Disposal will not start from wireless or touchpad control, but runs when wired directly; some smart sink control kits show E9 for control communication failure.

Safety first: Turn OFF power to the disposal at the breaker before working on any control wiring. Do not bypass safety grounding.

• Test direct power: If safe and you are qualified, temporarily bypass the smart control by wiring the disposal to a standard wall switch or using a test cord to confirm the motor runs.
• Check batteries: For wireless sink-top buttons, replace the batteries and re-pair the button with the receiver per the American Standard smart control manual.
• Inspect receiver module: Ensure the under-sink receiver is plugged in, dry, and its indicator lights (if present) show normal status.
• Check low-voltage wiring: Look for pinched, cut, or disconnected control wires between the receiver and disposal junction box.
• Replace faulty control: If the disposal runs when wired directly but not via the smart control, replace the smart sink control kit or revert to a standard wall switch installation.