Frequently Asked Questions

Is Your AC Short Cycling?

Your air conditioner should run in steady, consistent cycles to keep your home comfortable. But if you've noticed your AC turning on and off every few minutes instead of running for longer periods, you're likely dealing with a frustrating problem called AC Short Cycling.

Short cycling doesn't just make your home less comfortable—it's also costing you money and potentially damaging your HVAC system. The good news is that many causes of short cycling can be identified and resolved with the right knowledge and approach.

Understanding why your AC is short cycling and how to address it can save you hundreds of dollars in energy costs and prevent premature system failure.

What Is AC Short Cycling?

Short cycling occurs when your air conditioning system turns on and off repeatedly in short intervals, typically every few minutes, instead of completing its normal cooling cycle. A healthy AC system should run for approximately 15-20 minutes per cycle, depending on your home's size and cooling needs.

During normal operation, your AC turns on when the thermostat detects that indoor temperatures have risen above your set point. The system then runs long enough to cool your home to the desired temperature before shutting off. This process repeats as needed throughout the day.

With short cycling, however, the system starts up but shuts down prematurely before completing a full cooling cycle. This creates a pattern where your AC is constantly starting and stopping, never allowing your home to reach optimal comfort levels.

The frequent on-off pattern puts tremendous stress on your system's components, particularly the compressor, which uses the most energy during startup. This leads to increased wear and tear, higher energy bills, and reduced indoor air quality since the system doesn't run long enough to properly filter and dehumidify the air.

Why LA Furnaces Fail in Fall — And How to Avoid a Cold Surprise

Furnace repair in Los Angeles becomes essential as fall arrives. Fall in Los Angeles might not bring the harsh winters of the East Coast, but those chilly nights and unexpectedly cool mornings can catch you off guard.

Here's the reality: most furnace failures happen during the first use after months of summer inactivity. While your heating system sat dormant through LA's warm months, dust accumulated, filters clogged, and components settled into disuse. When you finally fire it up, you're rolling the dice on whether everything will work as expected.

The good news? Most fall furnace failures are entirely preventable with the right preparation or furnace repair in Los Angeles before those chilly nights hit.  Understanding why these breakdowns happen and taking proactive steps can save you from emergency repair calls when the temperature drops.

Why Furnaces Fail After Summer Dormancy

Your furnace experiences significant stress during its first startup after months of inactivity. Several factors contribute to these seasonal failures, and recognizing them helps you understand why preventive maintenance matters.

Dust and Debris Accumulation

During the summer months, dust settles throughout your furnace system. This accumulation affects multiple components:

Heat exchangers become coated with dust, reducing efficiency and potentially causing overheating
Blower motors struggle with debris buildup on fan blades and housing
Electrical connections can become corroded or loose under dust layers
Ductwork collects months of accumulated particles that get blown throughout your home

When your system finally starts up, this dust can cause immediate problems or create long-term damage that leads to future failures.

Clogged Air Filters

Air filters work year-round, even when your furnace isn't actively heating. During summer, they continue collecting dust, pet dander, and other particles from air circulation. A severely clogged filter creates multiple problems:

Restricted airflow forces your blower motor to work harder
Poor air circulation can cause overheating
Reduced efficiency means higher energy bills
System strain can lead to premature component failure

Many homeowners forget about filter changes during the "off-season," making fall startup particularly risky.

Ignition SystemIssues

Modern furnaces use electronic ignition systems that can develop problems during extended periods of non-use:

Hot surface igniters can crack or become contaminated
Gas valve components may stick or fail to operate properly
Flame sensors can become dirty, preventing proper flame detection
Control boards may develop issues after months without operation

These ignition problems often result in complete system failure, leaving you without heat when you need it most.

What Are the Differences Between a 3 Ton, 4 Ton, and 5 Ton HVAC Unit?

The differences between a 3 ton, 4 ton, and 5 ton HVAC unit come down to the system’s cooling capacity, measured in tons, which indicates how much heat the unit can remove from a home in one hour. For HVAC Replacement Hollywood, understanding these sizes is critical because choosing the correct unit ensures comfort, efficiency, and longevity of the system. 

A 3 ton unit typically suits smaller homes or spaces, a 4 ton system works for mid-sized houses, and a 5 ton unit is usually necessary for larger properties with higher cooling demands. At American Cool and Heat, we guide homeowners through these differences so the unit installed fits the specific needs of the home.

What Does “Tonnage” Mean in HVAC?

In HVAC, “tonnage” refers to cooling capacity, not weight. One ton equals the ability to remove 12,000 BTUs of heat per hour. This means:

A 3 ton unit can remove 36,000 BTUs.
A 4 ton unit can remove 48,000 BTUs.
A 5 ton unit can remove 60,000 BTUs.

The correct tonnage ensures balanced comfort without wasted energy. Installing a system that is too small leads to overworking and uneven cooling, while one that is too large may short cycle, increasing wear and energy use. Our team performs detailed load calculations to recommend the right tonnage, so your investment is efficient and effective.

We also explain how each unit interacts with your home’s insulation, layout, and ductwork. For instance, two homes of the same size may require different system sizes depending on insulation quality or ceiling height. Our personalized approach makes certain that tonnage selection is accurate and based on your unique property.

Why Is My AC Unit Leaking?

From clogged drains to refrigerant problems, the short answer is that AC units leak when something in the system is not working properly. This leaking AC issue can lead to costly repairs or water damage if ignored. At American Cool and Heat, we provide professional service to identify why your system is leaking and restore it to proper working condition. Our licensed technicians are here to deliver reliable AC repair Burbank residents (and others throughout the area) can count on.

Common Causes of a Leaking AC Unit our AC Repair Burbank Pros Have Fixed 

Several issues can cause your AC to leak water, and each one requires a professional diagnosis to prevent further complications.

Clogged Condensate Drain Line

One of the most frequent reasons for a leaking AC is a clogged drain line. Over time, dust, dirt, and even mold can build up in the line, blocking the flow of condensation out of your system. When the line is blocked, the water backs up and eventually spills out of the unit.

Our technicians use professional-grade equipment to clear drain lines safely, restoring proper drainage. We also offer maintenance services that keep the lines clean to reduce the risk of future leaks.

Frozen Evaporator Coils

When airflow is restricted or refrigerant levels drop too low, the evaporator coil may freeze. Once it starts to thaw, the excess water can overwhelm the drain pan and leak onto your floors.

We address this issue by identifying why the coil is freezing in the first place. It could be due to dirty filters, blocked ducts, or a refrigerant leak. By fixing the underlying cause, we prevent the cycle of freezing and leaking from recurring.

Damaged or Overflowing Drain Pan

Every AC system has a drain pan to catch condensation, but over the years, these pans can rust, crack, or simply overflow if not emptied properly. A damaged drain pan can no longer hold the water, leading to visible leaks.

Our team inspects and replaces worn or damaged pans with durable parts designed for your specific system. Regular inspections during maintenance visits also allow us to spot early signs of wear before the pan fails completely.

Low Refrigerant Levels

Refrigerant is critical to your system’s cooling process. When levels are low, your AC has to work harder, and the coil is more likely to freeze. As mentioned above, once that ice melts, leaking often follows.

We provide safe refrigerant recharging as part of our repair service. More importantly, we locate and fix the source of the leak, ensuring your system operates efficiently without recurring problems.

Improper Installation

If your air conditioning unit was installed incorrectly, leaks may appear almost immediately. An improperly leveled system or poorly connected drain lines can create conditions where water doesn’t drain as it should.

Our installation experts ensure every unit is set up to manufacturer specifications. If you suspect poor installation is behind your leaking AC, we can evaluate the system and make the necessary corrections.

Why Are My Utility Bills So High?

Unfortunately, it’s probably your AC unit. One of the most common reasons for higher energy costs is that your air conditioner or heating unit is not working as efficiently as it should. That’s where our AC repair Burbank team can step in. 

We diagnose and fix the problems that lead to wasted energy, restore efficiency to your system, and help you enjoy a cooler home without the unnecessary expense of inflated utility bills.

How a Malfunctioning AC Can Drive Up Energy Costs

When your air conditioning unit isn’t working properly, it has to run longer and harder to achieve the same level of comfort. This extended operation means more electricity is used, and your bills quickly reflect it. 

Common issues that lead to this include clogged filters, dirty coils, or electrical faults that prevent the unit from functioning at its best. Even a small problem can compound over time, creating a noticeable difference in how much you pay each month.

We specialize in identifying these issues quickly and providing solutions that restore your system to optimal performance. By addressing small problems before they escalate, we not only bring your bills back down but also extend the life of your system.

Dirty or Clogged Air Filters

A clogged air filter forces your AC unit to work harder to push air through the system. This extra effort increases energy consumption and can make your home less comfortable, with uneven cooling and poor air quality.

Our technicians can replace or clean your filters as part of routine maintenance. We also show you how to handle filter changes between visits so your system continues running efficiently. A simple filter replacement may seem minor, but it can make a big difference in how much you spend on electricity each month.

Leaks in the Ductwork

Leaky ducts allow cool air to escape before it reaches the rooms in your home. This means your AC has to run longer to achieve your desired temperature, which directly contributes to higher bills.

With our professional AC repair services, we can identify duct leaks and provide sealing solutions that prevent this waste. By ensuring every bit of cooled air makes it into your living space, you reduce energy usage and keep your home consistently comfortable.

Why Is My AC Not Cooling?

The answer can range from simple fixes to more complex system issues. Across Southern California, common causes include dirty air filters, low refrigerant levels, thermostat problems, or blocked airflow. Our technicians handle all of these issues and more. We provide thorough inspections and professional AC repair in Burbank and beyond services to restore cool, consistent comfort as quickly as possible while preventing problems from returning.

Common Causes of AC Cooling Problems

Many cooling issues stem from everyday wear and tear. Even when your AC is relatively new, a small problem can impact overall performance. Some of the most frequent causes we encounter include:

Dirty or clogged air filters restricting airflow
Refrigerant levels that are too low
Faulty thermostats giving incorrect readings
Blocked or leaky ducts reducing circulation
Dirty condenser or evaporator coils

Each of these can prevent your AC from cooling properly, but the good news is that our professionals can address them quickly with the right tools and expertise.

The Role of Air Filters

Air filters are one of the most common sources of cooling problems. Over time, dust and debris collect in the filter, which restricts airflow and makes your AC work harder. When this happens, even if your system is running, the air coming out of your vents may not feel as cool as it should.

Our team checks, cleans, and replaces filters during service visits, helping your AC cool efficiently while also improving indoor air quality.

Refrigerant Issues

Refrigerant is the substance that absorbs heat from your indoor air and releases it outside. When refrigerant levels are too low—often due to leaks—your system can’t cool effectively. You may notice that the air feels warm or that your AC is running constantly without lowering the temperature.

Handling refrigerant requires training and safety measures, which is why it’s always best left to our licensed technicians. We not only restore refrigerant to the correct level but also fix leaks so the issue doesn’t return.

Thermostat Malfunctions

Sometimes the issue isn’t with the AC itself but with the thermostat. A malfunctioning thermostat may read the wrong temperature or fail to communicate properly with the system. As a result, your AC may shut off too soon or fail to turn on at all.

We test thermostat accuracy and wiring during service calls. If needed, we repair or replace the thermostat to restore reliable cooling.

What Factors Determine the Right AC Size?

The right AC size is determined by a combination of factors such as the square footage of your property, ceiling height, insulation quality, sun exposure, and even the number of people regularly occupying the space. An oversized system may cycle on and off too often, wasting energy, while an undersized system will struggle to keep you comfortable. By turning to our AC repair Burbank team, you can be confident that your unit will be sized correctly for your home, business, or any other property.

At American Cool and Heat, our professionals carefully evaluate these details to ensure that your unit is neither too large nor too small. 

Square Footage and Layout

The most obvious factor in determining AC size is the size of your property. Larger homes or businesses naturally require more cooling power. However, it’s not just about total square footage. The way the space is laid out also plays a major role.

For example, a wide open floor plan may require less cooling capacity than a building with many smaller, enclosed rooms. Similarly, multi-story properties can present unique challenges, as heat tends to rise, creating uneven cooling demands. Our technicians take these details into account when calculating the proper size of your unit.

Insulation and Energy Efficiency

Even if two homes are the same size, the insulation and energy efficiency of the building can make a big difference in what size AC is needed. Properties with good insulation, sealed windows, and modern construction materials tend to hold cool air better, which means they may require a smaller system than an older building of the same size.

Our team assesses insulation and energy efficiency as part of our evaluation. By doing so, we can help you avoid paying for more cooling capacity than you actually need.

Ceiling Height and Volume of Air

Many people overlook ceiling height, but it is just as important as square footage. A room with vaulted ceilings has more air to cool, which means it requires more power than a room of the same size with standard-height ceilings.

When we evaluate your property, we don’t just measure the floors—we also take into account the total volume of air that needs to be cooled. This ensures your system is equipped to handle the space effectively.

How Often Should I Have My AC Serviced?

The short answer is that you should have your AC serviced at least once a year. At American Cool and Heat, we recommend annual maintenance because Southern California weather puts extra demand on cooling systems. With hot summers and warm days for much of the year, your AC works harder here than it might in other parts of the country.  Having your system serviced once a year allows our technicians to clean, adjust, and test your unit so it runs efficiently. With our professional AC repair Burbank team, we make sure your system is in great condition so you can go longer between service calls while still staying cool and comfortable.

Why Annual Service Matters in Southern California

Unlike regions that experience long, cold winters, SoCal homeowners rely heavily on air conditioning throughout the year. Warm spring days often turn into scorching summer afternoons, meaning your system is running more often and under greater stress.

An annual service visit gives us the opportunity to:

Inspect the unit for worn or failing parts 
Clean coils, filters, and other components 
Confirm refrigerant levels are correct 
Check airflow and thermostat function 
Make adjustments to maximize efficiency 

By taking care of these details each year, we help prevent the small issues from becoming expensive repairs.

What Happens If You Wait Too Long Between Services

Some customers ask us if they can skip a year of service, especially if their AC seems to be running fine. While it may work in the short term, waiting too long to have your AC serviced can cause a variety of problems. For example:

Dirt and debris can clog coils, forcing the system to work harder and use more energy. 
Refrigerant levels may become imbalanced, reducing cooling power. 
Small electrical issues can go unnoticed until they cause a system breakdown. 
Worn parts that could be replaced easily during a tune-up may lead to major failures later. 

These problems not only shorten the lifespan of your unit but also raise energy bills and reduce comfort in your home or office.

How Our Service Helps You Go Longer Between Visits

At American Cool and Heat, we don’t just perform routine maintenance; we take steps to maximize the time between service calls. Our technicians go beyond the basics, carefully cleaning, testing, and calibrating your system so that it performs reliably throughout the year.

By ensuring the system is in peak condition, we reduce the likelihood that you’ll need another service before the next scheduled annual check. Many of our customers appreciate that we focus on quality during each visit, which pays off in fewer unexpected breakdowns.

How Long Does an AC Installation Typically Take?

The short answer is that a standard installation usually takes between four to eight hours. The exact timeframe depends on factors such as the type of system being installed, whether we are replacing an old unit, and the layout of your home or business. Our professional AC repair in Burbank (and beyond) technicians are committed to completing the job as efficiently as possible without cutting corners. 

We aim to get your air conditioning up and running quickly, but we never rush at the expense of safety, precision, or long-term performance.

Factors That Affect Installation Time

Every installation is unique, and the amount of time it takes can vary. Our team always accounts for the specific details of your property and the equipment selected to make sure everything is handled correctly. Some of the main factors that can affect installation time include:

The type of AC system being installed (central, ductless, packaged, etc.)
The complexity of ductwork modifications or additions

Whether an old unit needs to be removed first
The size of the property and accessibility of the installation area
The number of technicians assigned to the project

Even when the installation requires additional time, we schedule and prepare so that the process stays as streamlined as possible.

What Does the Average HVAC Replacement Cost?

The average HVAC replacement cost in Glendale and the greater Los Angeles area can vary widely, but most homeowners can expect to pay between $5,000 and $12,000 depending on the size of the system, the efficiency rating, and the complexity of the installation. When searching specifically for HVAC Replacement Glendale, it is important to keep in mind that the final cost will depend on several factors such as the condition of existing ductwork, the type of unit being installed, and whether additional upgrades are necessary to bring your system up to local building codes. 

Here at American Cool and Heat, we work directly with homeowners to provide clear, transparent pricing so you know what to expect before we begin any project.

Factors That Influence HVAC Replacement Cost

One of the biggest elements that determines HVAC replacement cost is the size of the unit required to cool and heat your home properly. Larger homes require larger capacity systems, which naturally cost more. 

Smaller residences, by contrast, may only need a single-stage system to achieve comfort. Our technicians carefully evaluate your home’s square footage, insulation, and layout before recommending the appropriate unit size. This prevents you from overpaying for a system that’s too powerful or investing in one that underperforms.

Efficiency rating also impacts the overall price. Higher efficiency HVAC systems, while costing more upfront, provide long-term savings on energy bills. According to the U.S. Department of Energy. upgrading to an energy-efficient air conditioner can significantly reduce household energy consumption. We help homeowners in Glendale find the right balance between upfront investment and long-term savings, ensuring you get a system that fits both your budget and your energy goals.

How Installation Complexity Affects Costs

Not every HVAC replacement is straightforward. In some homes, the ductwork may be outdated, leaking, or improperly designed. Replacing or repairing ducts adds to the cost but is often essential for maximizing efficiency and comfort. 

We provide professional ductwork services to ensure your new system delivers air evenly throughout the home. Addressing duct issues at the time of replacement not only improves performance but also prevents costly repairs down the road.

Accessibility is another factor that can influence cost. If the indoor unit or ductwork is located in a difficult-to-reach space, additional labor may be required. Our team has extensive experience working in So-Cal-area homes, from older properties with tight attics to modern builds with complex layouts. We tailor our installation approach to minimize disruption while ensuring all safety and performance standards are met.

 Is Your Burbank Home Ready for Cold Nights? 5 Heating Repairs to Handle Now

Winter in Burbank brings unique challenges that many Southern California residents don't expect. While coastal areas enjoy milder temperatures, Burbank's valley location creates surprisingly cold nights that can catch homeowners off guard. When your heating system hasn't run for months, those first chilly evenings often reveal problems that developed during the summer break — making heating repair in Burbank more urgent than many realize.

Smart homeowners don't wait for their furnace to fail completely. By addressing common heating issues before temperatures drop, you can avoid emergency repairs and ensure your family stays comfortable throughout the winter season. Let's explore the most frequent heating problems Burbank residents face and why getting ahead of these issues matters more than you might think.

Why Heating Systems Struggle After Summer Dormancy

Your heating system experiences significant stress when it sits idle for months. During Burbank's long, hot summers, furnaces and heat pumps remain unused while dust accumulates, seals dry out, and components settle into inactivity. This dormancy period creates the perfect conditions for problems to develop unnoticed.

When you fire up your system for the first time in months, several issues commonly emerge. Electrical connections may have loosened, filters have collected debris, and moving parts might struggle to operate smoothly. The sudden demand for heat after extended inactivity puts additional strain on already compromised components, often requiring heating repair in Burbank before the system can function reliably again.

Temperature fluctuations during summer also affect your heating system. The extreme heat in Burbank attics and crawl spaces can cause seals to crack and electrical components to degrade. Even though your furnace isn't running, these environmental factors continue working against system reliability.

Burbank's Valley Climate Creates Unique Heating Demands

Burbank's location in the San Fernando Valley significantly impacts winter heating needs. Unlike coastal Los Angeles areas that benefit from ocean temperature moderation, the valley experiences more dramatic temperature swings and notably colder nights.

Valley locations trap cold air, creating microclimates that can be 10-15 degrees colder than nearby coastal areas. This phenomenon, called a temperature inversion, means your heating system works harder and longer than systems in other parts of Los Angeles County.

The dry valley air also affects comfort levels differently. Lower humidity makes the same temperature feel colder, causing residents to set thermostats higher and demand more from their heating systems. This increased workload accelerates wear and makes early-season maintenance even more critical.