3 Common A/C Problems and How to Fix Them

manchester mechanic

When the summer heat kicks in, a malfunctioning car air conditioner can quickly turn your daily commute into an uncomfortable experience. Fortunately, most A/C issues stem from a few common problems that are relatively easy to diagnose and sometimes even fix yourself. For the issues that require a professional, our team at Redman’s Automotive is here to help when you need a reliable mechanic in Manchester.

 

Here are the three most frequent car air conditioner issues and how you or your Manchester mechanic should address them.

 

Weak or No Cold Air

A lack of cool air is the most obvious sign that something’s wrong. If your A/C is blowing warm air, low refrigerant levels are often the culprit. Over time, refrigerant can leak out, reducing the system’s cooling efficiency.

To resolve this issue, begin by checking the refrigerant level using a pressure gauge. If it’s low, a recharge kit can help refill it. However, if the system needs constant recharging, it’s most likely because the refrigerant is leaking. In that case, your Manchester mechanic should inspect it for damaged hoses, seals, or the evaporator core.

 

Strange Noises When the A/C Is On

Unusual sounds, such as rattling, banging, or squealing, can indicate several issues. These may include a failing A/C compressor, a loose serpentine belt, or debris in the blower motor.

How do you fix this problem? First, check for debris in the vents and the blower fan. If that’s not the issue, inspect the belt for wear and tear. Replacing a worn belt is usually inexpensive. If the noise is coming from the compressor itself, professional diagnosis is recommended, as this component can be costly to replace.

 

Foul Odors from Vents

If your car A/C smells musty or moldy, it’s likely due to mold or bacteria growing in the evaporator. Moisture buildup in the system creates a breeding ground for microorganisms.

There are a few ways to address this issue.  Start by replacing the cabin air filter. It’s a simple, often overlooked fix. If the smell persists, an A/C disinfectant spray can be applied through the air intake. For persistent odors, a deep cleaning of the evaporator may be necessary.

 

Need a Mechanic in Manchester? Visit Redman’s Automotive

Regular maintenance, like changing the cabin air filter and running the A/C at least once a week—even in winter—can help prevent these issues. To ensure your car can take the summer heat, contact our team to schedule a service appointment at Redman’s.