10 Expert Solutions When Your | Air Conditioner Won't Turn On

The Solutions You Should Try Before Calling In An Expert

Check the Power Supply

• • • Plug Check: Make sure your AC is snugly plugged in. Sometimes, a loose connection is all it takes to disrupt your cool comfort.
    • Circuit Breaker Inspection: Has your AC tripped the circuit breaker? If so, reset it and cross your fingers!
    • Fuse Box Examination: Check for any blown fuses and replace them if necessary. Remember, safety first!
    • Wiring Detective Work: Look for any loose or damaged wiring connections. If you spot any, you should call for professional repair.

Examine the Thermostat

Your thermostat is the brain of your AC operation. If it’s not functioning correctly, your entire system could be on strike.

• • • Your thermostat should be set to “Cool” mode. It sounds simple, but it’s an easy oversight!
    • Set the temperature a few degrees below the current room temperature. This should kickstart your AC into action.
    • If your thermostat is battery-operated, try replacing the batteries. Sometimes, all it needs is a little energy boost!
    • Check for any loose wiring connections at the thermostat.

Inspect the Air Filter

A clogged air filter can bring everything to a standstill.

• • • Remove and inspect your air filter. If it looks like it’s been through a dust storm, it’s time for a change.
    • Depending on your filter type, either clean it thoroughly or replace it with a fresh one.
    • Make a mental note (or better yet, set a reminder) to check your filter monthly. Your AC will thank you!

Clear the Condensate Drain Line

A clogged condensate drain line can trigger a safety switch, causing your AC to shut down immediately.

• • Find your condensate drain line it’s usually a PVC pipe near your outdoor unit.
  • Use a wet/dry vacuum to suck out any clogs.
  • If vacuuming doesn’t do the trick, try flushing the line with water.
  • Consider regular drain line cleaning to avoid future shutdowns.

Examine the Outdoor Unit

• • Ensure the outdoor disconnect switch is in the “On” position.
  • Remove any debris or overgrown vegetation around the unit. Your AC needs to breathe too!
  • When your system is on, check if the condenser fan is spinning. If it’s stationary, you might have a fan motor issue.

Inspect the Capacitor

The capacitor is like the heart of your AC’s electrical system. If it’s faulty, your compressor won’t start, leaving you in a hot mess.

• • • Look for signs of bulging or leaking on the capacitor. If it looks like it’s been to the gym (i.e., bulging), it’s likely faulty.
    • If you suspect a faulty capacitor, it’s time to call in the cavalry.

Check the Contactor

If the contractor is not making a good connection, your AC won’t start cooling.

• • • Inspect the contractor in the outdoor unit. Look for signs of pitting or burning.
    • If the contractor looks worse for wear, it’s best to have a professional replace it. Safety first!

Test the Compressor

• • • When your system tries to start, listen for a humming sound from the compressor.
    • If you hear humming but the compressor doesn’t start, it may have failed. Time to call for a professional diagnosis.

Look for Refrigerant Leaks

• • • Look for signs of oil around refrigerant lines. This could indicate a leak.
    • If you suspect a refrigerant leak, don’t try to fix it yourself. Refrigerant can be dangerous and requires professional handling.

Reset the System

Sometimes, your AC just needs a good old-fashioned reboot.

• • • Turn off power to the AC at the circuit breaker.
    • Wait 30 minutes. Use this time to practice your “It’s so hot” dance.
    • Turn the power back on. Cross your fingers and hope for the best!