Garbage disposal causes lights to dim or flicker when starting

Safety first: Electrical panel work should be done by qualified persons. Turn OFF the main breaker if inspecting panel connections.

• Step 1 – Identify circuit load: Determine what else is on the same circuit as the disposal (dishwasher, lights, outlets). Heavy combined loads can cause dimming.
• Step 2 – Check for loose connections: Have an electrician inspect the service panel and junction boxes for loose neutrals or hot connections that can cause flicker.
• Step 3 – Reduce shared loads: Avoid running high-draw appliances (microwave, toaster, space heater) on the same circuit while using the disposal.
• Step 4 – Evaluate motor condition: If dimming is severe and new, the Whirlaway motor may be failing and drawing excessive current. Consider replacing the disposal.
• Step 5 – Upgrade circuit if needed: For persistent issues, consult an electrician about running a dedicated circuit for the disposal and dishwasher.