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Home  »  Air ConditioningMaintenance   »   4 Things To Know Before Turning Your Air Conditioner Back On

4 Things To Know Before Turning Your Air Conditioner Back On

As Philadelphia’s winter weather slowly becomes spring and then summer

You’ll soon be reaching for that thermostat and turning the A/C back on, we’ve got some energy-reducing, repair-preventing tips for you.

As always EMCO Tech Heating & Cooling staff is here to help with your HVAC needs.

The top four things you should do before cranking the air conditioner include:

Air filter Check

Check outdoor unit

Take a look at your AC unit: Is it looking dirty and coils are clogged up with debris? Is there presence of rust or traces of oil?

Look at your thermostat settings

Test operation in different modes: Fan on/auto, AC/heat, Low batteries indicator.

Schedule Air Conditioning tune-up and maintenance

Click here to request AC Tune-Up

We’ll explain why each of these tips can make or break your summer comfort…

  1. Air Filter

Most homeowners don’t realize that their heater most likely shares a filter with their A/C unit. If you’ve been running heat for the past few months your filter has been sucking up and trapping air pollutants from the first use.

And, if your filter is clogged (and looks like the filter to the right) you need to change it immediately.

dirty ac filter
Clogged Air Filter

If you don’t get your filter changed a clogged filter will eventually choke your AC system. Yes, your A/C unit has to breathe. And if a thick layer of dirt/dust is blocking air from getting into your system, it won’t be long until you notice big problems like:

  • A frozen evaporator coil
  • Ice on refrigerant lines
  • Weak airflow from vents
  • Unusually high energy bills
  1. Clear the outdoor unit

After a harsh winter, you’ll want to make sure your outdoor unit (is clear of leaves, sticks, dirt, etc

dirty poorly maintained condenser

Dirt and the leaves stuck in the condenser can harm the Air Conditioner’s efficiency and raise energy bills.

Why? Your outdoor condensing unit main job is to collect all the heat that was removed from the air inside your home. Then, the unit “dumps” all that heat into the outdoor air.

BUT if the outdoor unit is covered in dirt or stifled by a fence or foliage that’s too close, it will struggle to dump all that heat. Think of this as trying to cool off a hot bowl of soup but there’s an airtight lid over the bowl. Seems pretty ineffective, right?

The same goes for your outdoor unit—if it can’t get rid of all the heat fast enough, it will send some of the heat right back into your home, which means lowered efficiency and higher energy bills.

What to do: Use a hose on a gentle setting to spray down the condenser coils.

  1. Double-check your thermostat settings

Always double check that you’ve moved the thermostat from HEAT to COOL. But you should also always make sure that your thermostat fan is set to AUTO not ON

Setting your thermostat fan to ON means that it will run constantly—even when your A/C isn’t going through a cooling cycle. And this not only eats up energy, it will actually make your home humid.

Your AC is responsible for dehumidifying your home’s air. It does this via the evaporator coil—an A-shaped web of cold refrigerant coils.

The cold refrigerant inside those coils absorbs both the heat and moisture in the air. So, over time, moisture collects on these coils and “should” drip into a pan. But if you set the fan to ON instead of AUTO, the fan will continuously blow over the cold coils, which means moisture will never have a chance to collect and drip into a pan. Instead, the moisture is pushed right back into your home.

Setting the fan to AUTO, on the other hand, means the fan turns off between cooling cycles, allowing time for the moisture to collect and drip into the drain pan.

Setting your fan to AUTO means better humidification and lower energy bills. Related: “On vs. AUTO: One of These Thermostat Settings Costs You Big Time”.

  1. Schedule Air Conditioning tune-up and maintenance. Click to view offer!

We know what you’re asking: “But why would I get maintenance now? I haven’t even ran my AC yet!”

We know—that’s the point. When you schedule Air Conditioning maintenance before the heavy cooling season, you’re making sure that any small problems are resolved before the AC starts running non-stop. Scheduling a maintenance visit by certified HVAC technician now prevents those small problems from turning into larger problems and compromising your comfort when it need it most—in the middle of harsh Philadelphia summer.

Set yourself up for cooling success this summer: get AC maintenance now

Ready to schedule your annual Air Conditioning system maintenance? Call EMCO Tech Philadelphia’s Best HVAC Contractors to help you by phone (215) 366-1001 or via online request

Check out the areas we serve page to see if you’re within our HVAC service radius.

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At EMCO Tech Heating and Cooling, we understand the importance of having a functional heating and cooling system, whether it's in your home or commercial space. Our team of technicians is well-versed in all residential and commercial manufacturers of HVAC equipment, and we can handle any repair, installation, or maintenance job efficiently and effectively. We take pride in delivering superior customer service, while also ensuring that we use state-of-the-art diagnostic equipment to diagnose HVAC problems quickly. Plus, we offer cost-effective repair and replacement solutions to meet your needs and budget. We are the best HVAC service in Montgomery, Bucks, and Philadelphia because we don't just fix the problem - we also educate our customers on how to prevent future HVAC issues. Our team is dedicated to keeping you comfortable year-round, and we guarantee your satisfaction. Get in touch with us today to schedule a service call or to receive a free estimate.