Your disposal hums but won't spin β the impeller plate is jammed. It's completely silent when you flip the switch β the thermal overload protector has tripped or the motor has failed. Water drips from the sink collar β the sink mounting gasket has deteriorated. Each of these is a different diagnosis, and each has a different solution. Masters Plumbing Service's techs in Merced, CA arrive with the jamming tools, reset wrench, and replacement units to resolve any disposal failure same visit.
π Call +1-855-718-1500 β Same-Day Service
We carry replacement units on the truck in common horsepower ratings so a same-day swap is possible when the motor has genuinely failed.
A disposal that hums but won't spin almost always just needs the jam cleared with an Allen wrench at the center socket and the reset button pressed β a 5-minute fix that doesn't require a new unit.
InSinkErator (Badger, Badger 5, Compact, Evolution series), Moen GXS/GX series, Waste King, KitchenAid, and Whirlpool disposals all mount differently and have specific jam-clearing procedures. We know the mounting assembly for each brand and carry the correct jam-clearing wrench sizes.
A disposal that jams once is worth clearing and resetting. A disposal that jams repeatedly, has a seized turntable bearing, emits burning smells, or is over 10 years old is likely approaching motor failure β and the repair cost of a failed motor exceeds the cost of a new unit.
A disposal installed without properly removing the dishwasher drain knockout plug is a common installation error that floods the dishwasher interior. We check this and correct it if present.
From a simple jam clear to a full replacement with drain reconnection, here's how we handle each garbage disposal scenario in Merced, CA.
A disposal that hums with no rotation has a jammed impeller plate β the spinning plate has been stopped by a bone fragment, a piece of silverware that fell in, or hard food buildup around the shredder ring. We use the jam-clearing wrench at the center motor socket to manually rotate the impeller free, remove any obstruction from the grinding chamber, and press the thermal overload reset button before testing.
A disposal that makes no sound when switched on has either tripped its thermal overload protector (the red button on the bottom β press it and try again) or has a wiring issue at the switch or disposal unit. We check the reset button, test for power at the disposal's wire connection, and test the wall switch for continuity.
Disposal leaks come from three locations: the sink flange (top of the unit where it mounts to the sink drain opening β repaired by re-sealing the flange with plumber's putty and re-tightening the mounting ring), the side port (dishwasher drain hose connection β usually a loose hose clamp or cracked fitting), or the bottom of the unit (internal body crack or failed internal seal β indicates replacement needed).
An unusually loud grinding, rattling, or metal-on-metal sound from a disposal almost always means either a hard object (bottle cap, small utensil, pit from stone fruit) is in the grinding chamber, or an impeller piece has broken and is contacting the shredder ring. We access the grinding chamber safely, remove any foreign objects, and inspect the impeller and shredder ring for damage.
If the slow drain persists after cleaning the drain arm and p-trap, a camera scope of the kitchen drain line is the next step to check for blockage further downstream.
Replacement includes: safely disconnecting electrical at the junction box under the sink, removing the old unit and mounting assembly, installing the new unit with correct wiring and plumbing connections, testing for full jam-free operation, and verifying zero leaks at all connections before leaving.
A disposal call takes 30β60 minutes in most cases. Here's exactly how it goes β from your first call to a clean, functional kitchen drain.
If you know the disposal is over 10 years old, tell us β that changes how we approach the repair-vs-replace conversation upfront.
For leaks, we dry the area completely and run a short test cycle to confirm exactly which connection is dripping.
You receive a flat-rate price for the repair option and, if relevant, the replacement option with unit cost included. For a simple jam clear, that's a single, low line item. For a failed motor, we show you the new unit cost and installation price together.
After repair or replacement, we run the disposal through a full test: several cycles with water running, check under the sink for any drip at all connection points, and confirm the drain arm clears at a normal rate.

Disposal hummed and wouldn't spin. I'd already tried the Allen wrench trick without success. Masters Plumbing Service's tech came out, worked the impeller free from underneath while removing a piece of broken ceramic that had fallen in β it had wedged between the impeller and the grinding ring in a way I couldn't have cleared from the top. Cleared the jam, pressed the reset, tested. Five-minute fix. Honest about the call minimum charge, no attempt to upsell a replacement on a perfectly good motor.
Disposal making a loud rattling noise but still grinding. Tech took out a bottle cap that had gotten past the splash guard and was spinning around the grinding chamber. Cleaned out the chamber, confirmed the impeller wasn't damaged, tested for smooth operation. Twenty-minute visit, everything working perfectly.
Old disposal stopped working completely β no hum, nothing. I assumed the motor failed. The tech checked the wiring first β found a loose wire nut at the junction box under the sink that had vibrated loose over the years. Reconnected the wire, reset the overload button, disposal came right on. Would have been embarrassing if I'd bought a replacement unit. Masters Plumbing Service's thoroughness saved me a few hundred dollars.

Our trucks carry replacement disposal units in common horsepower ratings for same-day installation when the motor has failed.

Call now β same-day service available in Merced and across Merced, CA.
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