Thank God!

The winter is finally over. The sun is shining and your spot on earth is finally warm again. Hot, even.

So hot it’s time to turn on the AC . . .  but it won’t turn on! So here you are, desperately looking for ideas on fixing that air conditioner that won’t start after the winter.

Typically, there are 3 things that may be the cause of your air conditioner refusing to start in the spring. So the first things you want to rule out are a tripped circuit breaker or blown fuse, if the emergency shutoff is engaged, or if you have a dirty filter.

Note that it’s while those are the most common reasons, there are others. I’ll list them below.

How To Fix An Air Conditioner That Won’t Start In The Spring

Follow these troubleshooting steps, and you should be up and running again. I’ll start with the common, simple things and move on to more problematic issues.

Check Your Thermostat

Sometimes it’s the simplest things. So make sure your thermostat is on the COOL setting and do a test. Simply adjust the temperature to about 5 degrees below what the thermostat is currently set at.

Did your AC kick in? If so, you’re good to go.

Check Your Filter

A clogged air filter will impede airflow through your system, and it may shut itself down to avoid damage.

If your filter is dirty, change it and see if the air conditioner turns on. And remember to changeor clean it regularly in the future.

Check For a Tripped Breaker or Blown Fuse

Depending on your home, you either have circuit breakers or fuses at your main electrical panel. Confirm that the breaker or fuse for your air conditioner hasn’t tripped or blown.

If there is any problem with the fuses, you should be able to replace them.

Air Conditioner Fuses
If more amps than the air conditioner can handle try to reach the unit, the fuse will blow to protect the condenser.

Check The Emergency Shutoff Switch

Your air conditioner should have a disconnect mounted outside close to your condenser unit. Make sure it hasn’t been switched to the off position.

Look For an Indoor Power Switch

You may have a switch that looks like a regular light switch located somewhere near your indoor unit. Make sure it’s switched on.

Make Sure Your Drain Pan and Condensate LineIsn’t Clogged

Your system can shut itself down if the drain pan is full. The cause of this is often a clog in your condensate line. Check for blockages, and get your condensate flowing freely again.

You can follow the steps in the video below to address a clogged drain line.

Does Your System Have A RESET Button?

Not all systems have a reset button, however, you can check on the outside condenser unit to see if it has one. If so, press and reset it to see if this helps. If there is no reset button at the condenser, you can also turn your system off at the thermostat. You’ll just want to wait at least 5 minutes before turning it back on again.

Blower Motor Problems

The fan on your system runs year-round, in both the heating and cooling seasons. If it’s old—and particularly if you don’t maintain your system—there is a chance it just refuses to start again after running all winter.

If your blower motor has seized there is a good chance your system won’t start at all.

If this is your problem, you’ll need to call a pro.

Finally, the Department of Energy published a handy list of the most common air conditioner problems that you can refer to as well.

Air Conditioner Blower Motor
It is the job of the AC blower motor to turn the fan, which causes air to move through the AC system. Any problem with it can prevent the system from starting.

What You Can Do Maintain Your Air Conditioner

Want your air conditioner to start every spring? Then keep it well maintained.

Here are several things you can doregularly to keep it running, year after year.

Before doing any of these make sure you turn the power to your air conditioner off. You can either do this at the shut off outside near your compressor unit or at the breaker or fuse box.

Keep The Area Around Your CondenserClean

Your condenser sits in the elements year-round, and it can take a beating. A lot of debris can also collect around it. So make sure to take away any twigs or leaves that may have collected close to it.

Also, don’t plant anything within two to three feet of your condenser.

Clean your Compressor and Condenser

Your condenser is located outside, inside the compressor unit.

Open up the fan cage that’s located on the top of the compressor and clean inside. There may be a buildup of leaves and other debris.

If dirt gets built up over the coils it can reduce the amount of heat they absorb—heat that is pulled from your home. This means your air conditioner has to work harder.

Putting a strain on your AC can reduce its lifespan, or lead to things like it refusing to start in the spring.

Here is a great walkthrough on how to clean your compressorunit.

Change Or Clean Your Filter Regularly

Making sure your air is passing through a clean filter is probably one of the most important things you can do to maintain your HVAC system. Fortunately it’s an easy thing to do as well.

A dirty or clogged air filter can reduce airflow and force your blower motor to work harder, which can eventually damage your system. Whether you have filters that are reusableor replaceable make sure you follow the replacement or cleaning schedule.

There is a little bit of leeway here depending on your household. For example, if you are a single person or a couple living in a home without pets, you can probably expand theamount of time necessary between replacements.

However, if you are a large family with several pets you would want to change your filter even more often.

Check The Fins

Over time, as your condenser sits outside in the elements, the fins get damaged and restrict airflow. And if you haven’t guessed it by now, anything that restricts airflow in your HVAC equipment is a bad thing.

There are several different tools on the market that you can purchase to help straighten your fins, and you can follow the directionsin the video below on how to do the job.

Inspect The Condensate Drain

If the condensate drain becomes clogged, which it will overtime, it can shut your system down. Especially if the drain pan begins to overfill. A float in the pan will signal a problem and as a precaution and shut off your air conditioner.

Regular maintenance of both the pan and the line willsave you from future headaches.


As you can see, there are several things to check if your air conditioner refuses to start in the spring.

Typically, the most common issues are a tripped circuit breaker, a blown fuse, or maybe the emergency shut off has been engaged.

 To recap, here are the other things you need to look into:

  • Check your thermostat
  • Check your filters
  • Look for an indoor power switch
  • Make sure your drain pan and condensate line aren’t clogged
  • Look for a reset button on your compressor
  • Make sure you have no motor problems

Any one of those things could stop your air conditioner from restarting. The good news is, with the exception of fixing or replacing a blower motor, they are relatively simple things you should be able to deal with yourself.

Hopefully, you found an answer to your problem, so thanks for reading through.

While you’re here, why not check out our related posts below? Maybe we can help you with something else as well.