9 Common AC Problems and How Van Bremen’s Technicians Fix Them

When summer temperatures rise in Pennsylvania and West Virginia, a malfunctioning air conditioner can quickly turn your home into an uncomfortable sauna. Whether your AC is blowing warm air, making strange noises, or not turning on at all, Van Bremen’s Heat & Air is here to help. Our experienced technicians have seen it all—and fixed it all.

Here are 9 of the most common AC problems we encounter and how we resolve them to keep your home cool and comfortable.

1. AC Blowing Warm Air

What’s Going On: This is one of the most common complaints. It could be due to a refrigerant leak, a dirty evaporator coil, or even a faulty thermostat.

How We Fix It: Our techs check refrigerant levels, inspect coils for buildup, and test thermostat calibration. If there's a leak, we locate and repair it before recharging the system.

2. AC Won’t Turn On

What’s Going On: This could be a tripped breaker, a blown fuse, a thermostat issue, or a more serious electrical problem.

How We Fix It: We start with a full electrical check, inspecting your thermostat, power supply, and internal system controls to identify the root cause.

3. Strange Noises (Buzzing, Clicking, or Banging)

What’s Going On: Unusual noises often indicate loose or broken components, motor issues, or debris caught in the fan.

How We Fix It: Our team inspects moving parts and housing components to tighten, repair, or replace as needed. We’ll also make sure the fan is clean and unobstructed.

4. AC Turning On and Off Frequently (Short Cycling)

What’s Going On: Short cycling can happen when an AC unit is too large for the home, or due to issues with airflow, refrigerant, or electrical parts.

How We Fix It: We check for sizing mismatches, clogged filters, low refrigerant, and thermostat location. Our goal is to restore proper cycles that maintain comfort and efficiency.

5. Weak Airflow

What’s Going On: If you feel little to no air from your vents, the culprit could be a clogged filter, blocked ductwork, or a failing blower motor.

How We Fix It: We clean or replace filters, inspect ductwork for obstructions or leaks, and evaluate the blower motor for wear or electrical faults.

6. Frozen Evaporator Coils

What’s Going On: A frozen coil is often caused by low refrigerant, poor airflow, or a dirty coil surface.

How We Fix It: After thawing the coil, we inspect refrigerant levels, air filters, and airflow issues to prevent it from happening again.

7. Water Leaking Around the Unit

What’s Going On: Your AC produces condensation that normally drains away. If that line is blocked, it can cause leaks around the unit.

How We Fix It: We clear the condensate drain line and check for cracks or clogs. If the drain pan is damaged, we replace it to prevent water damage to your home.

8. High Humidity Indoors

What’s Going On: Your AC should naturally remove humidity. If it's not, the system may be oversized, running too short, or the coil could be dirty.

How We Fix It: We ensure your unit is properly sized, running efficiently, and that the evaporator coil is clean and functioning. We can also recommend whole-home dehumidifier solutions.

9. Thermostat Not Responding

What’s Going On: Sometimes, the problem isn’t the AC itself—it’s the thermostat. If it's not reading the temperature correctly or not sending signals to your unit, your system won’t run properly.

How We Fix It: We check thermostat settings, wiring, and battery levels. In some cases, upgrading to a smart thermostat can solve the issue and increase efficiency.

Trust the Experts at Van Bremen’s Heat & Air

Whether it’s a quick fix or a full system repair, Van Bremen’s Heat & Air is your go-to HVAC partner in Somerset County and Morgantown. Our team is trained to diagnose issues accurately and fix them fast—so you don’t have to sweat it out.

Having AC Troubles? Let’s Get You Cool Again.

Call Van Bremen’s Heat & Air today at (814) 442-8618 or schedule your service online. We’ll inspect your system, explain the issue clearly, and get your home back to comfortable in no time.

We fix it right the first time—because comfort shouldn't be complicated.