Common Commercial Truck AC Problems

 HOW DO AC WORKS?

If you don’t know how air conditioning works it would be tougher to know why you’re facing air conditioning issues.

The process of making your truck cab feel like an igloo involves transferring a vapor refrigerant like Freon through elements including a condenser, compressor, throttle valve, blower motor, and evaporator. The air conditioner lessens the temperature of the cab or other enclosed spaces by removing heat from the space and cooling it. 

Under high pressure, the refrigerant passes through a compressor, which as well heats it. It then flows to the condenser near the radiator, where it condenses after cool water or air flows across the tubes or coils. The liquid refrigerant then passes through an expansion valve or hose to lessen pressure before entering the evaporator, outcoming in flash evaporation with the help of the blower motor. This evaporation causes the refrigerant to be cooler than the air it is replacing. It then runs through the evaporator and is diffused by a fan only inside the vent from which the cool air flows. The procedure then begins over to give a constant flow of cold air in the cab while expelling hot air.

COMMON AIR CONDITIONING ISSUES:

AC depends on a few parts and systems working together to keep the cold air flowing. Failure of any one of them could cause your air conditioning to stop working. 

1. LEAKING REFRIGERANT: 

Refrigerant leakages are the top cause of air conditioning issues. The refrigerant could leak from O-rings, hoses, evaporators, and compressors for a few causes, including general malfunctions and defects in parts. Additionally, shoddy installation, corrosion, and wear and tear over time could outcome in leakages. Without the refrigerant, your AC won’t be putting out cold air in your cab.

2. ELECTRIC FAILURE:

Like a lot of other functions in your truck, the AC depends on electric power to work. A weak battery, bad wiring, a blown fuse, or a default switch can all be liable for your AC issues. The condenser fan is powered by an electrical motor. An electric issue could outcome in the fan not blowing air out of the vent in the dashboard. Luckily, most electric problems are simple to fix.

3. COMPRESSOR FAILURE:

A compressor is made to pump air exclusively. Hence, if water, dust, or another substance like oil gets in the compressor, it should work a lot tougher to keep the ac procedure going. The outcome is an overworked compressor that would only quit working because it cannot tackle the non-air materials. The cost to change a compressor could range between 300 to 1000 dollars plus the labor cost. 

4. CONDENSER BLOCKAGE:

Condensers transform gas into liquids, so more firm materials like dirt do not agree with them. A piled-up of materials over time could cause a blockage as the layers gather on the coils, avoiding the refrigerant from cooling down properly. Regardless of cold air, your AC vent would pump hot air in the cab, which is the last thing you want on a hot day. 

5. CONTAMINATION:

The AC functions by turning a refrigerant into a liquid and then back into a gas to make cold air. There is as well a procedure for turning hot air into cold air. These procedures could cause mold to develop in the AC unit. If left unchecked, this mold could spread throughout the system and cause issues. 

6. STUCK BLOWER RESISTOR: 

Sometimes, the blower resistor could get stuck, avoiding you from changing the speed of the airflow through the fan. This is yet another easy issue that is a simple fix. 

AC PROBLEMS SIGNS:

There are a lot of signs that your truck is having air conditioning issues. Being alert to and noting these signs could aid recognize what is going on and how to fix the issue.

- LOW AIR PRESSURE

- BLOWING HOT AIR

- LEAKAGES AND STAINS

- WEIRD NOISES

- BAD ODORS

Should you notice any of these signs, have a mechanic service your vehicle. Fixing smaller issues early could avoid them from becoming the biggest issues.

AVOIDING AC ISSUES:

Like any other parts of your Commercial Truck Repair near me, regularly checking and sustaining the ac system is the finest way to catch issues or avoid them completely. 

- Daily check for leakages by using the dye test to see if any refrigerant is leaking out. Ensure your hose fittings are tight.

- Refill the refrigerant from time to time because it could run out after sufficient use. You need to place the low-pressure valve to recharge the system while being cautious to not overcharge it. 

- Check filters and vents for dirt, dust, and grime layers piled up. You might even find mold to remove. 

- Eventually taking your truck to a professional truck repair service for checking and maintenance is the finest choice. It would cost a little more, but a pro would exactly know what to look for and how to fix any issues they encounter. 

- Keep a checklist handy to record the date of the checking or maintenance and any installation of new parts. 

Location: Milton, ON, Canada

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