Possible Cause 1: Blower motor not working. 1. Check the circuit breaker or fuse box to ensure there are no...
The Caterpillar 311B Excavator 2LS heater control system has almost no, or no, reason for hot airflow to the cab.The Caterpillar 311B Excavator 2LS heater control system has almost no, or no, reason for hot airflow to the cab.
