When the heat is on, your air conditioner is essential. But like any appliance, it can break down unexpectedly. Proper maintenance can prevent many issues, while some require professional repairs. This blog covers common AC problems, DIY fixes, and when to call the pros—helping you stay cool without costly surprises.
Understanding Common AC Problems
Air conditioners can face issues that disrupt performance. Here are common problems and how to spot them:
1. Frozen Coils
Causes: Clogged filters, low refrigerant, or dirty coils
Signs: Weak airflow, warm air, visible ice on coils
2. Water Leaks
Causes: Blocked drain, broken drain pan, excess condensation
Signs: Water pooling near the unit, damp walls, or stains
3. Electrical Failures
Causes: Faulty wiring, tripped breakers, worn-out components
Signs: AC won’t start, keeps shutting off, unusual noises or smells
4. Refrigerant Leaks
Causes: Corroded coils, damaged lines, poor installation
Signs: Reduced cooling, hissing sounds, or frozen coils
DIY Fixes and Maintenance Tips
While some AC issues need a pro, here are quick tips to handle minor problems and avoid emergencies:
1. Check & Clean Filters
Dirty filters reduce efficiency and cause frozen coils.
- Turn off the AC, remove the filter, clean or replace it, and reinstall.
- Clean/replace every 1-2 months during heavy use.
2. Clear the Drain Line
Blocked drain lines cause leaks.
- Use a vacuum or snake to clear blockages and flush with water/vinegar.
- Do this quarterly to avoid buildup.
3. Clean the Coils
Dirty coils lower performance and can freeze.
- Turn off the AC, gently clean with a soft brush or coil spray.
- Clean annually or more often in dusty areas.
4. Check the Thermostat
AC not turning on?
- Replace batteries, check settings, and replace the thermostat if needed.
5. Follow Seasonal Maintenance
- Clean filters and check the system before summer.
- Schedule a professional tune-up every spring.
When to Call a Professional
If you notice any of these AC problems, call a pro:
- Cooling Issues – AC isn’t cooling, possibly due to a refrigerant leak or bad compressor.
- Electrical Problems – AC won’t turn on or trips breakers, needs expert repair.
- Noises or Smells – Grinding, rattling, or burning smells signal mechanical or electrical issues.
- High Energy Bills – Rising costs could mean your AC is running inefficiently.
Keep Your Cool Year-Round
Your AC keeps your home comfortable, especially in summer. Regular maintenance helps you avoid costly issues. When DIY fixes aren’t enough, call a reliable repair service. Share this post to help others stay cool!