Whirlpool Garbage Disposal Unit Replacement & Sink Plumbing Service in La Jolla

Customer Complaint: Whirlpool Garbage Disposal Completely Non-Responsive
A homeowner in La Jolla (92037) contacted ETS Appliance Repair after their Whirlpool kitchen sink garbage disposal unit stopped working entirely. Turning the wall switch produced no sound or motor hum, and attempts to reset the thermal breaker on the underside of the motor housing failed to restore power.
Master Technician Field Diagnostics
Garbage disposals operate under harsh conditions under the kitchen sink. Over time, internal water seal degradation can allow moisture to penetrate the motor bearings, causing electrical shorting, seized flywheels, or internal motor coil breakdown.
Our master technician performed on-site diagnostics in La Jolla:
- 1Voltage & Switch Continuity Test: Verified 120V AC power at the under-sink junction outlet and confirmed the wall switch contacts were closing cleanly.
- 2Flywheel & Reset Button Test: Attempted to manually rotate the bottom flywheel socket with a hex wrench tool. The internal grinding mechanism was severely corroded and locked tight.
- 3Motor Resistance Check: Multimeter resistance testing across the motor leads confirmed a shorted main winding, making internal rebuilding unfeasible.
Repair Execution: Heavy-Duty Replacement Disposal Installation
After explaining the diagnosis, the customer approved installing a new heavy-duty garbage disposal unit:
- Defective Disposer Removal: Disconnected electrical wiring, dishwasher drain bypass inlet, and PVC discharge pipe, removing the failed Whirlpool unit from the sink flange.
- Sink Flange & Plumber's Putty Prep: Cleaned the stainless steel sink drain opening and installed a new Quick-Lock sink flange with fresh 100% waterproof plumber's putty.
- New Unit Mount & Electrical Hookup: Mounted a heavy-duty 3/4 HP stainless steel grinding unit, wired flexible strain relief electrical conduit, and sealed the dishwasher drain connection.
Final Operational Testing & Leak Verification

Following installation, our technician filled the sink basin and ran extensive operational checks:
- Quiet & Powerful Operation: The new disposer unit started instantly with smooth, vibration-free grinding action.
- Sink Basin Flood Test: Filled both sink bowls with water and pulled the plugs simultaneously to test drain pressure—100% leak-free threaded PVC connections.
- Dishwasher Drain Check: Confirmed clean water flow through the dishwasher knock-out plug.
Transparent Invoice & Cost Breakdown
We believe in 100% upfront pricing with zero hidden fees:
- Diagnostic Visit & Multi-Point Inspection: $99.95 *(100% FREE & Waived with completed repair)*
- New Heavy-Duty Disposal Unit, Sink Flange Kit & Installation Labor: $467.00
- Total Investment: $467.00
- Warranty Included: 90-Day Parts & Labor Warranty
Maintenance Tip for Garbage Disposal Owners
Never pour hot grease or fibrous food waste (like corn husks or celery stalks) down your garbage disposal. Always run cold tap water for 15 seconds after turning off the disposer to wash food particles completely through the P-trap.
Need Technician Assistance Today?
$99.95 Technician Diagnostic Visit • 100% Waived With Completed Repair.
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