If your Carrier APU AC is not working, check the refrigerant charge and compressor belt for issues. Also, ensure the power source and maintenance are adequate. Carrier APU AC not working issues can disrupt the comfort of truckers. As the air conditioning system plays a crucial role in maintaining a pleasant atmosphere within the cabin, it's.. The Reasons behind the Carrier APU AC Not Working. A Carrier Auxiliary Power Unit (APU) air conditioning system may encounter issues that prevent it from working properly. These issues can range from simple malfunctions to more complex problems. Here are some common reasons behind a Carrier APU AC not working and potential solutions: 1.
If the Carrier Comfort Pro APU is not producing cold air, check the refrigerant level, clean the condenser coils, and inspect the blower motor for any issues.. and a dedicated enthusiast of all things mechanical. With a wealth of experience working on various machines and engines, James has honed his skills to become a go-to expert for.. Once the APU is running, you can start and stop the fan, heater and air conditioning using the DCP. Page 12: Manual Operations Automatic Mode and Minimum Time Off All these automatic functions work on a "minimum time off": the ComfortPro must be off for at least 10 minutes before the automatic function will turn it on again.