Blower Motor Thermal Limiter

The blower motor thermal limiter, used in the heater blower motor switch resistor, performs the following functions:
- It serves as an over temperature protection fuse.
- It is located a predetermined distance away from the resistor coils and in series with the coil circuit.
- It will open the resistor coil circuit when temperature of the thermal limiter reaches 121°C (250°F), interrupting blower motor operation in all speeds except HI.
- The spring contacts separate when the wax softens, causing an open circuit in the heater blower motor switch resistor.