Common Commercial Truck AC Problems
Air conditioning is necessary during the hot summer months to keep you comfortable inside your truck's cab, but if you don't prevent or cure AC issues, they may make life in the cab miserable.
In some areas of the nation, the temperature might exceed 100 degrees. You understand as a commercial truck driver how important air conditioning is to keep cool while driving. Because of the heat in the cab, especially on longer rides, you don't want to have to do your job. There are only a few reasons why the AC in your truck isn't functioning properly, and AC issues are rather common.
How Air Conditioning Works
It will be more challenging to comprehend why you are experiencing AC issues if you are unfamiliar with how air conditioning operates.
A vapor refrigerant, such as freon, is transferred through parts like a compressor, condenser, throttle valve, expansion hose, blower motor, and evaporator in order to make your truck cab feel like an arctic. By extracting heat from the cab or other enclosed compartments and cooling them, the AC reduces the temperature there.
Under high pressure, the refrigerant travels through a compressor where it is also heated. Then, after passing via cool water or air-cooled coils or tubes, it moves to the condenser close to the radiator, where it condenses. Before entering the evaporator, the liquid refrigerant travels via an expansion hose or valve to lower pressure, causing flash evaporation with assistance from the blower motor. The refrigerant becomes colder than the air it is replacing as a result of this evaporation. After passing through the evaporator, it is distributed by a fan located just next to the vent where the cold air comes out. The procedure then repeats itself to continuously introduce cool air into the cab while exhausting hot air.
Common AC Problems
To keep the cold air moving, air conditioning depends on a number of components and systems operating together. Your AC may stop functioning if one of them fails.
Leaking refrigerant
The primary cause of AC issues is refrigerant leaks. Numerous factors, including general dysfunctions and component faults, can cause the refrigerant to leak through hoses, O-rings, compressors, and evaporators. Leaks can additionally be caused by poor installation, corrosion, and aging. Your air conditioner won't blow cool air into your cab if the refrigerant is missing.
Electrical failure
The AC in your truck, like many other truck systems, is powered by electricity. Your AC issues could be caused by a weak battery, shoddy wiring, a blown fuse, or a defective switch, among other things. An electric motor powers the condenser fan. The fan in the dashboard vent may stop blowing air if there is an electrical issue. Fortunately, fixing most electrical problems is simple.
Compressor failure
A compressor is designed only to pump air. Therefore, the compressor has to work much harder to keep the air conditioning system running if water, dirt, or another substance like oil gets inside of it. An overloaded compressor will simply stop operating as a result of being unable to manage the non-air materials. In addition to the expense of labor, the price to replace a compressor might range from $300 to $1,000.
Condenser blockage
More solid substances, like dirt, don't work well with condensers since they turn gas into a liquid. As layers build up on the coils, a buildup of materials over time might result in a blockage that prevents the refrigerant from adequately cooling down. The last thing you need on a hot day is for your AC vent to pump hot air into the cab instead of cool air.
Contamination
To produce cool air, the AC converts a refrigerant from a gas to a liquid and back again. Additionally, hot air can be converted into cool air by a procedure. The AC unit may develop mold as a result of these activities. This mold can grow throughout the system and cause issues if it is not controlled.
Stuck Blower Resistor
Occasionally, the blower resistor may become jammed, making it impossible to adjust the fan's airflow speed. This is another straightforward issue with a simple solution.
Signs of AC Problems
There are various indications that the AC in your truck is malfunctioning. Observing and taking note of these symptoms can aid in figuring out what's wrong and how to solve it.
• Low air pressure
• Blowing hot air
• Leaks and stains
• Weird noises
• Bad odors
If you see any of these symptoms, have a mechanic work on your truck. Early problem-solving helps stop little issues from growing into larger ones.
Preventing AC Problems
The easiest method to identify issues or completely avoid them is to frequently inspect and service the AC system, just like you would other components of your commercial truck.
Use the dye test to check for leaks on a regular basis to detect whether any refrigerant is escaping. Verify the tightness of your hose fittings. Regularly refill the refrigerant because it can run out after a while of use. In order to recharge the system without overcharging it, you must find the low-pressure valve. Look for layers of filth, grit, and grime accumulation in filters and vents. There may even be mold to get rid of. The best course of action is to get your truck inspected and maintained by a professional. A professional will charge a little bit extra, but they will know exactly what to look for and how to resolve any issues that come up. Keep a checklist close at hand to note the date of the inspection or maintenance as well as any new part installations.
Contact Tacoma Truck Repair Center
The Tacoma Truck Repair Center is prepared to prevent or resolve any AC issues with your commercial truck. Our experts have the knowledge and experience to guarantee that your AC is operating at peak efficiency to keep you comfortable throughout the summer. We can handle any HVAC diagnosis or repair, no matter how big or small. In addition to fixing issues, we also offer inspections and maintenance to stop them from happening. Call us at 253-231-5500 or visit our website right away if you think your AC needs repair. We will gladly travel to you if you are unable to come to us.