Wash pump does not start; machine fills but there is no spray and E8 is displayed.

Safety first: Disconnect power and allow the machine to cool. Do not attempt to spin the pump with power applied.

Troubleshooting steps:

• Check for obstructions: Remove lower wash arms and strainers to access the pump inlet. Inspect for broken glass, bones, or utensils blocking the Champion wash pump impeller. Clear any debris.
• Inspect pump motor: Access the wash pump from the base. Try rotating the motor shaft or impeller by hand; it should move smoothly. If seized, the pump assembly likely needs replacement.
• Verify power to pump: With power on and a call for wash, measure voltage at the pump terminals or contactor output. If correct voltage is present but the motor does not run, the motor is defective.
• Check thermal overload: Some Champion pumps have a manual-reset overload. Reset if tripped. Repeated trips indicate a failing motor or mechanical binding.
• Inspect pump contactor/relay: In the control box, check that the wash pump contactor energizes. Replace if the coil is open or contacts are burned.

When to call a technician: Wash pump replacement can be heavy and involves water seals and alignment. If you are not experienced, have a service technician perform the replacement.