Rinse pressure too high; display shows E14 and machine may shut down rinse circuit.

Safety first: Shut off power and close the rinse water supply. High pressure can damage components and cause leaks.

Step-by-step checks:

• Measure incoming pressure: Use a pressure gauge to check building water pressure. If it exceeds CMA’s maximum, a building-level pressure-reducing valve may be required.
• Inspect regulator installation: Confirm the rinse pressure regulator is installed in the correct flow direction and has not been bypassed.
• Test regulator function: Slowly open the supply valve and observe pressure downstream of the regulator. If it does not control pressure, replace the regulator.
• Check rinse pressure switch: Verify the switch is not stuck or misadjusted. Replace if it falsely indicates high pressure.

When to call a technician: High-pressure issues often require a technician to adjust or replace regulators and verify safe operation.