Waste King
Waste King Garbage Disposals Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
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E1
Garbage disposal will not turn on; red reset button on bottom is not tripped; unit has integrated electronic control with E1 flashing on connected sink switch or smart controller.
Line Voltage Supply Fault
E2
Garbage disposal hums briefly then shuts off; smart controller or connected switch shows E2 overload indication.
Motor Overload / Locked Rotor
E3
Garbage disposal stops mid-run and will not restart for several minutes; smart controller logs E3 thermal event.
Thermal Overload Trip
E4
Smart sink switch or connected controller shows E4; disposal runs but water backs up into sink and drains slowly.
Drainage Restriction / Discharge Blockage
E5
Smart controller or integrated module shows E5; disposal does not respond to wall switch but has power at outlet.
Control / Switch Input Fault
E6
Smart controller shows E6; disposal runs but makes intermittent grinding speed changes or stalls briefly under light load.
Motor Speed / Torque Irregularity
E7
Smart controller or connected app reports E7; disposal stops when water is not running or when vibration is detected.
Vibration / Imbalance Protection Trip
E8
Smart controller shows E8; disposal runs but water leaks from bottom motor housing area.
Internal Seal / Motor Housing Leak
Symptom
Garbage disposal backs up into the sink; water drains very slowly or not at all when disposal is off.
Clogged Drain Line / P-Trap
Symptom
Garbage disposal causes a loud bang or clunk when starting or stopping.
Loose Mounting Assembly / Excessive Play
Symptom
Garbage disposal causes lights to dim significantly when turned on.
High Inrush Current / Shared Circuit Overload
Symptom
Garbage disposal emits a burning smell or smoke during operation.
Overheating Motor / Electrical Overload
Symptom
Garbage disposal emits a strong rotten or sewer-like odor from the sink opening.
Organic Buildup in Grinding Chamber and Drain
Symptom
Garbage disposal hums when switched on but the grinding plate does not spin.
Jammed Impeller / Locked Rotor
Symptom
Garbage disposal is difficult to remove from the mounting assembly during replacement.
Seized or Corroded Mounting Ring
Symptom
Garbage disposal is extremely loud compared to when it was new, even with no foreign objects present.
Aged Bearings / Internal Wear
Symptom
Garbage disposal leaks from the side or rear discharge pipe connection.
Leaking Discharge Elbow / Drain Connection
Symptom
Garbage disposal leaks from the side where the dishwasher hose connects.
Leaking Dishwasher Inlet Connection
Symptom
Garbage disposal makes a clicking sound but does not run when the switch is turned on.
Internal Relay / Start Mechanism Fault
Symptom
Garbage disposal makes a loud rattling or clanking noise but still grinds food.
Loose or Damaged Swivel Impellers
Symptom
Garbage disposal makes loud metal-on-metal grinding or screeching noises during operation.
Foreign Object in Grinding Chamber
Symptom
Garbage disposal motor starts slowly or struggles to reach full speed.
Weak Motor / Starting Circuit Issue
Symptom
Garbage disposal runs but does not grind food effectively; food remains in chamber or exits in large chunks.
Worn Grinding Components / Dull Lugs
Symptom
Garbage disposal runs but occasionally seizes and then restarts on its own during use.
Intermittent Mechanical Binding
Symptom
Garbage disposal runs but water and ground food back up into the opposite sink bowl in a double sink.
Improper Double-Sink Drain Configuration / Partial Clog
Symptom
Garbage disposal runs but water leaks from the electrical compartment cover or bottom plate.
Internal Seal Failure / Housing Crack
Symptom
Garbage disposal runs but water leaks from the top where it meets the sink.
Leaking Sink Flange / Mounting Gasket
Symptom
Garbage disposal splashes water and food particles back up into the sink during operation.
Missing or Damaged Splash Guard / Baffle
Symptom
Garbage disposal switch produces a buzzing sound but the unit does not run.
Faulty Wall Switch / Loose Electrical Connection
Symptom
Garbage disposal trips the circuit breaker or GFCI outlet whenever it is turned on.
Electrical Short / Ground Fault
Symptom
Garbage disposal trips the red reset button frequently during normal use.
Chronic Overload / Overheating
Symptom
Garbage disposal turns on by itself or will not turn off unless power is cut at the breaker.
Stuck or Shorted Wall Switch / Control
Symptom
Garbage disposal vibrates excessively and shakes the sink or countertop during use.
Imbalanced Grinding Assembly / Loose Mount
Symptom
Garbage disposal will not start unless the red reset button is pressed each time before use.
Faulty Internal Overload / Reset Mechanism
Symptom
Garbage disposal will not turn on at all; no humming, no noise, appears completely dead.
No Power to Disposal
Symptom
Newly installed Waste King garbage disposal will not drain; water stands in the sink when the dishwasher runs.
Dishwasher Knockout Plug Not Removed
Symptom
Water backs up into the dishwasher or into the sink when the dishwasher runs, especially near the disposal.
Dishwasher Drain Through Disposal Blocked
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E1 |
Garbage disposal will not turn on; red reset button on bottom is not tripped; unit has integrated electronic control with E1 flashing on connected sink switch or smart controller.
|
Line Voltage Supply Fault | View Details |
| E2 |
Garbage disposal hums briefly then shuts off; smart controller or connected switch shows E2 overload indication.
|
Motor Overload / Locked Rotor | View Details |
| E3 |
Garbage disposal stops mid-run and will not restart for several minutes; smart controller logs E3 thermal event.
|
Thermal Overload Trip | View Details |
| E4 |
Smart sink switch or connected controller shows E4; disposal runs but water backs up into sink and drains slowly.
|
Drainage Restriction / Discharge Blockage | View Details |
| E5 |
Smart controller or integrated module shows E5; disposal does not respond to wall switch but has power at outlet.
|
Control / Switch Input Fault | View Details |
| E6 |
Smart controller shows E6; disposal runs but makes intermittent grinding speed changes or stalls briefly under light load.
|
Motor Speed / Torque Irregularity | View Details |
| E7 |
Smart controller or connected app reports E7; disposal stops when water is not running or when vibration is detected.
|
Vibration / Imbalance Protection Trip | View Details |
| E8 |
Smart controller shows E8; disposal runs but water leaks from bottom motor housing area.
|
Internal Seal / Motor Housing Leak | View Details |
| – |
Garbage disposal backs up into the sink; water drains very slowly or not at all when disposal is off.
|
Clogged Drain Line / P-Trap | View Details |
| – |
Garbage disposal causes a loud bang or clunk when starting or stopping.
|
Loose Mounting Assembly / Excessive Play | View Details |
| – |
Garbage disposal causes lights to dim significantly when turned on.
|
High Inrush Current / Shared Circuit Overload | View Details |
| – |
Garbage disposal emits a burning smell or smoke during operation.
|
Overheating Motor / Electrical Overload | View Details |
| – |
Garbage disposal emits a strong rotten or sewer-like odor from the sink opening.
|
Organic Buildup in Grinding Chamber and Drain | View Details |
| – |
Garbage disposal hums when switched on but the grinding plate does not spin.
|
Jammed Impeller / Locked Rotor | View Details |
| – |
Garbage disposal is difficult to remove from the mounting assembly during replacement.
|
Seized or Corroded Mounting Ring | View Details |
| – |
Garbage disposal is extremely loud compared to when it was new, even with no foreign objects present.
|
Aged Bearings / Internal Wear | View Details |
| – |
Garbage disposal leaks from the side or rear discharge pipe connection.
|
Leaking Discharge Elbow / Drain Connection | View Details |
| – |
Garbage disposal leaks from the side where the dishwasher hose connects.
|
Leaking Dishwasher Inlet Connection | View Details |
| – |
Garbage disposal makes a clicking sound but does not run when the switch is turned on.
|
Internal Relay / Start Mechanism Fault | View Details |
| – |
Garbage disposal makes a loud rattling or clanking noise but still grinds food.
|
Loose or Damaged Swivel Impellers | View Details |
| – |
Garbage disposal makes loud metal-on-metal grinding or screeching noises during operation.
|
Foreign Object in Grinding Chamber | View Details |
| – |
Garbage disposal motor starts slowly or struggles to reach full speed.
|
Weak Motor / Starting Circuit Issue | View Details |
| – |
Garbage disposal runs but does not grind food effectively; food remains in chamber or exits in large chunks.
|
Worn Grinding Components / Dull Lugs | View Details |
| – |
Garbage disposal runs but occasionally seizes and then restarts on its own during use.
|
Intermittent Mechanical Binding | View Details |
| – |
Garbage disposal runs but water and ground food back up into the opposite sink bowl in a double sink.
|
Improper Double-Sink Drain Configuration / Partial Clog | View Details |
| – |
Garbage disposal runs but water leaks from the electrical compartment cover or bottom plate.
|
Internal Seal Failure / Housing Crack | View Details |
| – |
Garbage disposal runs but water leaks from the top where it meets the sink.
|
Leaking Sink Flange / Mounting Gasket | View Details |
| – |
Garbage disposal splashes water and food particles back up into the sink during operation.
|
Missing or Damaged Splash Guard / Baffle | View Details |
| – |
Garbage disposal switch produces a buzzing sound but the unit does not run.
|
Faulty Wall Switch / Loose Electrical Connection | View Details |
| – |
Garbage disposal trips the circuit breaker or GFCI outlet whenever it is turned on.
|
Electrical Short / Ground Fault | View Details |
| – |
Garbage disposal trips the red reset button frequently during normal use.
|
Chronic Overload / Overheating | View Details |
| – |
Garbage disposal turns on by itself or will not turn off unless power is cut at the breaker.
|
Stuck or Shorted Wall Switch / Control | View Details |
| – |
Garbage disposal vibrates excessively and shakes the sink or countertop during use.
|
Imbalanced Grinding Assembly / Loose Mount | View Details |
| – |
Garbage disposal will not start unless the red reset button is pressed each time before use.
|
Faulty Internal Overload / Reset Mechanism | View Details |
| – |
Garbage disposal will not turn on at all; no humming, no noise, appears completely dead.
|
No Power to Disposal | View Details |
| – |
Newly installed Waste King garbage disposal will not drain; water stands in the sink when the dishwasher runs.
|
Dishwasher Knockout Plug Not Removed | View Details |
| – |
Water backs up into the dishwasher or into the sink when the dishwasher runs, especially near the disposal.
|
Dishwasher Drain Through Disposal Blocked | View Details |
No matching codes found
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