Why is my Lexus NX AC not working?

Possible Causes of Lexus NX AC Not Working
There can be several reasons why the AC in your Lexus NX is not working. Some common causes include:
1. Faulty Blower Motor: The blower motor is responsible for blowing hot or cold air through the AC vents. If the blower motor stops working due to a fault, the air will not flow out of the vents when you switch on the AC in your NX.
2. Electrical Issues: A bad electrical connector, broken wire, or a defect in the climate control unit can also cause the blower motor to stop working.
3. Blown Fuse, Bad Relay, or Control Module Malfunction: These components are essential for the operation of the blower motor. If any of them are faulty, the AC may not work properly.
4. Dirty Cabin Air Filter: A dirty cabin air filter can hinder the normal operation of the air conditioning system. It can reduce cooling, heating, and air flow, and put unnecessary strain on the entire AC system.
5. Refrigerant Leak: A refrigerant leak can cause the AC to blow warm air. Low or overcharged refrigerant levels can also lead to poor cooling performance.
6. Compressor Malfunction: The compressor is responsible for pumping the refrigerant throughout the AC system. If it malfunctions, the AC may not cool properly.
7. Other Possible Causes: Other potential causes include a dirty or clogged condenser or evaporator, a faulty blend door actuator, a defective evaporator temperature sensor, a bad AC pressure sensor, or a bad fuse or relay.
Steps to Diagnose and Fix the Issue
To diagnose and fix the AC problem in your Lexus NX, you can follow these steps:
1. Check the Blower Motor: Verify if the blower motor is working properly. If it’s not, it may need to be replaced or repaired.
2. Inspect Electrical Connections: Check for any loose or damaged electrical connections related to the AC system. Repair or replace any faulty components as necessary.
3. Inspect the Cabin Air Filter: Check the condition of the cabin air filter. If it’s dirty, replace it to improve air flow and overall ventilation.
4. Check for Refrigerant Leaks: Inspect the AC system for any refrigerant leaks. If a leak is found, it should be repaired, and the refrigerant levels should be properly adjusted.
5. Inspect the Compressor: Verify if the compressor is functioning correctly. If it’s not, it may need to be repaired or replaced.
6. Consider Professional Assistance: If you’re unsure about diagnosing or fixing the issue yourself, it’s advisable to take your Lexus NX to a qualified mechanic or dealership for a thorough inspection and repair.
Remember, these steps are general guidelines, and the specific actions required may vary depending on the exact cause of the AC problem in your Lexus NX. It’s always best to consult a professional for an accurate diagnosis and appropriate repairs.
I hope this helps! Let me know if you have any other questions.

How much does it cost to replace a Lexus air conditioner?

The average cost for a Lexus RX350 AC Compressor Replacement is between $1,146 and $1,504. Labor costs are estimated between $361 and $455 while parts are priced between $785 and $1,049. This range does not include taxes and fees, and does not factor in your unique location. Related repairs may also be needed.

Why is the AC in my Lexus blowing out warm air?

Unusual Noises When AC is On: If you’re hearing strange noises from the AC, the AC belts might be worn out or the compressor could be failing. AC Blowing Warm Air: This can happen due to a clogged condenser, a faulty compressor, or a leak in the refrigerant.

Why is my AC running but not blowing cold air?

There are a number of reasons why your air conditioner might be running but not cooling. It could be an issue with the thermostat, the compressor, or the evaporator coils. Or, it could simply be clogged with dust and debris, which is preventing it from working properly.

Where is the AC reset button?

It’s a small, red button usually located on or around the unit. The button should have a clear ‘reset’ label. Once you find the button, press it for around three seconds and observe the AC. Check whether the AC kicks on immediately and if it doesn’t, press the button again for another three seconds.

Why is my AC running but not cooling in my car?

The most common causes of broken air conditioning are leaks or compressor issues. If your air is blowing cool but not cold, the problem could be a clogged filter, cooling fan problem, radiator trouble, or it could simply be that you need to recharge your AC.

Is AC covered under Lexus warranty?

Covers the repair or replacement of components that fail under normal use due to a defect in materials or workmanship, such as: engine, transmission, steering, brakes (excluding rotors and pads), fuel system, cooling, A/C and heating systems, electrical, and restraint systems.

Is there an AC reset button?

Look for it first around on the exterior of your machine, especially along the bottom edge near the ground. An AC’s reset button is typically red and visible, so it should be easy to spot. If you don’t see a reset button on the outside, it could be located inside the unit behind the service panel.

How to fix Lexus AC?

How To Troubleshoot Lexus Auto AC

1. Check the Filter. Very often, the reason for reduced power of your Lexus auto AC is a dirty filter.
2. Examine the Condenser.
3. Check for Refrigerant Leaks.
4. Consider the Compressor.
5. Shop for the Vehicle You Are Looking for at Prestige Lexus.

Why is my Lexus AC not blowing cold air?

Your vehicle’s air-conditioning stopped working likely because of a bad compressor or a freon leak. While these are the simple to spot reasons that the air-conditioner isn’t cooling in your car, a bad belt or a dirty cabin air filter could also be the problem.

How do I reset my Lexus AC?

And come back to a stop turn the truck off or the car put it back in diagnostic mode and you see if you still have any codes. Easy as that.