Franke Garbage Disposals Error Codes

E1

Garbage disposal will not start; wall switch is on, but unit is completely dead and a small red LED or indicator on the Franke control module flashes once repeatedly.

Line Power Supply Fault

E2

Garbage disposal hums but does not spin; Franke electronic model shows E2 or two blinking LEDs on the control box after a failed start attempt.

Rotor Jam / Overload Lockout

E3

Franke electronic garbage disposal stops shortly after starting and displays E3 or three blinking LEDs; unit feels very hot to the touch.

Motor Overheating / Thermal Protector Trip

E4

Franke disposal with electronic control does not respond to the wall switch; E4 or four blinking LEDs indicate a control board fault.

Control Board / Relay Failure

E5

Franke disposal with integrated air switch or remote switch shows E5 or five blinking LEDs; unit will not start even though power is present at the control module.

Start Switch / Air Switch Circuit Fault

E6

Franke disposal stops mid-cycle and displays E6 or six blinking LEDs; may coincide with a tripped GFCI outlet.

Ground Fault / Leakage Current Detected

E7

Franke disposal with electronic speed control shows E7; unit may start but runs erratically or at incorrect speed.

Motor Speed Sensor / Tachometer Fault

E8

Franke disposal with soft-start feature displays E8; unit attempts to start but immediately shuts off with a clicking sound from the control box.

Soft-Start / Inrush Current Protection Fault

E9

Franke disposal with integrated overload indicator shows E9; unit will not run and the overload reset button does not restore operation.

Permanent Overload / Locked Rotor Condition

F1

Franke disposal with wireless remote control shows F1 on the receiver module; remote will not start the unit.

Remote Pairing / Signal Fault

F2

Franke disposal with wireless remote intermittently starts or stops; F2 error appears on the receiver or in the app (for smart models).

Communication Interference / Weak Signal

F3

Smart Franke disposal connected to a home hub shows F3 in the app; disposal runs but status or control from the app fails.

Smart Module / Network Communication Fault

Symptom

Garbage disposal causes a noticeable buzzing or humming from the Franke control box but the motor does not run.

Stuck Relay / Failed Power Electronics

Symptom

Garbage disposal causes the kitchen lights to dim significantly or trips the circuit breaker when starting.

Excessive Inrush Current / Electrical Overload

Symptom

Garbage disposal does not turn on at all; no humming, no sound, but there is no visible error indicator on a basic Franke model.

No Power / Open Circuit

Symptom

Garbage disposal emits a burning smell or electrical odor when running.

Overheating Motor / Electrical Insulation Breakdown

Symptom

Garbage disposal emits a persistent bad odor even after running with water.

Organic Buildup / Biofilm in Grinding Chamber

Symptom

Garbage disposal is unusually loud compared to when it was new, even with no load.

Worn Bearings / Internal Wear

Symptom

Garbage disposal makes a clicking sound but the grinding plate only moves slightly back and forth.

Partial Jam / Intermittent Obstruction

Symptom

Garbage disposal makes a high-pitched whine but does not grind effectively; chamber appears mostly empty.

Free-Spinning Motor with Disconnected Grinding Plate

Symptom

Garbage disposal makes a low humming noise when switched on but the grinding plate does not spin.

Rotor Jam / Stalled Motor

Symptom

Garbage disposal mounting assembly is loose; the unit can be moved by hand and may leak or vibrate.

Loose Mounting Assembly

Symptom

Garbage disposal produces loud metal-on-metal grinding or screeching noises during operation.

Foreign Object / Damaged Grinding Components

Symptom

Garbage disposal runs but makes a rattling or clattering noise as if small objects are bouncing around inside.

Loose Debris in Grinding Chamber

Symptom

Garbage disposal runs but seems weak, struggles to grind normal food waste, and slows down easily.

Reduced Motor Torque / Worn Components

Symptom

Garbage disposal runs but water backs up into the opposite sink bowl in a double-sink installation.

Cross-Drain Restriction / Improper Baffle Tee

Symptom

Garbage disposal runs but water backs up into the sink and does not drain properly.

Drainage Obstruction

Symptom

Garbage disposal runs normally but there is a slow drip from the discharge elbow connection to the drain pipe.

Discharge Elbow / Gasket Leak

Symptom

Garbage disposal splash guard is torn, loose, or missing, causing water to splash out of the sink during operation.

Damaged Splash Guard / Baffle

Symptom

Garbage disposal switch is turned on but there is only a faint click and the unit does not run.

Failed Start Circuit / Relay

Symptom

Garbage disposal trips its reset button frequently or shuts off after a few seconds of operation.

Overcurrent / Overload Trip

Symptom

Garbage disposal turns on by itself or fails to turn off immediately when the switch is flipped.

Control / Switch Sticking

Symptom

Garbage disposal vibrates excessively and causes the sink and countertop to shake during operation.

Imbalance / Mounting Misalignment

Symptom

Garbage disposal will not start unless the reset button is pressed each time before use.

Nuisance Overload Trip / Weak Overload Protector

Symptom

Garbage disposal works but occasionally jams when processing fibrous foods like celery or corn husks.

Fibrous Food Entanglement

Symptom

Water leaks from the bottom of the Franke garbage disposal housing.

Internal Seal / Casing Leak

Symptom

Water leaks from the side of the Franke disposal where the dishwasher drain hose connects.

Dishwasher Inlet / Hose Connection Leak

Symptom

Water leaks from the top of the Franke garbage disposal where it meets the sink.

Sink Flange / Mounting Seal Leak