2012412AM 4472803050 3P90396110 12V Auto Parts AC Compressor For Kubota WXTK178

Parameter:

Pictures

Testing the functionality of AC conditioning compressor

1. Visual Inspection

Check for Physical Damage: Inspect the compressor for cracks, leaks, or signs of wear on the housing, hoses, and connections.

Inspect Belts and Pulleys: Ensure the compressor belt is not worn, cracked, or loose. Check the pulley for smooth rotation and proper alignment.

Look for Oil Stains: Oil stains around the compressor or A/C lines may indicate a refrigerant leak.

2. Electrical System Check

Test the Clutch:

Turn on the A/C system and observe if the compressor clutch engages (you should hear a click and see the clutch plate move).

If the clutch does not engage, check the power supply, fuses, relays, and wiring for faults.

Measure Voltage: Use a multimeter to check the voltage at the compressor clutch connector. It should match the vehicle’s system voltage (typically 12V).

Check Ground Connection: Ensure the compressor has a proper ground connection.

3. Pressure Testing

Connect Manifold Gauges: Attach a manifold gauge set to the high-pressure and low-pressure service ports on the A/C system.

Measure Pressure:

Start the engine and turn the A/C to the maximum cooling setting.

Compare the pressure readings (low-side and high-side) with the manufacturer’s specifications.

Abnormal pressure readings (too high or too low) may indicate a problem with the compressor or other components (e.g., clogged expansion valve, refrigerant overcharge, or undercharge).

Check for Pressure Balance: Turn off the engine and observe if the high-side and low-side pressures equalize. If they do not, the compressor’s internal valves may be faulty.

4. Performance Test

Cooling Efficiency: Run the A/C system and measure the temperature of the air coming from the vents. It should be significantly cooler than the ambient temperature (typically 8–15°C or 45–60°F at the vents).

Listen for Unusual Noises: Strange noises (e.g., grinding, rattling, or squealing) may indicate internal compressor damage or bearing failure.

Monitor Compressor Operation: Ensure the compressor cycles on and off at regular intervals. Continuous operation or failure to cycle may indicate a problem.

5. Leak Testing

Use a Refrigerant Leak Detector: Check for leaks around the compressor seals, hoses, and connections.

UV Dye Test: Add UV dye to the refrigerant and use a UV light to detect leaks.

Soap Solution Test: Apply a soapy water solution to connections and look for bubbles, which indicate leaks.

6. Compressor Oil Level Check

Inspect Oil Level: The compressor requires the correct amount of oil for lubrication. Too little oil can cause overheating, while too much oil can reduce cooling efficiency.

Check for Contamination: If the oil appears dirty or contains metal particles, the compressor may be damaged internally.

7. Belt and Pulley Test

Belt Tension: Ensure the belt driving the compressor is properly tensioned. A loose belt can cause slippage, while an overtightened belt can damage the compressor bearings.

Pulley Rotation: With the engine off, manually rotate the compressor pulley to check for smooth operation. Resistance or grinding noises may indicate bearing failure.

8. Advanced Diagnostics

Scan for Error Codes: Use an OBD-II scanner to check for any A/C-related error codes stored in the vehicle’s computer.

Check Refrigerant Levels: Use a refrigerant scale to ensure the system has the correct amount of refrigerant. Overcharging or undercharging can affect compressor performance.

Common Issues to Look For

Compressor Not Engaging: Could be due to low refrigerant, electrical faults, or a faulty clutch.

Poor Cooling Performance: May indicate a failing compressor, low refrigerant, or a clogged system.

Excessive Noise: Often caused by internal compressor damage or bearing failure.

Refrigerant Leaks: Commonly occur at seals, hoses, or connections.

Guangzhou Wei Xing Automobile Air Conditioning Parts Co., Ltd.

        Guangzhou Wei Xing automobile air conditioning parts Co., Ltd. was founded in 1998, is an automobile air-conditioning compressor factory, 20 years specializing in automotive air-conditioning compressor production, research and development, processing services. 

        Stable quality and professional services have been recognized and supported by customers in more than 50 countries all over the world. In order to meet the needs of customers and better service customers, the company set up sale shop in 2005, the main sales of own brand "WNRLN" and foreign well-known brands of compressors and automotive air-conditioning systems related accessories.

       With the globalization of the world and the development of the Internet, the company began to open the official website in 2015 to realize the diversification of online and offline sales,allowing customers to have a better shopping experience. In the past 20 years, we have developed a professional technical team and sales team to provide professional overall solutions and provide the whole set of air-conditioning design and production services. Professional attention enables us to go further, and it is our mission to bring China's good quality to the whole world.

Your Best Choice!

At our automotive air conditioning compressor company, we are dedicated to providing exceptional service to our customers. Our service philosophy revolves around three key principles:Service, Quality Assurance,customer satisfaction.

First and foremost, we are committed to responsiveness in our customer service approach. We recognize that issues with air conditioning compressors can arise unexpectedly and may require urgent attention. That's why we have established a dedicated customer support team that is available around the clock to address any concerns or inquiries. Whether it's troubleshooting technical issues, providing guidance on installation and maintenance, or processing warranty claims, our team is always ready to assist our customers promptly and efficiently."After-sales service make permanent customer".

Secondly,we prioritize reliability in everything we do. We understand the critical role that air conditioning compressors play in the functionality of vehicles, especially in hot climates or during long journeys. Therefore, we ensure that our products are built to the highest standards of quality and durability. From the materials we use to the manufacturing processes we employ, reliability is at the forefront of our operations. Additionally, we offer comprehensive warranty coverage and after-sales support to instill confidence in our customers regarding the performance of our compressors.

Furthermore,We closely monitor market trends and customer feedback to identify areas for improvement and innovation. By staying at the forefront of technological advancements, we aim to deliver products that exceed our customers' expectations and set new industry standards.

In addition to these core principles, we place a strong emphasis on building long-term partnerships with our customers. We believe that open communication, mutual respect, and trust are essential for fostering successful business relationships. We actively seek feedback from our customers and use it to drive continuous improvement in our products and services. By aligning our goals with those of our customers and working collaboratively towards shared success, we aim to create value and sustainable growth for both parties.

We aim to be the preferred choice for automotive air conditioning solutions globally.