Display shows Er12 and washer fills and drains repeatedly without progressing

Safety first: Unplug the unit before adjusting hoses behind the machine.

• 1. Check drain hose height: Ensure the drain hose is installed at the correct height per Speed Queen specs (typically 30–96 inches above floor). A hose too low can cause siphoning.
• 2. Verify hose insertion: The hose should not be sealed airtight into the standpipe. Leave an air gap to prevent siphon.
• 3. Inspect for improper routing: Avoid running the hose to a floor drain or below the washer's water level.
• 4. Pressure sensor check: Inspect the pressure hose and sensor as in Er8. Replace if faulty.
• 5. Control reset: After correcting installation, unplug for 5–10 minutes, then run a small load to confirm normal fill and drain behavior.