Blog

Furnace Troubleshooting: Reasons for Cold Air and How to Fix Them

When the temperature drops, the last thing you want is for your furnace to start blowing cold air. While a properly functioning furnace keeps your home warm and cozy, various issues can cause it to produce cold air instead. Let’s dive into the common reasons for this problem and the steps you can take to fix it, ensuring your home stays warm and comfortable throughout the winter.

1. Thermostat Settings: A Simple Yet Common Cause

Sometimes, your furnace blowing cold air can be traced back to incorrect thermostat settings. Here’s what to check:

How to Identify and Prevent Short-Cycling

Dealing with an air conditioner that constantly turns on and off, especially during a hot Texas summer, can be incredibly frustrating. Not only does it make your home less comfortable, but it can also drive up your energy bills and wear out your AC unit faster than it should.

What is Short-Cycling?

Short-cycling happens when your AC turns on and off in quick bursts without completing a full cooling cycle. Ideally, your AC should run long enough to cool your home and then take a break until the temperature rises again. When short-cycling occurs, it can't maintain a steady temperature, which leads to frequent starts and stops.

Why Does Short-Cycling Happen?

1. Dirty Air Filters

If your air filters are clogged with dust and debris, your AC has to work harder to cool your home. This extra strain can cause the system to overheat and shut down prematurely.

Fix: Check and replace your air filters regularly, especially during the summer when your AC is working its hardest. Depending on the type of filter and the conditions in your home, it may be necessary to replace filters every 1-3 months.

Air conditioners are essential to keeping homes cool and comfortable during hot weather. However, they are not immune to wear and tear and will need to be repaired and eventually replaced over their lifetime. If you are experiencing issues with your AC, use the signs below to determine if your air conditioner needs repair or replacement.

5 Signs Your Air Conditioner Needs Repair

In most cases, you can repair your air conditioning unit rather than replace it if you are experiencing any of the following problems.

1.Warm Air Coming From Your AC

Warm air coming from your AC vents is not immediately a cause for replacement. There are many different reasons for this and potential solutions. You may have a faulty thermostat that, although set to the correct temperature, is not transmitting that temperature to your AC. There could also be a compressor issue or restricted airflow causing the warm air.

2.AC Unit Leaking Refrigerant

If your air conditioner is leaking refrigerant, it is typically an easy issue to fix. You may notice pooling water or ice built up on the refrigerant lines. A refrigerant leak can also be responsible if your AC is short cycling, or constantly turning on and off. Contact an HVAC technician such as The AC Guy to fix the refrigerant leak and recharge your AC system to get it working correctly again.

3.Air Conditioner Constantly Running

You may not need to completely replace an AC that runs constantly. There are quite a few reasons for this, and most are repairable. Your air conditioner may always be on if you have a dirty air filter, a malfunctioning thermostat, dirty coils, ductwork that restricts airflow, or low refrigerant levels. Troubleshoot these potential reasons your AC constantly runs before buying a new unit.

In the Texas heat of summer, a properly functioning air conditioning unit is a necessity. Ensuring your AC lasts longer isn't just about comfort, but it's also about smart maintenance and proactive care. By taking a few simple steps, you can extend the lifespan of your AC system while keeping your home both cool and comfortable.

10 Tips to Make Your AC Last Longer and Beat the Summer Heat

Here are ten essential tips and tricks to make sure your AC continues to run efficiently and stays resilient, allowing you to stay refreshed throughout the hot summer months.

1. Start with a Professional AC Installation

Beginning with a professional AC installation, such as the services provided by The AC Guy, is essential for maximizing the lifespan of your system. Professional installation ensures that all components work seamlessly together, minimizing the risk of any future malfunctions and repairs. By entrusting your AC installation to experts, you can have confidence in the longevity and efficiency of your cooling system.

2. Clean or Replace Air Filters

Regularly cleaning and replacing the air filters is crucial for extending the life of your AC unit. Dirty AC filters restrict airflow, leading to increased strain on the system as it works harder to maintain comfortable temperatures. By cleaning or replacing filters every 1-3 months, you can ensure proper airflow, reduce strain on the AC components, and ultimately prolong the lifespan of your unit.

3. Keep the Outdoor Unit Clean

By keeping the outdoor unit of your AC clean, you can extend its lifespan. Regular removal of debris near the unit, such as leaves, grass, and dirt can prevent airflow blockage, which allows the system to operate efficiently without strain.

In Texas, the summer heat can be intense, with average high temperatures reaching around 90 degrees in many parts of the state, including The Woodlands. As the mercury rises, having a reliable air conditioning system becomes a necessity. It is crucial to detect signs of potential malfunctions before your cooling unit fails, so be sure to pay close attention to any abnormalities among these indicators, as they may signal issues with the evaporator coil.

Understanding Evaporator Coils

Among the essential components of HVAC systems, the evaporator coil plays an important role in regulating temperatures. These coils are in place within the air conditioning unit to absorb any heat from the air leading to lower temperatures within the air-conditioned space. Over time, factors such as wear and tear, dirt buildup, or even refrigerant leaks can compromise its efficiency, leading to decreased cooling performance and potential AC system breakdowns.

The AC Guy takes a detailed approach to evaporator coil replacements to ensure your entire HVAC system is reaching its full potential. By addressing this component with precision and expertise, we ensure the continued comfort as well as efficiency of your HVAC system. With The AC Guy, we do not only guarantee optimal performance but also extend the lifespan of your cooling systems. This ultimately saves you from costly repairs and replacements that may occur overtime.

7 Signs That Your Evaporator Coil Needs Replacing

Recognizing signs that your evaporator coil may require replacing is important for maintaining both the efficiency and longevity of your HVAC system. We specialize in addressing these indicators with expertise. Here are signs that indicate your evaporator coil may need replacing:

1. Reduced Cooling: You may notice your air conditioning system is struggling to stay at the set temperature. If you find that some areas of your home are not staying cooled, this could be a sign of evaporator coil issues.

As the hot Texas summer draws near, homeowners across the Lone Star State prepare for sweltering temperatures and high humidity levels. With the excitement of pool parties and BBQs, it's easy to overlook one essential aspect of summer readiness: your home's air conditioning system.

It’s important to understand how to be proactive through AC maintenance, particularly in making sure your units are primed and ready for the Texas heat ahead. Scheduling a pre-summer AC tune-up is not just a recommendation but a necessity for Texans looking to stay cool and comfortable all summer long.

6 Reasons a Pre-Summer AC Tune-Up is a Must for Texas Homeowners

One of the best steps you can take is to get your AC inspected by a professional HVAC technician, such as The AC Guy, before the temperatures soar. A professional tune-up ensures peace of mind, saves you money over the years, enhances your AC cooling performance, improves indoor air quality, and extends the lifespan of your equipment, allowing for your family's safety.

Here are six reasons why getting your AC maintenance done before summer is a must for Texas homeowners:

1. Create a Quiet Backyard Space

Summer in The Woodlands, Texas means backyard barbecues, pool parties, and serene evenings spent on the patio. However, the joy of outdoor gatherings can quickly be dampened by the noise of a clunky, noisy AC unit.

Why Spring AC Tune-Ups Matter

As the hot Texas summer approaches, your AC system becomes a necessity for comfort and relief. With the temperatures rising, your AC unit will begin to feel the strain and will have to work overtime to keep up with the heat. You may not be thinking much about your HVAC system when it’s running smoothly and the temperatures are cool, but it is key to catch any issues when they are small to save you money, improve air quality, and increase your home's energy efficiency.

If your AC unit is not properly maintained, the likelihood of it breaking down becomes much more significant. Without proper upkeep, your unit may not be running as efficiently as it could be. By proactively maintaining your AC unit in the spring, you can ensure it will be running efficiently by summer to beat the Texas heat. With proper care, you can keep your unit running smoothly as temperatures rise.

The Cost-Saving Benefits of AC Tune-Ups

Regular AC tune-ups allow for cost-saving benefits due to keeping your AC unit running efficiently. A well-maintained AC unit can improve energy efficiency, resulting in a reduction in your energy bill. According to the U.S. Department of Energy, a maintained AC system improves energy efficiency by 5% - 15%. An AC unit that is clean and functioning well will work less to achieve the same results, allowing it to last significantly longer, and saving you money in the long run.

The lifespan of your AC unit is greatly dependent on how well it is maintained. By regularly maintaining your AC unit, you can potentially double its lifespan. With regular AC maintenance, you will save money long-term and keep your AC system running more efficiently. When you overlook the importance of regular AC tune-ups, you risk safety hazards, poor air quality within your home, and increased repair costs.

By utilizing the AC Guy for a tune-up, you can lengthen the life of your AC unit and increase your system's efficiency. With regular preventative maintenance on your AC system, you can expect an AC system to last about 15-20 years.

Ensuring Your Air Conditioner Lasts

Spending time and money on an air conditioning (AC) unit is a big investment, so it is essential to recognize the preventative care required to extend your AC’s lifespan. When maintaining your AC unit, you save financially and through the overall comfort of your environment. It may be a sign that it is time to repair your AC unit if you are experiencing leaks, electrical issues, clogged filters, or general system neglect. Preventative care and regular maintenance are crucial in preserving an AC’s lifespan, so let’s look at our top tips for extending the life of your AC.

Do-It-Yourself Maintenance Tips for Your AC System

It doesn’t always require a professional to keep up with your AC maintenance. Here are a few simple things you can do yourself to upkeep your AC system and extend its lifespan.

Investing in Comfort: What to Expect When Buying a New HVAC System in 2024

You've just sweated through another hot, humid summer and your old AC unit is on its last legs. As you're researching replacements, you're shocked by the prices you see. New HVAC systems seem way more expensive than just a few years ago! Before you stress over paying a small fortune for a new system, read this guide to learn what to expect in costs for an HVAC system and how to get the best value on a new air conditioner in 2024.

With the right information, you can make an informed purchase that keeps your home cool for years to come without breaking the bank. We'll cover the factors impacting AC prices this year, provide average cost ranges, and share tips to save. Arm yourself with knowledge so you can beat the heat at an affordable cost!

Average Cost of a New HVAC System in 2024

Getting a new AC unit is a big investment, but the good news is there are options at various price points. For a mid-sized, energy-efficient model with professional installation, expect to pay between $6,500 to $9,500.

Capacity

The capacity, measured in tons, determines how much area the AC can cool. Most homes need between 2 to 5 tons. Go too small and your AC won’t keep up; too big and it won’t run efficiently. Your HVAC pro can determine the right size for your home.

Efficiency

Look for a SEER rating of at least 13 for lower energy bills. The higher the SEER, the more efficient the unit. While more efficient models cost more upfront, you’ll save money each month on utilities.

One minute your furnace is pumping out hot air, the next it shuts off completely. Sound familiar? Short cycling is no fun when all you want is a warm home. But don't panic yet! Learning what causes furnace to short cycle can help you get to the bottom of the issue.

This article will cover the common culprits behind heaters that won't stay on and provide some troubleshooting tips to get your system back in working order. We'll look at aspects like dirty filters, faulty thermostats, and pressure switch problems. Keep reading and you'll be back to cozy and warm in no time!

Why Does My Furnace Keep Turning Off? Understanding Short Cycling

If your furnace turns on for a few minutes but then shuts off again, you likely have a case of furnace short cycling on your hands. Short cycling occurs when your furnace kicks on and off in quick succession, preventing your home from reaching the desired temperature. There are a few possible causes for this frustrating issue.

Faulty Thermostat: Your thermostat is responsible for telling your furnace when to turn on and off. If it's malfunctioning, it may trigger your furnace to cycle incorrectly. It's a good idea to check if your thermostat settings are correct and consider replacing the thermostat if issues continue.

Air Leaks or Poor Insulation: If air is escaping from your home, your furnace has to work harder to heat the space. Sealing up cracks and adding extra insulation can help.

Is your house feeling too hot in the summer and too cold in the winter? Are you overheating or freezing every time you enter your home? Chances are, your outdated HVAC system may need replacing. Purchasing a new unit is likely not on your to-do list, but delaying will only cost you more money over time. Let's evaluate the situation together. We'll review all the signs indicating it's time to call professional HVAC technicians for service or replacements.

With helpful insights, you can make an informed decision that potentially saves on expenses going forward. Soon you'll be experiencing cool, comfortable air in your home once again. Just having the right information and a qualified HVAC technician can restore enjoyable air temperature. Now, let's examine the specifics in more detail. Here is essential information about what factors to consider in replacing an aging air conditioner system.

Warning Signs Your HVAC System Needs Replacing

There are a few key indicators that show your HVAC system is due for replacement. Keep an eye out for these common warning signs that signal your unit is no longer up to the task:

Is your home feeling colder than usual? If your furnace isn't blowing hot air like it used to, you may have a problem on your hands. Before you panic, check out some of the common causes and solutions for a furnace not heating properly. It may be a simple fix that doesn’t take much time or money.

The good news is that many times it's something minor that you may be able to fix without needing a degree in HVAC repair. Things like a dirty filter, ignition or pilot light issues, or thermostat problems are often easy things you can troubleshoot. Of course, sometimes it is a more serious issue involving the furnace itself or the venting system, in which case calling a pro is your best bet.

Either way, now you've got an idea of where to start. Grab your wrench and flashlight, and let's figure out why your furnace isn't blowing hot air so you can get back to being comfortable at home.

Common Causes Behind a Furnace Not Blowing Hot Air

If your furnace isn't blowing hot air, there are a few common issues that could be causing the problem. First, double-check your thermostat settings. Make sure it's set to "heat" setting and that everything is working properly. If the thermostat seems fine, it could be the battery that may require replacement.

A clogged air filter is also a frequent culprit. Replace your filter every 1-3 months to allow proper airflow. If the filter is blocked, your furnace can't heat the air and will shut off.

If you’ve ever noticed strange smells coming from your furnace, don't panic! Most of the time it's nothing serious, but it is something to check out. As your furnace works hard to keep you warm all winter long, it's normal for a few odd odors to develop. But some smells can indicate an issue that needs attention. Here are the most common furnace smells, what's causing them, and when you need to call in the pros.

Burning Odors: Dust Buildup or Electrical Issues

If your furnace kicks on after being idle all summer and you notice a burning smell, it’s probably just burning off dust that accumulated over the off-season. This burning dust odor should clear up within a few hours as the dust burns away. However, if the smell persists or is very strong, it could indicate an excessive buildup of debris that needs to be professionally cleaned to prevent potential fire risks.

On the other hand, if your furnace smells like burning plastic or electrical wires, that signals an issue that requires immediate attention. This could indicate overheating components like the blower motor, damaged wiring, or even a cracked heat exchanger. Any of these situations can be dangerous, so shut off your furnace right away and schedule an emergency service call.

The AC Guy’s licensed technicians have years of experience diagnosing and repairing furnace issues. We’ll inspect your system to determine the cause of the burning smell, perform necessary cleaning or repairs, and get your furnace functioning safely again. Don’t put off dealing with potentially hazardous electrical or overheating issues—your home, health, and safety should be top priorities.

Rotten Eggs and Sewer Smells: Gas Leaks and Sewer Problems

Rotten Egg Smell: Gas Leaks

If there’s a rotten egg smell coming from your furnace, that’s a bad sign. Gas companies add a distinctive smell to the otherwise odorless natural gas to help detect leaks, and it means you’ve got a serious issue that requires immediate attention.

If your AC and furnace are on their last leg, it may be time to consider investing in a new HVAC system. Now you’re faced with a big decision: do you replace them both at once or stagger the replacements to spread out the cost? As terrible as it sounds to have to buy two new HVAC components at once, replacing your AC and furnace together actually makes a lot of sense both for your budget and your comfort.

Overview of an HVAC System

Your HVAC system includes both your air conditioner and furnace, working together to keep your home comfortable. Replacing just one part of the system may seem more affordable in the short term, but replacing both units at once, known as a dual replacement, often makes more financial sense and ensures maximum efficiency.

An HVAC system loses a bit of its efficiency for every year it operates. Over time, an older furnace and AC have to work harder to heat and cool your home, costing you more in energy bills and repairs. By replacing both units at the same time, you'll gain access to the latest technology and possibly find an AC and heater from the same company, which may lower the overall cost.

A dual replacement also means both units will have the same lifespan, so you won't have to replace one part of the system before the other is ready. This avoids potential compatibility issues from mixing older and newer equipment. It also minimizes installation fees since the work can be done all at once.

While the upfront cost of a dual replacement may be higher, the long-term benefits to your budget and home comfort are well worth it. For the best performance, lowest energy use, and fewest repairs, replacing your furnace and AC together is really the smartest option.

How Do UV Lights Work in HVAC Systems?

UV lights, or ultraviolet germicidal irradiation (UVGI), are designed to kill bacteria, viruses, mold, and other microbes in your HVAC system. UV-C bulbs emit UV light at a wavelength of 254 nanometers, which destroys the DNA of microorganisms and prevents them from reproducing.

There are two main types of UV lights for HVAC systems:

Improved Indoor Air Quality

If you want your family breathing clean, fresh air, you need to change your HVAC air filters regularly. These filters trap particles floating in the air like dust, pollen, pet dander, and air pollution, but after a while, they fill up with debris.

When that happens, the pollutants end up cycling through your home and suddenly you’re breathing in dirty, contaminated air. By swapping in a new, high-efficiency air filter every month or two, you can make sure your HVAC system is always trapping pollutants and allergens so you’re only breathing clean air.

Changing air filters regularly also helps your HVAC system run more efficiently since it’s not struggling to push air through a clogged filter. That means lower energy bills and a longer lifespan for your equipment. For such a simple task, regular air filter replacement sure provides a lot of benefits for your home environment and budget. So do yourself and your family a favor and change those air filters every month or two, especially if you have kids, pets, or allergies.

Fall is in the air and you’re probably already dreading those higher utility bills that come with cranking up the heat. But before you resign yourself to choosing between comfort and your wallet this winter, there are a few things you can do to ensure your HVAC system is running as efficiently as possible. Give your unit some attention now and you’ll be enjoying cozy fall nights at home without breaking the bank.

In just a few simple steps, you can make sure your heating and cooling system is ready for the drop in temperatures. Clear out the clutter around your air vents, change the filter, and schedule a tune-up. You’ll maximize the airflow in your home, reduce strain on the system, and catch any minor issues before they turn into big problems. Take an hour or two this weekend to show your HVAC some attention and you’ll be rewarded all season long. Fall doesn’t have to mean choosing between warmth and savings – with some easy maintenance, you can have the best of both worlds.

Change Air Filters for Proper Airflow and Quality

If you want to keep your home cozy and lower those energy bills this fall, changing your HVAC air filters is a must. Clogged, dirty air filters reduce airflow and efficiency, forcing your system to work harder and costing you more.

Do yourself a favor and swap out those old air filters for new ones. It only takes a few minutes but will make a world of difference in how well your furnace or heat pump operates. For the best results, opt for pleated, high-efficiency filters with a MERV rating of 8-12. These provide effective filtration without too much airflow restriction.

While you’re swapping out the air filters, give the vents and air ducts in your home a quick inspection. Make sure furniture, rugs, and other objects are not blocking the vents or airflow. Vacuum or dust the vents and air duct covers to remove any built-up dirt or debris. Ensuring your vents, ducts, and air filters are clean and unobstructed helps maximize your HVAC system's performance and keeps your indoor air fresh.

If you’re tired of sky-high utility bills and uncomfortable temperatures in your home, it's time to consider a Trane heat pump. You probably want an efficient system that keeps your house cozy all year without breaking the bank, and that’s what Trane offers. Trane is an industry leader, making high-quality heat pumps that can reduce your energy usage compared to a standard electric furnace. Their innovative systems provide reliable heating and cooling for homes of all sizes.

Forget about uncomfortable drafts, cold spots, and high energy bills. With a Trane heat pump, you can achieve whole-home comfort and dramatically lower your environmental impact. This winter, you'll be cozy knowing you've found an HVAC solution that works well and saves you money. A Trane heat pump is an investment in your family's comfort and your home's future.

What Are Heat Pumps?

Heat pumps are an energy-efficient heating and cooling system perfect for year-round comfort. They work by transferring heat between indoors and outdoors, providing both heating and air conditioning.

They can also generate 3-5 times more heat than the energy they consume, making them much more efficient than furnaces. The best heat pumps provide substantial energy savings, cost-effectiveness, and environmental benefits.

To find the perfect Trane heat pump for your needs, consider factors like your local climate, home size, and budget. A Trane Comfort Specialist can assess your home and recommend the right solution to optimize comfort and savings. The best value heat pumps strike a balance, offering high efficiency, quality, and performance at an affordable price point.

As the unsung hero of our homes, the thermostat keeps our living spaces comfortable throughout the year. Paired with our heating and cooling systems, this essential device perfectly regulates indoor temperatures. But like any household appliance, thermostats are prone to occasional hiccups.

There's a myriad of reasons why a thermostat may malfunction – from wiring complications to defective components. Yet, among the most prevalent issues homeowners face is a powerless thermostat. Fear not; we've gathered practical troubleshooting tips to help you address this problem.

Read on to discover the potential causes of your thermostat's power loss and learn how to rectify the issue promptly.

Ensuring Your Thermostat's Power Supply

First and foremost, ensure that your thermostat is receiving power. Head to your home's circuit breaker – your thermostat's power switch resides there as it derives power from your home's electrical system. Power outages might trip your circuit breaker, causing your thermostat to lose power. To address this, inspect your circuit breaker and make sure the breaker powering your thermostat is turned on. If it's off, attempt to reset it.

The Problem of Dead Batteries

Sometimes, the reason behind a powerless thermostat lies in its worn-out batteries. The controls and display of your thermostat typically rely on battery power. Over time, these batteries will inevitably lose their charge and fail. If it's been a while since you replaced these batteries, this might be the source of your problem. Replacing them with a fresh set can restore your thermostat's power quickly. You can find these batteries by removing your thermostat's cover. For specific guidance on changing batteries, consult your thermostat's user manual.