Rinse arms do not spray or rotate; final rinse appears weak or absent.

Safety first: Turn off power and close the rinse water supply before removing rinse arms.

Step-by-step checks:

• Clean rinse nozzles: Remove rinse arms and clean each nozzle opening with a small brush or pick.
• Check strainer: Clean the rinse line strainer to restore flow.
• Verify pressure: Confirm that building and regulated rinse pressure meet CMA specifications.
• Test solenoid/pump: Energize the rinse solenoid or pump in test mode. Replace if not operating correctly.

When to call a technician: If rinse flow remains inadequate after cleaning and basic checks, a technician should evaluate the booster and internal plumbing.