T4NM : High Temperature Motor

  • Ensure ambient temperature is below 120°F(49°C) before using the system.

 

  • Verify wiring between the motor temperature sensor and the module.

 

  • The motor over-temperature switch is "normally-closed" (contacts closed).  The contacts will open when the motor temperature is too high.  
  • Check resistance across pins to confirm they are closed (approx 1 ohm or less) when the motor is cold.  
    • If open (very high resistance) when motor is cold, replace motor.