Summer Car AC Problems? Here’s How to Fix Them Fast

Many AC failures and malfunctions in a car are initially minor and offer warning signs that the problem can be fixed relatively inexpensively. An ineffective or poorly functioning AC in your vehicle can quickly lead to an unbearable ride, particularly on long journey, or while stuck in a traffic jam. Thankfully, many AC faults and malfunctions in cars are initially small and give warning signs that can lead to the problem being fixed relatively easily. Throughout this article, we are going to talk about common AC problems during summer, the reasons for such faults, and some remedies for the problem.

1. AC Blowing warm-but not hot Air.

If you turn the AC to the coldest temperature you can on the setting and it only produces warm or slightly cool air, this is the most common AC fault reported by drivers.

Common Causes;

Low refrigerant gas
Leak in the system of the refrigerant
Compressor failure
Dirty condenser
Electrical fault
Troubleshooting

2. Air Flow from Vents is Not Strong enough

In some cases the AC is cooling but the air is coming out of the vents is weak.

Possible causes

• Clogged cabin filter
• Dust built up in the air vents
• Slow or failed blower motor
• Blocked air flow system

Solution

The first step should be to replace the cabin air filter. A clogged cabin filter restricts airflow, causing the AC to overwork. If a new cabin filter does not resolve the problem, check the blower motor. Cleaning out the vents will also enhance airflow.

3. A/C Loses Cooling power at Idling Speed

There are a number of cars out there that will give you the benefit of a cool cabin when you are driving, but the coolness is no longer provided when the vehicle is stationary (in a traffic jam for example).

This problem is most likely related to:

• An incorrectly working cooling fan.
• A dirty condenser.
• A weakened compressor.

Outside air is what enables the A/C to maintain cool temperatures at driving speeds. However, when the vehicle is not in motion the cooling fan takes over the job of maintaining the condenser at a suitable temperature. The incorrect working of this fan has negative consequences.

Remedy

A technician should check:

• Cooling fans.
• Fan motors.
• The state of the condenser.
• The wiring that supplies the fan motors.

Cleaning of the condenser is likely to assist cooling.

The first thing that can be checked is the level of refrigerant gas within the system. It’s typically the refrigerant which is too low in the system, which results in the lack of cool air.

However, if the gas is too low in the system it may also be a case of the refrigerant is escaping somewhere from the AC system, in this case simply filling the system up will only work for a very short period before you run out of gas again.

The problem can be assessed with a qualified mechanic and they will check for leaks in the system and fill the refrigerant correctly.

4. It smells bad coming from the AC.
   

When you turn on the AC in your car and smell something foul coming from it, that generally suggests moisture and/or dirt build-up.

Potential Causes
Mold or bacteria
Clogged cabin filter
Moisture inside vents
Drain clogged

Solution
Cabin filter should be replaced and the vents should be cleaned. Professional cleaning services for the car AC will clean out the bacteria and purify the air in your car. In order to avoid this type of odor from occurring in your car, turn off the AC a few minutes before you are to reach your destination. Allow the fan to run to air out the moisture. This helps avoid the buildup of mold.

5. Odd sounds while the AC is running.

If your AC makes any kind of clicking, squealing, or grinding noises while it is on, there is a good chance there is something wrong within the system.

Causes
Loosely installed belt
Broken compressor
Worn-out bearings
Defective blower motor
Fixes
Listen to these noises as mechanical failures don’t happen overnight, but it is better to not let a small issue turn into a big repair. Get your system checked out immediately.

6. Water pooling on interior floors

If you have discovered water pooled on the passenger side floor it may be that your AC drain line is clogged.

How it happens

When your AC runs it dehumidifies the air, creating condensation that normally drains from the vehicle on the passenger side undercarriage of your car. When this line is blocked, water remains in the AC system and begins to seep into the interior, wetting the carpets and floor.

7. Issues with A/C compressor.

The compressor is also an essential part of the air conditioning unit. Probably, it will not work on the A/C system if the A/C compressor is faulty.

Common Signs of a Failed A/C compressor:AC does not cool anymoreOdd noises are heard from A/C unitA/C compressor will not engageAC unit constantly turns on/offSome Air Conditioning Compressor repairs that are possible:Sometimes air conditioning compressors are repairable but at other times replacement of the entire air conditioning compressor is necessary. Regularly scheduled maintenance of your A/C system can help your A/C compressor last longer.

This issue can be remedied by clearing the AC drain pipe. Continued water leakage will ruin the interior of your car and can also lead to a musty odor over time.

8. AC is slow to cool

AC eventually cools, but it takes much longer than usual: it may indicate an underlying problem.

Common Issues:
Low refrigerant levels
Condenser that’s dirty

The compressor is weak

The cabin air filter is obstructed
Thefix AC thorough inspection to determine the issue before it develops into a more serious problem
Servicing and cleaning the system will often restore cooling almost immediately

tips to keep your car’s AC in tip-top shape.
Preventative measures to prevent costly repairs during the peak summer heat
Clean cabin filters regularly- Clean filters allow for more air to flow into the cabin, improving cooling efficiency.
Run AC often, even during cool months- Running the system frequently helps keep the various seals and moving parts lubricated and in good shape.
Park in the shade- Parking in the shade will keep heat from building up in the car, alleviating pressure on your AC system.
Use sunshades- A windshield sunshade can dramatically lower interior car temps and reduce demand on your AC.
Get AC servicing periodically- Regular inspections can help you find leaks or weaker components early before they become a problem.

AC warning signs that you should never ignore.
Get your car’s AC examined immediately if:
Warm air from your vents
A burning smell
Loud noises
Airflow is too weak
Water is leaking
The dashboard is getting excessively hot
You can avoid larger expenses by performing the repairs as soon as the first warning signs appear.