such as door switches, drain pumps, water inlet valves, thermostats, heating elements, and filters. Sealed-system, refrigerant, gas, or high-voltage work should go to a licensed technician for safety.

GE Dishwasher Sump Seal Replacement - Signs & How-To

GE Dishwasher Sump Seal Replacement — What This Part Does

The sump assembly sits under the dishwasher tub and collects water for circulation through the pump and spray arms. A floating seal or sump gasket forms a watertight barrier where the sump attaches to the tub opening and connects to the pump. Over time, this seal can harden, flatten, or crack from heat, detergent exposure, and repeated wash cycles.

When the seal fails, wash water leaks out of the sump-to-tub joint during fill, wash, or drain cycles. Debris or mineral buildup on the sealing surfaces, improper seating after prior repairs, or a cracked sump housing can also cause leaks. Replacing the gasket or sump assembly restores the watertight seal and stops water from escaping the dishwasher cabinet.

Jump to Replacement Steps

Signs It Needs Replacing

Water pooling under the dishwasher center You see water collecting directly beneath the machine or near the front center after a wash cycle, not from hose connections or door seals.
Moisture visible around the sump area during operation Water appears at the sump perimeter or tub opening while the dishwasher is running a fill or wash cycle.
Leak worsens during wash or drain The leak is most visible when the pump is circulating water or draining, indicating a seal failure at the sump-to-tub or pump-to-sump connection.
Water damage or corrosion on the sump housing You notice rust, mineral deposits, or warping on the sump assembly or tub opening from long-term leak exposure.
Old seal is visibly flattened or cracked During inspection, the existing sump gasket or floating seal shows cuts, permanent compression, or distortion that prevents a tight seal.
Leak appeared after recent service Water started leaking from the sump area after someone replaced the pump or worked on the sump assembly, suggesting the seal was not seated properly during reassembly.

How to Replace It

Unplug the dishwasher from the wall outlet or shut off power at the breaker, then turn off the water supply valve under the sink or at the dishwasher connection.
Remove the lower dish rack and unscrew or unclip any spray arm assemblies and filter housing to access the sump area at the bottom of the tub.
Release the sump retaining latches or clamps around the perimeter of the sump (usually 4 to 6 locks) and carefully pull the sump assembly down and out from the tub opening.
Disconnect any attached hoses, drain connections, or wiring harnesses from the sump and pump assembly, noting their positions for reinstallation.
Remove the old floating seal or sump gasket from the sump assembly or tub opening, then clean both mating surfaces thoroughly with a damp cloth to remove mineral deposits, debris, or old gasket material.
Install the new sump gasket or floating seal into the sump groove with the correct orientation (some techs use a small amount of dish soap as lubricant to help seat the seal fully without twisting or folding).
Align the sump assembly with the tub opening and press it up into place, then rotate or lock each retaining latch or clamp until the sump is secure and the seal is fully compressed.
Reconnect all hoses, drain lines, and wiring, then reinstall the filter housing and spray arm assemblies.
Restore power and water, then run a short fill and wash test cycle while inspecting the sump area for any signs of leaking before returning the dishwasher to normal use.

The Part You Need

Part	Notes
GE dishwasher sump assembly	Amazon \| Part WD19X25490 fits some GE models. Check your model and serial number on the door frame or tub edge to find the correct sump assembly for your dishwasher.
GE dishwasher sump gasket / manifold seal	Amazon \| Part WD08X22758 is a genuine GE sump gasket. Verify fit by entering your model number from the rating plate on the dishwasher door or inner tub.
GE sump overmold and gasket assembly	Amazon \| Part WD19X28199 includes the sump overmold and gasket. Confirm compatibility using the model and serial tag located on the dishwasher door frame.

If this part is failing you may also see one of these codes:

When to Call a Pro

If you are uncomfortable working under the dishwasher, disconnecting multiple hoses and wiring, or diagnosing whether the leak is coming from the sump seal versus a cracked housing or failed pump connection, call a qualified appliance tech. Also call a pro if the sump assembly is warped or damaged, if you cannot locate or release the retaining latches, or if the leak persists after installing a new seal and you suspect a cracked tub or internal manifold failure.