GE Dishwasher Error Code E8 — What It Means & How to Fix It

What Does This Error Mean?

E8 on a GE dishwasher means the diverter valve has a fault. The diverter controls which spray arms receive water during the wash cycle. When it fails, the dishwasher cannot direct water correctly and stops the cycle.

Affected Models

GE Built-In Dishwasher
GE Profile Dishwasher
GE Top Control Dishwasher
GE Stainless Steel Dishwasher

Common Causes

The diverter valve motor has failed and cannot switch water between spray arms
The diverter position micro switch is defective and sending wrong signals to the control board
Food debris or broken glass has jammed the diverter valve mechanism
A loose or corroded wire harness connection to the diverter assembly
The main control board has failed and is misreading the diverter position signal

How to Fix It

Turn off the dishwasher at the circuit breaker for 5 minutes, then restore power and run a test cycle.

A brief control board glitch can trigger E8. A full power reset is always the first step.
Remove the lower dish rack and inspect the bottom of the tub for debris — broken glass, food particles, or a fallen utensil near the diverter area.

Any object lodged near the diverter valve can physically jam it and cause E8.
Remove the lower spray arm (unscrew or pull straight up) and clean it under running water. Inspect the spray arm hub and the area around the diverter below it.

Mineral buildup around the spray arm hub can restrict the diverter's movement.
Locate the diverter valve in the sump area. Check that it moves freely. If stiff, clean around it with warm water and a soft brush.

The diverter should rotate without resistance. Stiffness points to debris or a seized motor.
Check the wire connector on the diverter motor and position switch. Unplug and firmly reseat it.

A loose connector pin on the diverter harness is a common cause of persistent E8.
If E8 returns after all cleaning and reconnection, the diverter motor or position switch has failed. Order the diverter assembly by your model number (label inside the door frame).

The diverter assembly is usually sold as a complete unit and is straightforward to replace.

When to Call a Professional

If cleaning and resetting do not fix E8, the diverter assembly needs to be tested. The diverter is located at the bottom of the dishwasher tub under the lower spray arm. Replacement parts cost $40 to $80, and a technician can complete the job in under an hour.

Frequently Asked Questions

My dishwasher fills with water but E8 appears — why?

E8 is about the diverter valve that routes water to the spray arms, not the fill valve. The machine fills correctly but cannot direct water to wash. Check the diverter valve at the bottom of the tub.

Can I clear a jammed diverter valve myself?

Yes, in most cases. Remove the lower spray arm and look for debris around the diverter in the sump area. Use needle-nose pliers to remove any foreign objects — never reach in bare-handed if broken glass is possible.

Is E8 the same as a turbidity sensor fault?

No — E8 specifically means a diverter valve fault on GE dishwashers. A turbidity sensor fault would display a different error code depending on the model. If dishes are not getting clean AND E8 appears, the diverter is the issue to address first.