InSinkErator
InSinkErator Garbage Disposals Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
Advertisements
Symptom
Disposal causes a loud thump or bang when starting or stopping.
Excessive Torque Reaction / Loose Mount
Symptom
Disposal causes noticeable dimming or flickering of kitchen lights when starting.
High Inrush Current / Marginal Circuit
Symptom
Disposal does not start from the air switch button on the countertop.
Air Switch Actuation Failure
Symptom
Disposal emits a burning smell or smoke when running.
Motor Overheating / Electrical Insulation Breakdown
Symptom
Disposal hums when switched on, but the grinding plate does not turn.
Impeller Plate Jam / Rotor Locked
Symptom
Disposal is completely dead; no humming, no sound when the wall switch or air switch is turned on.
No Power / Open Circuit
Symptom
Disposal is very hot to the touch after short use and shuts off.
Thermal Overload from Overheating
Symptom
Disposal makes a high-pitched squealing or chirping noise when running.
Bearing or Shaft Friction / Foreign Object Contact
Symptom
Disposal motor runs but the grind plate does not spin (viewed from above), and no grinding occurs.
Sheared Coupling / Internal Drive Failure
Symptom
Disposal runs but does not grind effectively; food remains unprocessed or takes a very long time to clear.
Dull Grind Components / Low Torque
Symptom
Disposal runs but water leaks from around the reset button area only when the unit is running.
Dynamic Internal Leak Under Pressure
Symptom
Disposal runs but water leaks from the side discharge elbow connection.
Discharge Elbow Gasket / Connection Leak
Symptom
Disposal runs intermittently when the sink or unit is bumped.
Loose Electrical Connection / Intermittent Power
Symptom
Disposal runs very loudly compared to when it was new, with a harsh or roaring sound.
Worn Motor Bearings / Internal Mechanical Wear
Symptom
Disposal runs, but makes loud metal-on-metal grinding, rattling, or clanking noises.
Foreign Object in Grind Chamber
Symptom
Disposal runs, but water backs up into the sink and does not drain through the unit.
Discharge / Drain Outlet Blockage
Symptom
Disposal splashes water and food particles up out of the sink opening during use.
Missing or Worn Splash Guard / Excessive Back-Splash
Symptom
Disposal starts but then stops abruptly within a few seconds without tripping the red reset button.
Intermittent Power Loss / Loose Connection
Symptom
Disposal trips the household circuit breaker or GFCI outlet when turned on.
Short Circuit / Ground Fault
Symptom
Disposal trips the red reset button frequently during or shortly after use.
Overload / Overcurrent Protection Tripping
Symptom
Disposal vibrates excessively and causes the sink or countertop to shake during operation.
Imbalanced Grind Plate / Mounting Instability
Symptom
Disposal will not accept food easily; the opening seems restricted, and food sits on top.
Deformed or Incorrect Splash Guard Restricting Inlet
Symptom
Disposal will not mount securely to existing sink mount; the unit sags or will not lock into place.
Incompatible or Damaged Mounting Assembly
Symptom
Disposal will not start unless the reset button is pressed each time before use.
Overload Reset Mechanism Fault
Symptom
Disposal will not turn off; it continues running even when the wall switch is off.
Stuck Switch / Miswired Circuit
Symptom
Newly installed InSinkErator disposal causes the dishwasher to back up into the sink or leak from the dishwasher hose connection.
Dishwasher Inlet Knockout Not Removed / Improper Hose Connection
Symptom
Persistent foul odor from the disposal even after running water and grinding ice.
Organic Buildup in Grind Chamber and Discharge
Symptom
The disposal causes a buzzing or humming noise from the wall switch or air switch control box.
Switch Contact Arcing / Underrated Control
Symptom
The disposal is misaligned with existing plumbing after replacement; the discharge cannot be connected without strain.
Improper Plumbing Alignment / Installation Issue
Symptom
The disposal is unusually quiet and appears to run, but food is not being ground or discharged.
Impeller Lugs Stuck / Plate Spinning Without Agitation
Symptom
The disposal runs, but water slowly leaks from the junction box cover or wiring compartment.
Water Intrusion into Electrical Compartment
Symptom
Water backs up into the opposite sink bowl when the disposal is running (on a double sink).
Shared Drain Line Restriction
Symptom
Water leaks from the bottom of the disposal housing (from the motor area or reset button).
Internal Seal / Grind Chamber Leak
Symptom
Water leaks from the side of the disposal where the dishwasher hose connects.
Dishwasher Inlet Connection Leak
Symptom
Water leaks from the top of the disposal where it mounts to the sink (around the sink flange).
Sink Flange Seal Failure
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| – |
Disposal causes a loud thump or bang when starting or stopping.
|
Excessive Torque Reaction / Loose Mount | View Details |
| – |
Disposal causes noticeable dimming or flickering of kitchen lights when starting.
|
High Inrush Current / Marginal Circuit | View Details |
| – |
Disposal does not start from the air switch button on the countertop.
|
Air Switch Actuation Failure | View Details |
| – |
Disposal emits a burning smell or smoke when running.
|
Motor Overheating / Electrical Insulation Breakdown | View Details |
| – |
Disposal hums when switched on, but the grinding plate does not turn.
|
Impeller Plate Jam / Rotor Locked | View Details |
| – |
Disposal is completely dead; no humming, no sound when the wall switch or air switch is turned on.
|
No Power / Open Circuit | View Details |
| – |
Disposal is very hot to the touch after short use and shuts off.
|
Thermal Overload from Overheating | View Details |
| – |
Disposal makes a high-pitched squealing or chirping noise when running.
|
Bearing or Shaft Friction / Foreign Object Contact | View Details |
| – |
Disposal motor runs but the grind plate does not spin (viewed from above), and no grinding occurs.
|
Sheared Coupling / Internal Drive Failure | View Details |
| – |
Disposal runs but does not grind effectively; food remains unprocessed or takes a very long time to clear.
|
Dull Grind Components / Low Torque | View Details |
| – |
Disposal runs but water leaks from around the reset button area only when the unit is running.
|
Dynamic Internal Leak Under Pressure | View Details |
| – |
Disposal runs but water leaks from the side discharge elbow connection.
|
Discharge Elbow Gasket / Connection Leak | View Details |
| – |
Disposal runs intermittently when the sink or unit is bumped.
|
Loose Electrical Connection / Intermittent Power | View Details |
| – |
Disposal runs very loudly compared to when it was new, with a harsh or roaring sound.
|
Worn Motor Bearings / Internal Mechanical Wear | View Details |
| – |
Disposal runs, but makes loud metal-on-metal grinding, rattling, or clanking noises.
|
Foreign Object in Grind Chamber | View Details |
| – |
Disposal runs, but water backs up into the sink and does not drain through the unit.
|
Discharge / Drain Outlet Blockage | View Details |
| – |
Disposal splashes water and food particles up out of the sink opening during use.
|
Missing or Worn Splash Guard / Excessive Back-Splash | View Details |
| – |
Disposal starts but then stops abruptly within a few seconds without tripping the red reset button.
|
Intermittent Power Loss / Loose Connection | View Details |
| – |
Disposal trips the household circuit breaker or GFCI outlet when turned on.
|
Short Circuit / Ground Fault | View Details |
| – |
Disposal trips the red reset button frequently during or shortly after use.
|
Overload / Overcurrent Protection Tripping | View Details |
| – |
Disposal vibrates excessively and causes the sink or countertop to shake during operation.
|
Imbalanced Grind Plate / Mounting Instability | View Details |
| – |
Disposal will not accept food easily; the opening seems restricted, and food sits on top.
|
Deformed or Incorrect Splash Guard Restricting Inlet | View Details |
| – |
Disposal will not mount securely to existing sink mount; the unit sags or will not lock into place.
|
Incompatible or Damaged Mounting Assembly | View Details |
| – |
Disposal will not start unless the reset button is pressed each time before use.
|
Overload Reset Mechanism Fault | View Details |
| – |
Disposal will not turn off; it continues running even when the wall switch is off.
|
Stuck Switch / Miswired Circuit | View Details |
| – |
Newly installed InSinkErator disposal causes the dishwasher to back up into the sink or leak from the dishwasher hose connection.
|
Dishwasher Inlet Knockout Not Removed / Improper Hose Connection | View Details |
| – |
Persistent foul odor from the disposal even after running water and grinding ice.
|
Organic Buildup in Grind Chamber and Discharge | View Details |
| – |
The disposal causes a buzzing or humming noise from the wall switch or air switch control box.
|
Switch Contact Arcing / Underrated Control | View Details |
| – |
The disposal is misaligned with existing plumbing after replacement; the discharge cannot be connected without strain.
|
Improper Plumbing Alignment / Installation Issue | View Details |
| – |
The disposal is unusually quiet and appears to run, but food is not being ground or discharged.
|
Impeller Lugs Stuck / Plate Spinning Without Agitation | View Details |
| – |
The disposal runs, but water slowly leaks from the junction box cover or wiring compartment.
|
Water Intrusion into Electrical Compartment | View Details |
| – |
Water backs up into the opposite sink bowl when the disposal is running (on a double sink).
|
Shared Drain Line Restriction | View Details |
| – |
Water leaks from the bottom of the disposal housing (from the motor area or reset button).
|
Internal Seal / Grind Chamber Leak | View Details |
| – |
Water leaks from the side of the disposal where the dishwasher hose connects.
|
Dishwasher Inlet Connection Leak | View Details |
| – |
Water leaks from the top of the disposal where it mounts to the sink (around the sink flange).
|
Sink Flange Seal Failure | View Details |
No matching codes found
Advertisements