Expert Auto AC Repair in Memphis, TN

• Hot air blowing from the A/C
• No cool air through the vents
• Excess moisture around the compressor
• Weak or no airflow
• Strange odors inside the cabin
• Weak airflow

One common issue is mold and mildew buildup inside the evaporator caused by the moisture from the cooling process. When this happens, it blocks air from reaching the vents. A loose hose, often a blower hose, can also disrupt airflow. Sometimes, simple ventilation issues can stop your air conditioning system from working. Additionally, if there are leaks from seals, the entire unit could be compromised.

Why Is My AC Not Blowing Cold Air?

• Freon leaks caused by faulty O-rings, hoses, or seals
• Blocked expansion tubes or refrigerant hoses
• Damaged or malfunctioning condensers or evaporators
• Vacuum leaks
• Faulty compressor or compressor clutch
• Faulty blower motor or resistor
• Broken switches, fuses, relays, or control modules

What Causes an Air Conditioner to Leak?

Age and moisture are the most common causes of car air conditioner leaks. Over time, rubber seals and hoses lose flexibility and become brittle, allowing pressurized Freon to escape. When moisture enters the system, it can mix with the Freon and create a corrosive acid, which can damage the internal components of your air conditioning system.

Our Performance Checks

Our experienced technicians will thoroughly check your unit to pinpoint the problem. These tests include:

• Visual inspection of all A/C components
• Performance test of the unit
• System state of charge test
• System control test
• Leak test using an approved leak detector

These checks help us identify issues affecting AC performance, such as Freon leaks, worn filters or condensers, loose wiring, or heat interference from the engine.

Components We Repair or Replace

Once our technician diagnoses the issue, the necessary repairs or replacements may include:

• O-rings, seals, or hoses
• Compressors or compressor clutches
• Blower resistors or motors
• Evaporators or condensers
• Driers, receivers, or accumulators
• Switches, controls, modules, or relays

Common Automotive AC Repair Services

Refrigerant Recharge

A refrigerant recharge, also called an AC recharge, is a common service performed when the system is low on refrigerant (Freon). Over time, leaks or evaporation can cause refrigerant levels to drop, reducing the AC’s cooling capability. We will refill the system to the appropriate levels, ensuring it blows cold air again.

Leak Detection and Repair

If there’s a refrigerant leak, we can perform a leak test to identify the source. This involves using dye or an electronic leak detector to find small or hidden leaks in components like hoses, seals, or condensers. Once the leak is located, we will repair or replace the faulty part.

Compressor Repair or Replacement

The compressor is the heart of the AC system and is responsible for pressurizing the refrigerant and circulating it through the system. If the compressor fails, the entire system stops working. Common repairs include replacing the compressor, its clutch, or electrical components that control it.

Condenser Replacement

The condenser is critical for cooling the refrigerant after it’s compressed. If it becomes clogged or damaged (usually from debris or corrosion), it must be replaced. This service restores the AC’s ability to cool the refrigerant effectively.

Evaporator Replacement

The evaporator absorbs heat from the air inside the cabin, cooling it down. If the evaporator is clogged, leaking, or damaged, it can affect the system’s performance and may require replacement.

Blower Motor Repair

The blower motor is responsible for pushing air through the AC vents into the cabin. If the blower motor or its resistor fails, airflow may be weak or nonexistent. Repair or replacement of this component restores proper air circulation.

Expansion Valve or Orifice Tube Replacement

These parts control the amount of refrigerant that enters the evaporator. If they become clogged or malfunction, they can restrict refrigerant flow, preventing the AC from cooling properly. Replacing these components can fix issues related to poor cooling performance.

Thermostat and Control Unit Repair

Faulty thermostats or control modules can cause the AC to malfunction, either by failing to regulate temperature properly or not sending the right signals to other parts of the system. Repairs or replacements of these electronic components ensure accurate temperature control.

AC System Flush

Over time, debris and contaminants can build up in the AC system, clogging various components and reducing efficiency. A system flush cleans out these particles, allowing the refrigerant to flow freely and preventing blockages that can lead to further issues.

AC Filter Replacement

The cabin air filter plays a role in keeping contaminants out of the AC system and maintaining air quality inside the vehicle. A clogged or dirty filter can reduce airflow and cause the system to work harder. We can do filter replacements for optimal performance.

Thermal Expansion Valve (TXV) Repair

The TXV regulates the amount of refrigerant going to the evaporator. If it’s faulty, too much or too little refrigerant can enter, affecting the cooling performance. Replacing the TXV ensures the proper flow of refrigerant.

System Pressure Check

We often perform a system pressure check to ensure the AC is operating within the correct pressure range. If pressures are too high or too low, it can indicate issues like a refrigerant leak or a failing component that requires repair.