How to Unjam a Humming Garbage Disposal in 5 Minutes in Denver, CO
A humming disposal in a Denver kitchen is usually a jam, not a dead motor. In the city's pre-1960 homes the disposal was usually added during a remodel and may drain into an older, narrower line, so grease and fibrous scraps are a common cause. Free the flywheel first, then run plenty of cold water to keep waste moving through older pipes.
📺 Video Tutorial: https://youtu.be/gkztmj4hK2g
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📋 Step-by-Step Manual
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Step 1: Turn OFF the wall switch and unplug the unit
Flip the wall switch off and unplug the power cord under the sink (or turn off the disposal circuit breaker).
⚠️ Caution: NEVER put your fingers or hand inside the disposal opening under any circumstances. -
Step 2: Insert 1/4-inch hex wrench into the bottom center
Look at the underside center of the disposal underneath the sink. Insert a 1/4-inch Allen wrench directly into the central breaker socket.
💡 Tip: Most InSinkErator disposals come with a silver wrench taped to the body. -
Step 3: Crank back and forth to break the jam
Forcefully rotate the wrench back and forth in both directions until the internal flywheel spins 360 degrees smoothly with zero resistance.
💡 Tip: You will hear a snap or pop when the bone or fruit pit dislodges. -
Step 4: Remove the foreign object using tongs
Shine a flashlight into the sink drain and use kitchen tongs or needle-nose pliers to pull out the dislodged coin, bone, or avocado seed.
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Step 5: Press the red thermal overload reset button
Feel along the bottom or lower side of the unit for the small red square reset button. Press it firmly until it clicks back in.
💡 Tip: If the button pops back out immediately, let the motor cool down for 10 minutes. -
Step 6: Run cold water and test
Plug the unit back in, turn on cold running tap water, and flip the wall switch. The motor will spin with a clean, smooth hum.
💡 Tip: Always run cold water for 10 seconds after grinding to flush the trap.
📍 Denver Tips for This Repair
- If your Denver home's disposal drains into an older, narrower line, run cold water for 15 seconds after grinding to push waste through.
- Denver handles garbage disposal connections as quick permits. If you replace the unit or change the drain or wiring, check with Community Planning and Development first.
❓ Denver Repair FAQ
Can I replace a garbage disposal myself in Denver?
Denver lists disposal connections under its quick permits. Owners of a single-family home they live in can pull a homeowner permit, but must pass the plumbing exam, and the electrical exam for wiring work, before doing the work.
How do I take the Denver homeowner exam?
Denver offers free homeowner exams in plumbing, electrical, and mechanical work in person at the Contractor Licensing counter, with no appointment needed. A state license can substitute for the electrical or plumbing exam.
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More Denver Repair Guides
Denver Housing Context
Denver's housing spans more than a century. About 16% of homes were built before 1940, including the brick bungalows and Denver Squares of older neighborhoods, and roughly a third date from before 1960. At the same time, about a quarter of the city's housing has been built since 2010. In the older homes, original drain lines, aging shut-off valves, and early electrical service are common. Freezing winter nights add the risk of frozen pipes in exterior walls and crawlspaces.
Denver Water Quality
Denver Water draws from mountain sources, including the upper South Platte and Blue rivers, Bear Creek, South Boulder Creek, and Fraser River tributaries, stored in reservoirs such as Dillon and Cheesman. The utility describes its water as soft to moderately hard. Its 2025 sampling averaged about 105 mg/L total hardness (roughly 6 grains per gallon), ranging from about 55 to 124 mg/L, with the northern system softer than the southern one. That means some mineral scale, but far less than in desert cities.
Municipal Permit & Code Guidance
Some plumbing and electrical work in Denver may require a permit or inspection under local building code, especially anything involving new supply lines, panel upgrades, or moving fixtures. The steps below cover minor, homeowner-performed maintenance only — for any work that may require a permit, contact the Denver Community Planning and Development before starting.
For this repair in Denver: Clearing a jam is a general repair. Denver handles garbage disposal connections as quick permits, so if you replace the unit or change its drain or wiring, check with Community Planning and Development first.
Denver issues homeowner permits only to the legal owner who lives in a single-family home (not a condo, townhome, or duplex, and not a trust or LLC). The owner must do the work and pass a free homeowner exam before doing plumbing or electrical work.
Permit notes last reviewed October 2026 against official city and state pages. Rules change, so confirm before you start.
Visit Denver Community Planning and Development →FixOrPro AI is not a substitute for local code review. Always verify permit requirements with your local building department before performing electrical, plumbing, or structural work.