When temperatures soar in Wilmington, MA, your air conditioner becomes your most valuable appliance. But what happens when it seems like your system is running nonstop and still can’t keep the house cool? Is it normal for AC to struggle in extreme heat? And how do you know if it’s working harder than it should?

Here’s what homeowners need to know about spotting an overworked AC – and what to do about it.

Is It Normal for AC to Run All Day in Extreme Heat?

In short, yes.

When outdoor temperatures climb into the high 80s, 90s, or even 100s, your air conditioner may run for hours at a time. Most ACs are designed to lower indoor temperatures by about 20 degrees from the outside, meaning if it’s 100 out, the best you might get is 78-80 indoors.

So, if your home isn’t reaching that cool 72 degrees like you’re used to in milder weather, it doesn’t necessarily mean your AC is broken. But if the system is running all day and your home still feels warm and sticky, your AC might be overworked, and that can shorten its lifespan and spike your energy bills.

How Cool Should My House Be if It’s 100 Outside?

When it’s 100 or hotter, it’s completely normal for your home’s indoor temperature to hover in the high 70s or low 80s. That 20-degree cooling differential is standard for most systems.

If your thermostat is set to 72 and your home stays stuck at 80+, it’s likely your system is either underperforming or fighting against outside factors like poor insulation, dirty filters, or leaky ducts.

Signs Your AC Is Overworking

It’s easy to miss the early warning signs of an AC working overtime. Watch for these red flags:

• It runs constantly but doesn’t cool well. Even after hours of operation, indoor temps stay high.

• Weak airflow or uneven temperatures. Some rooms might feel cooler than others, or airflow feels sluggish from the vents.

• Unusual noises. Grinding, buzzing, or rattling often mean your system is under more stress than usual.

• Burning smells or hot spots around the unit. If your system feels hot to the touch or emits a faint burning smell, it could be a sign of electrical stress or overheating.

• Spiking energy bills. Higher-than-normal energy usage, especially if your home isn’t getting cooler, is a strong indicator that your system is overcompensating.

How to Fix an Overworked AC

If you suspect your air conditioner is overworking, here’s how you can help it out:

1. Change the air filter. Clogged filters restrict airflow and make your AC work harder than it needs. During extreme heat, check your filter monthly and replace it as needed.

2. Close blinds and curtains. Sunlight streaming through your windows heats up your home fast. Blocking out the sun during peak hours can significantly reduce indoor temps.

3. Seal up air leaks. Make sure your doors and windows are properly sealed. Even small drafts let precious cool air escape and make your system work harder.

4. Don’t lower the thermostat too far. Setting your thermostat too low won’t cool your house faster; it just forces your system to run longer. Aim for 75-78 when it’s extremely hot outside.

5. Schedule professional maintenance. A tune-up can help catch underlying issues before they turn into bigger problems. Dirty coils, refrigerant problems, or worn-out components often go unnoticed until your AC is pushed to its limits.

Don’t Let the Heat Win

At Super Service Today, we know Wilmington summers can push your AC to its limits.

If your system is struggling to keep up, or you’re not sure if it’s overworked or just outdated, we’re here to help. Our technicians can evaluate your system, make needed repairs, and offer solutions to keep your home cool without overworking your unit.

Stay ahead of the heat. Schedule your AC service with Super Service Today and give your system the care it needs to run strong all summer long.

Every homeowner knows how essential air conditioning is during the summer. But what you might not know is that skipping regular AC maintenance could cost you a lot more than you think. Beyond just keeping your home cool, maintenance ensures your system runs as it should, prevents costly repairs, and extends its lifespan.

This blog will break down why AC maintenance is crucial, what it includes, and how it saves you money over time.

What Does AC Maintenance Actually Include?

AC maintenance is not just a simple clean-up; it’s a thorough, professional checkup to ensure your system works as it should. When a technician visits to service your AC, here’s what you can generally expect:

• Checking refrigerant levels to ensure your system cools efficiently.

• Cleaning the coils and filter, which reduces strain on your system.

• Inspecting parts for wear and tear to catch small problems before they grow.

• Testing electrical connections and controls for safety and performance.

Why a Dirty System Costs You More

Ever notice your electric bill creeping up during the summer? Dirt and debris inside your air conditioning system make it work harder to do the same job, which directly increases energy consumption. A dirty air filter alone can block airflow, causing poor performance and higher utility bills.

What’s worse? The extra strain on components like your blower motor or compressor. When these overworked parts fail, the repair costs can hit hard. By keeping your system clean and well-maintained, you avoid all these unnecessary expenses.

AC Efficiency Drops Without Maintenance

An AC system doesn’t stay efficient forever without proper care. Over time, buildup in the system and unchecked problems can reduce efficiency by up to 15%. That means you’ll be paying more each month for the same cooling output.

Regular maintenance keeps everything running smoothly, ensuring that the energy used translates directly into comfortable, cool air in your home. It’s an easy way to cut down on wasted energy (and dollars) during the summer.

Preventing Big AC Repairs Before They Start

Major AC repairs rarely happen overnight. Most breakdowns begin as minor issues like low refrigerant levels, frayed wires, or restricted airflow. These problems can snowball over time, leading to emergency repairs or even total system failure.

Regular AC maintenance spots and addresses these small issues before they escalate. By investing in a routine checkup, you greatly reduce the likelihood of needing costly repairs or getting caught off guard by a complete system breakdown.

Extending the Life of Your System

Replacing an air conditioning system isn’t cheap. On average, a new unit can set you back thousands of dollars. However, with consistent maintenance, you can extend the lifespan of your AC by several years.

Preventative care reduces the overall wear and tear on your system, keeping it running reliably for longer. By scheduling regular tune-ups, you increase the chances of getting the most value out of your investment.

Keeping Your Warranty Valid

Many homeowners don’t realize this, but skipping regular maintenance could invalidate your AC’s warranty. Most manufacturers include maintenance as a condition in the warranty agreement. If your system breaks down and there’s no record of upkeep, you could be stuck footing the bill for what should have been a covered repair.

Keeping up with routine maintenance ensures your warranty stays intact, protecting you financially and giving you peace of mind.

You Don’t Have to Remember, We Can Do That for You

Life gets busy, and it’s easy to forget to schedule AC maintenance. That’s why trusted providers like Super Service Today offer scheduled maintenance plans to keep you on track. These plans remove the hassle by reminding you when it’s time for service and handling all the details so that your system stays in top shape without adding to your to-do list.

If it’s been a while since your last AC checkup, don’t wait for the heat of the summer. Schedule maintenance today with Super Service Today and ensure your AC is ready to keep you cool.

Does your air conditioner hit you with a musty, damp smell the moment it starts up? That stale odor isn’t just unpleasant but usually a sign of moisture problems or mold growth inside your HVAC system.

Below, Super Service Today explains what causes musty AC smells, the health risks involved, and what you can do to get your system – and your air – back to fresh.

Common Causes of Musty AC Odors

A musty smell is usually tied to moisture buildup inside your air conditioning system. This creates a perfect environment for mold, mildew, and bacteria to thrive.

The most common causes include:

• Dirty air filters: Dust and debris reduce airflow and trap moisture, leading to mold growth.

• Clogged condensate drain lines: When water can’t drain properly, it sits inside your system and starts to smell.

• Standing water in the drain pan: A full or stagnant pan becomes a breeding ground for mold and bacteria.

• Mold on evaporator coils: These coils stay cool and damp—ideal for mold if they’re not cleaned regularly.

• Moisture in ductwork: High humidity or a compromised duct system can trap moisture and cause mold to spread.

• Malfunctioning condensate pump: If the pump isn’t working, water builds up instead of draining out.

Health Risks of Musty AC Smells

If your air conditioner smells musty, it’s a potential health hazard. Mold spores and bacterial particles can circulate through your air and trigger:

• Persistent cough or throat irritation

• Worsening asthma or allergy symptoms

• Sinus pressure, headaches, or fatigue

• Respiratory issues in children, seniors, or immunocompromised individuals

If your symptoms worsen while the AC is on, don’t ignore the smell. It’s a sign your indoor air quality is compromised.

Will the Smell Go Away On Its Own?

Unfortunately, no. If your AC smells like mildew, the odor won’t disappear without intervention. Moisture issues and mold tend to get worse over time, not better. Left unchecked, they can spread into your ductwork, damage internal parts, and lead to more costly HVAC repairs down the road.

How to Fix a Musty-Smelling AC

Here are some DIY steps you can take while you wait for a professional service appointment:

• Replace the air filter – do this every 1 to 3 months

• Pour white vinegar (1 cup) down the condensate drain line to prevent blockages

• Clean visible mold or mildew around vents using a mild detergent

• Check the drain pan and empty it if it’s full

• Use a shop vac to try clearing clogged drain lines

While these can help with surface-level odors, persistent or worsening smells mean it’s time to call in the pros.

How to Prevent Musty AC Smells

Once your AC is clean, stay ahead of future odors with regular maintenance:

• Schedule seasonal HVAC tune-ups (spring and fall)

• Change your filters regularly based on system use and manufacturer guidance

• Install a UV light system to stop mold growth on coils

• Use a dehumidifier in humid climates to reduce moisture in the air

• Keep vents clear and ductwork sealed to avoid air stagnation and condensation

A well-maintained system doesn’t just smell better – it runs better, saves you money, and keeps your air cleaner.

Call Super Service Today for Fresh, Healthy Air

At Super Service Today, we understand how important clean, fresh air is for home comfort and health. Our expert technicians can diagnose the exact cause of your musty AC smell and provide effective solutions. Call us today at (781) 654-8373 to schedule a professional inspection and get your air conditioner back to fresh.

Your air conditioner is running, but your home still feels warm – and you’re left wondering, “Why is my AC running but not cooling the house?”

You’re not alone; this is one of the most common AC complaints homeowners face, especially during high-use summer months in Wilmington, MA. The good news? Most causes are fixable with either a quick maintenance step or the help of a professional. 

At Super Service Today, we’re breaking down the most common reasons for this issue and what to do next to get cool air flowing again. 

Reasons Why Your AC Is Running but Not Cooling Your House

Clogged Air Filters Are Blocking Airflow

If your AC is on but not cooling, the first thing to check is your air filter. A dirty or clogged filter restricts airflow, making it harder for cool air to reach your living spaces. In fact, restricted airflow is one of the most common reasons for uneven cooling – and it puts added stress on your system.

The Fix: Replace your filter if it looks dusty or hasn’t been changed in the last 1–3 months. Going forward, check it monthly during the cooling season.

You May Have a Refrigerant Leak

Refrigerant is what actually cools the air inside your home. If your system is low on refrigerant or there’s a leak, your AC might run continuously but never blow cold air. Other warning signs include ice on refrigerant lines, hissing sounds, or warm air from vents.

The Fix: Refrigerant leaks must be handled by a licensed HVAC technician. Call us right away. Not only is refrigerant dangerous to handle, but running your system with low levels can cause major damage to the compressor.

Dirty Condenser Coils Are Overheating Your System 

The outdoor unit (condenser) releases heat from your home. But if the condenser coils are coated with dirt, dust, or debris, they can’t release that heat efficiently. Your system keeps running, but your home never gets cooler.

The Fix: Check your outdoor unit and gently rinse off visible dirt with a hose (never use high pressure). Clear away grass, leaves, and mulch from the base. For deep coil cleaning, give us a call.

Frozen Evaporator Coils Are Preventing Cooling

If your AC is blowing warm air and your indoor unit stops producing airflow entirely, you might have frozen evaporator coils. This usually happens when airflow is restricted, often due to a dirty filter or blocked vents.

The Fix: Turn off your system and let it thaw completely (this can take several hours). Once thawed, replace the filter and make sure vents aren’t closed or obstructed. If freezing keeps happening, your system likely needs a professional diagnosis.

Electrical Issues Are Disrupting Cooling

Sometimes, your AC sounds like it’s running but it’s only the fan. If the compressor isn’t kicking on, the system can’t actually cool the air. This can be due to a bad capacitor, thermostat issue, or tripped breaker.

The Fix: Check your electrical panel for tripped breakers. Reset your thermostat and make sure it’s set to “cool.” If you hear buzzing or clicking from the outdoor unit, call a professional immediately, as these are signs of electrical failure.

Poor Maintenance Is Slowing Everything Down 

Many of the above issues—clogged filters, dirty coils, weak airflow—are the result of skipped maintenance. Just like your car, your AC needs regular servicing to run efficiently. Without it, minor problems turn into expensive ones.

The Fix: If it’s been a year or more since your last tune-up, your system is overdue. Regular AC maintenance includes cleaning coils, checking refrigerant, testing electrical components, and ensuring proper airflow.

Get Back to Comfort With Super Service Today

Still asking, “Why is my AC running but not cooling my house?” One of the issues above is almost always the reason. And the sooner it’s diagnosed, the easier (and cheaper) it is to fix.

At Super Service Today, we provide expert AC repairs and seasonal tune-ups throughout Wilmington and the surrounding areas. Whether your system needs a quick filter change or a refrigerant recharge, we’re here to get your home cool and comfortable again – fast.Call (781) 654-8373 to schedule your AC service with Super Service Today.

When summer hits in Wilmington, MA, your air conditioner is essential. But without regular AC maintenance, even the best system can start to slip. 

Maybe you’ve noticed higher energy bills, uneven cooling, or strange noises from your unit. That’s where a professional tune-up can make all the difference.

So, how do you know if your AC needs maintenance? And what does a tune-up actually include? At Super Service Today, we’re here to break it all down – plus tell you how to save with our $89 AC tune-up special!

What Is an AC Tune-Up and What’s Included?

An AC tune-up is a routine maintenance service designed to keep your system running efficiently and catch small issues before they become major repairs. If your air conditioner hasn’t been serviced in a while, now’s the time.

A professional AC tune-up from Super Service Today includes:

• Inspecting and cleaning condenser and evaporator coils

• Checking refrigerant levels and testing for leaks

• Tightening electrical connections and inspecting wiring

• Testing thermostat calibration and system cycling

• Flushing the condensate drain line to prevent clogs

• Replacing or cleaning the air filter

• Checking airflow and duct conditions

These steps not only improve performance and efficiency, but also help extend the life of your AC system.

How Much Does an AC Tune-Up Cost?

The cost of an AC tune-up can vary depending on your system and provider, but most professional HVAC companies charge between $100 and $200 for a full-service maintenance visit.

At Super Service Today, we’re currently offering our complete AC tune-up for just $89 – a limited-time deal that covers everything you need to keep your home cool and efficient through summer. No gimmicks, no hidden fees… just honest, expert care.

How Often Should You Get an AC Tune-Up?

We recommend scheduling a tune-up once a year, ideally in early spring—before your system kicks into high gear. That way, you’re prepared for the first heat wave and less likely to face surprise breakdowns when you need cool air the most.

If you missed spring, it’s still worth scheduling your maintenance now. Regular tune-ups help you:

• Lower your energy bills

• Improve indoor comfort

• Catch problems early

• Avoid costly emergency repairs

• Keep your manufacturer’s warranty valid

How Do I Know If My AC Needs Maintenance?

Even if your system is still running, it may be struggling. Here are some common signs your AC needs a tune-up:

• Uneven temperatures or weak airflow

• Strange smells or noises during operation

• Higher-than-usual energy bills

• The system runs constantly but doesn’t cool well

• You can’t remember the last time it was serviced

Routine maintenance helps prevent these problems and keeps your system running reliably all summer.

Don’t Miss Our $89 AC Tune-Up Special

Your AC works hard to keep your home comfortable—return the favor with a quick, professional tune-up. At Super Service Today, we make it easy with our $89 AC tune-up, available now to homeowners in Wilmington, MA and surrounding areas.

Call (781) 654-8373 to schedule your appointment today, or book online at your convenience.  We’ll make sure your AC is clean, efficient, and ready to handle the summer heat, so you don’t have to sweat a thing!