Thermistor fault

What does 29 mean?

The thermistor input of an option board has detected an increase in the motor temperature beyond set limits, or there is an issue with the thermistor connection itself. This fault indicates a risk of motor overheating.

• Motor's internal thermistor is faulty or disconnected.
• Thermistor resistance reading is out of range (P1-26).
• Wiring issue to the motor thermistor.
• Incorrect thermistor type selected in parameters.
• Overheating condition detected by the thermistor.

Click steps to track your progress.

1. 1

   Check the motor's cooling system and confirm that the motor is not overloaded.

2. 2

   Verify the thermistor connection to the option board for proper wiring and continuity.

3. 3

   If the thermistor input of the option board is not in use, ensure it is correctly short-circuited as per installation instructions.