Your day can be quickly ruined if the air conditioner in your automobile breaks down unexpectedly. Leaks or compressor problems are the two most frequent reasons for faulty air conditioning.
By becoming knowledgeable about car AC repair, you can save yourself some hard cash. Let’s begin!
1. DIAGNOSE YOUR CAR AC PROBLEMS: Is You’re A/C Just Cool?
- Keep your air conditioner on, make sure the cooling fans on the condenser or radiator are operating.
- Check for any obstructions that can prevent air from passing over the condenser, such as leaves, bugs, or dirt.
- Always use a manifold gauge set to check the pressures in the system.
2. CHECK THE AC COMPRESSOR FIRST
- While the engine is running, increase the fans’ speed, turn the A/C to the maximum cool setting and check that the compressor’s clutch is engaged. The gauge should remain steady while the compressor is running and should maintain the recommended pressure as you add more refrigerant.
- Use a voltmeter to determine whether voltage is reaching the compressor. If voltage is present and the clutch is not engaged, it might be damaged.
3. LEAKS ARE THE MAIN CAUSE OF PROBLEMS
The most frequent issue with the air conditioning system is leaks.
- Verify that all fittings are secure by looking around them.
- Verify the O-rings sealing the pressure switches on the back of some compressors as well as the front seal.
- Schrader Valves should be examined.
- Condenser pinholes should be looked for.
- Use UV light to inspect the area where the evaporator drains condensate. Oil or color may occasionally be seen.
STILL UNCERTAIN? CHECK THE AC COMPRESSOR AND CLUTCH COMPONENTS.
Leaks in one or more seals or the compressor itself are frequent issues. The compressor’s worn parts are a common source of particle pollution. The engagement clutch, also known as an AC clutch, can malfunction and render the compressor useless. Look for obvious system leaks that are green and oily if the refrigerant level is low.
ACCUMULATOR/DRIER FOR AC
Moisture is accumulated and absorbed by the accumulator/drier. Moisture can harm the AC compressor.
EXPANSION VALVE / AC ORIFICE TUBE
Your air conditioning system’s expansion device and orifice tube filter and control the flow of refrigerant. You can have an expansion valve or an orifice tube, depending on your car. Failure is primarily caused by contamination. The expansion device may be at fault if the system pressures are excessively high or low.
CONDENSER AC
The radiator-like AC condenser functions in tandem with the radiator fan (s). The hot (gaseous) refrigerant that has absorbed heat from inside the car is cooled by the air that passes over the AC condenser tubes. This transforms the refrigerant back into liquid form
EVAPORATOR CORE FOR AC
The air conditioner’s evaporator behaves like a big ice cube with holes in it. The hot cabin air is allowed to pass through the core, quickly cooled, and then blown back into the cabin. The blower motor assembly for the AC heater produces the cool air that is felt coming from the dash vents.
The issue is a leak brought on by aging and wear is the leading cause of failure. The most effective technique to check for leaks is with an electronic leak detector. Pay close attention to the water drain tube in the AC evaporator box
You can bring your car to princeton auto repair. We will solve the problems of your Car AC or any mechanical problem that you have.