Thermistor fault

What does 29 mean?

The thermistor input on an option board has detected an increase in motor temperature beyond limits, or a fault in the thermistor circuit itself. This protection prevents motor overheating due to excessive load or inadequate cooling. A faulty connection can also trigger this.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Inspect the thermistor connection to the option board for looseness or damage.

2. 4

   If the thermistor input of the option board is not in use, ensure it is properly short-circuited.