What the thread found

• The M-One motor potentiometer can be replaced by a service technician, requiring modification of the replacement part to fit properly.
• A shaft seal inside the motor that functions as a clutch for the potentiometer shaft can wear out and may need replacement during repairs.
• Modified potentiometers can be prepared in advance to allow faster turnaround times for subsequent motor repairs.
• Testing the repaired motor with a Bartec unit can verify that potentiometer replacement has been successful.
• Service turnaround time for potentiometer replacement can range from a few days to two weeks depending on the technician's workload and preparation.
• The original manufacturer had extended service delays and communication issues, prompting alternative service providers to offer repair capabilities.

Depends on

• Service providers can only replace the potentiometer and shaft seal; damage to custom gears or housing cannot be repaired externally.
• The potentiometer replacement requires specialized modification work on a lathe, not a simple swap of standard parts.
• This discussion documents repair experiences from around 2014; current service availability and procedures may differ.

Gear in this thread

BFD

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