5 AC Fixes You Can Try Before Calling a Technician

When your air conditioner suddenly stops cooling, it’s easy to panic—especially during the middle of a hot Colorado Springs summer. But before you reach for the phone to call in the pros, there are a few simple fixes you can try yourself.

At Affordable Plumbing, Heat & Electrical, we believe in empowering homeowners with the knowledge to handle small AC issues on their own. Here are 5 common air conditioner problems you might be able to fix yourself—and when it’s time to bring in the experts

🔧 1. Check Your Thermostat Settings

Let’s start with the easiest fix. Sometimes, the thermostat gets accidentally switched from “cool” to “heat” or “fan only.” This is especially common after power outages or when kids (or pets!) get curious.

DIY Fix:

  • Make sure the thermostat is set to “cool.”

  • Set the fan to “auto,” not “on,” so it only blows air when the system is actively cooling.

  • Try lowering the temperature by a few degrees to see if the AC kicks on.

🧼 2. Replace a Dirty Air Filter

A clogged or dirty air filter is one of the most common reasons for poor airflow or warm air. If your filter hasn't been changed in a while, it could be choking your system.

DIY Fix:

  • Turn off your AC and check the filter.

  • If it’s dusty, gray, or visibly clogged, replace it with a new one.

  • Filters should typically be changed every 30–90 days, especially in Colorado’s dusty climate.

🌬️ 3. Inspect Your Vents and Registers

Blocked or closed vents can restrict airflow and make it feel like your AC isn’t working—when really, the cool air just can’t circulate properly.

DIY Fix:

  • Walk through your home and make sure all vents are fully open.

  • Remove furniture, rugs, or curtains that may be blocking them.

  • Vacuum any dust buildup from the registers.

🌿 4. Check the Outdoor Unit (Condenser)

Your outdoor AC unit needs space and airflow to work properly. If it’s covered in leaves, grass, or debris, it may be struggling to release heat.

DIY Fix:

  • Carefully clear away leaves, dirt, or overgrown plants around the condenser.

  • Leave at least 2–3 feet of open space around the unit.

  • Make sure nothing is covering or sitting on top of it.

Safety Tip: Never stick your hands inside the unit or remove panels—leave that to a professional.

⚡ 5. Reset the System at the Breaker

If your AC isn’t turning on at all, the issue might be electrical. A tripped breaker can cut power to the system without warning.

DIY Fix:

  • Locate your electrical panel.

  • Find the breaker labeled “AC” or “cooling system.”

  • If it’s tripped, flip it off and then back on.

  • Wait a few minutes to see if the system resets.

🛠️ Still Not Working? It’s Time to Call a Professional

If you’ve tried these simple steps and your AC still isn’t cooling, it could be due to:

  • Low refrigerant levels

  • Frozen evaporator coils

  • Compressor failure

  • Damaged or leaking ductwork

  • Electrical or sensor issues

These problems require professional tools and expertise to diagnose and fix safely.

🧰 Call Colorado Springs’ Trusted AC Experts

At Affordable Plumbing, Heat & Electrical, we’re here when DIY solutions aren’t enough. Our experienced, licensed HVAC technicians will get your system back up and running fast—so you can stay cool and comfortable all summer long.

✅ Fast AC repair in Colorado Springs
✅ Upfront pricing, no surprise fees
✅ Emergency service available
✅ Trusted since 2001

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