Skip to main contentStart diagnosing E13 on your Frymaster dishwasher
What this code means
Return valve not closed - return valve was trying to close and confirmation is missing. Possible causes: Return valve stuck open; Return valve solenoid failure; Return valve position sensor failure; Wiring harness issue
Next steps: diagnose the root cause
1
Verify the error code is active
Power cycle the unit and see if the code returns. If it does, the fault is persistent and requires diagnosis.
2
Get the full diagnostic procedure
Get step-by-step guidance, test values, and wiring diagrams from the OEM service manual.
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What’s available for Frymaster dishwasher models
Access Frymaster dishwasher service manuals, wiring schematics, exploded parts views, and error code references on MyPros+.