E15
Tweeny
Speed Control / Inverter Fault
Garbage disposal runs only at very low speed, E15 speed control error on variable-speed Tweeny models
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Defective Tweeny speed control PCB, Faulty motor tach sensor, Incorrect voltage supply, Internal inverter component failure
How to Fix / Troubleshooting
Safety First: Turn OFF power and wait for capacitors to discharge before opening any electronic modules.
- Step 1 – Verify supply voltage: Use a multimeter (qualified persons only) to confirm correct line voltage at the disposal junction box.
- Step 2 – Reset electronics: Disconnect power for 5 minutes to allow the control to reset. Restore power and test.
- Step 3 – Inspect PCB: Remove the electronic module cover and look for burnt components or bulging capacitors on the Tweeny speed control PCB.
- Step 4 – Replace module: If visible damage is present or E15 persists, replace the speed control module with the correct Tweeny part number.
Variable-speed control failures are typically not repairable at component level for homeowners.
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Repair Difficulty
Hard
4/5
Required Part
Tweeny speed control PCB
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