Why My Furnace Is Not Blowing Hot Air? Interesting Facts !

Table of Contents

In this blog post, we will study in detail the reasons and solutions for why a furnace is not blowing hot air.

Why My Furnace Is Not Blowing Hot Air

Common Reasons Why Furnace is not Blowing Hot Air

To troubleshoot why your furnace is not blowing hot air, you need to understand the common reasons behind it. 

Dirty Air Filter

A clogged air filter can stop hot air from flowing through your furnace, reducing airflow and affecting performance. 

This is because a dirty filter doesn’t let enough air pass over the heat exchanger. This can overheat the system and cause it to shut down for safety. 

To avoid this, change your filter every 3 months – or more often if you have pets or allergies.

A dirty filter also makes your furnace inefficient. This means you’ll be cold and your energy bill will be higher. 

Plus, dirty filters let pollutants like pet hair and dust mites circulate in your home, affecting indoor air quality.

Thermostat Setting

Maintaining the right thermostat setting is essential to make sure your furnace blows hot air. 

Incorrect calibration can mean too much or too little heat, leading to discomfort and expensive bills. Keep it at or below 68 degrees Fahrenheit to save energy.

Your furnace might blow cold air if you don’t adjust the airflow settings to your home’s size and insulation. 

A dirty air filter can cause poor performance and cool air instead of hot.

Pilot Light

One of them could be the pilot light. This small flame is important for igniting the burners and heating your house. If it goes out, then expect your furnace to underperform.

You can usually spot the pilot light near the burners, behind a removable panel. Check for a blue flame. 

If it’s not lit, try to relight it according to the manufacturer’s instructions. Sometimes the thermocouple, which detects if the flame is on, may be the cause of the pilot light not staying lit. 

Checking your furnace regularly and maintaining it will help avoid problems with the pilot light and ensure it runs smoothly throughout its lifespan.

Flame Sensor

The Flame Sensor is a key part of your furnace. It stops gas leaks and lets the burners light up. 

It spots the flame from the pilot light or main burner and tells the furnace control board to turn on the blower fan so warm air comes out.

Here are some facts about the Flame Sensor:

  • Purpose: To see if there is a flame
  • Location: Near Burners
  • Detection Type: Infrared Signal
  • Maintenance: Clean with Fine Grit Sandpaper

A bad or dirty Flame Sensor can stop your furnace from making heat and cause cold living conditions. It can also cause damage to your furnace, leading to costly repairs or replacements.

Fan Limit Switch

The Fan Limit Switch is a major part of your furnace which regulates the fan’s temperature. It’s set to switch on/off to manage the furnace’s heat.

When your furnace is switched on and cold air comes out instead of warm, this could suggest issues with the Fan Limit Switch. It might not be working correctly, leading to no hot air circulating.

It’s vital to check that all sensors are connected and working, as malfunctions can alter the air temperature.

Gas Valve

The Gas Valve is key for the furnace’s operation. It controls gas flow to the burner. When it’s not functioning right, no hot air reaches your home.

Here’s what to look out for:

  • Clogged pilot – No heat.
  • Corroded valve – Weak flame.
  • Broken igniter – Inaccurate temperature.

Older furnaces can also struggle with ignition due to dirt or worn parts. Regular maintenance and cleaning can keep your furnace running smoothly.

Protect your family and avoid repairs. Get a professional tune-up every year. If you spot any issues, act fast!


Furnace overheating can be a sign of a malfunctioning system. High temperature can harm the internal components and reduce efficiency. 

Listen out for strange sounds or smells coming from the furnace, or if it shuts down suddenly. It’s time to call a professional.

Dirt and debris build-up in the air filter is often the cause of overheating. This makes the furnace work harder, leading to higher temperatures and inefficiency. 

Replace the air filter regularly, as per manufacturer’s instructions.

High Limit Switch

Is your furnace not blowing hot air? The High Limit Switch could be the cause. It’s a safety device that turns off the furnace when it gets too hot, to prevent fires. When it senses high temperatures, the burner is shut off.

The following table shows more details about the High Limit Switch:

High Limit Switch
Location: Near heat exchanger or blower drive
Function: Prevent overheating & fires
Symptoms: Furnace starts but no warm air; frequent cycling

The High Limit Switch protects you from potential hazards – like fires caused by overheating. 

If your furnace starts but no warm air is coming out, or it cycles on and off often, it may be the High Limit Switch.

Control Board

Looks like the burners need a break! But, no worries–they’ll be back to work soon. 

Before attempting any repair work on your furnace, it’s important to check if there is an issue with the Control Board. 

To detect faulty Control Board, check if the flame sensor isn’t sensing flame properly.

These are some common issues and causes:

Common IssuePossible Cause
Furnace won’t turn onBroken fuse and relay issues
Furnace fails to produce hot airFaulty thermostat wire connections or sensor issues


It’s important to remember that all furnace models are different. Professional help may be needed for diagnosis and repair.

Keep your furnace running smoothly with regular maintenance. Don’t let a faulty burner ruin your winter! Avoid clogged ductwork like you would fast food – stay healthy!


The table below shows some common ductwork problems.

LeaksHoles or gaps letting warm air escape.
BlockagesDebris and other blockages stopping hot air from flowing.
Poor insulationLacking insulation, ducts absorb and lose heat.

Dust can cause blockages and poor air quality.

To keep ductwork running smoothly:

  • Inspect and clean regularly.
  • Replace filter spinners.

Insulated ducts save energy. A well-kept furnace could save 30% on electricity.

Preventive steps like cleaning and inspections can save you costly HVAC repairs. Follow these tips to warm up your furnace and your home.

Steps to Troubleshoot Furnace Problems

To troubleshoot furnace problems for your heating system, with common issues like cold air or no heat, and ensure that it is in good working order, you need to take various steps. 

Check Air Filter

To keep your furnace healthy and efficient, check the air filter often! A clogged filter can lead to reduced airflow and overheating. 

Here are some easy steps to follow:

  1. Locate the air filter, usually near the blower motor in horizontal/vertical furnaces.
  2. Turn off the furnace before changing the filter.
  3. Inspect the old filter for dirt buildup and damage.
  4. Replace the old filter with a new one that fits your furnace size and type.
  5. Secure the access panel and turn on the furnace.

Verify Thermostat Settings

Checking your furnace’s thermostat settings can be tricky. Here’s a guide to help you out!

  1. First, make sure the thermostat is receiving power.
  2. Then, raise the temperature and listen for any signs of life.
  3. Replace the batteries if they’re weak.
  4. Also, check the wiring connections to make sure they’re secure.
  5. Some thermostats have an adjustment lever or switch – check that too!
  6. Lastly, check the pilot light – if it’s not lit, your furnace won’t work at all!

With these steps, you can troubleshoot your furnace and avoid costly repairs.

Inspect Pilot Light

A furnace problem can really put a damper on your day. A malfunctioning pilot light could be to blame. To inspect it, here’s a 5-step guide:

  1. Turn off the furnace.
  2. Find the gas valve near the bottom and switch it to ‘off’.
  3. Check the manufacturer’s instructions or look for a small blue flame near the bottom of the furnace.
  4. Remove any dust or debris that may have collected around the pilot light or burner.
  5. If cleaning doesn’t help, relight the pilot according to the manufacturer’s guidelines.

Clean Flame Sensor

Cleaning your furnace’s flame sensor is essential. Not doing so can result in malfunctions or it not working at all. 

To make sure your furnace functions properly, here’s what you should do:

  1. Shut off the power supply to the furnace.
  2. Spot the flame sensor – it looks like a metal rod within the burner assembly.
  3. Detach the sensor with a wrench/screwdriver and clean it using fine-grit sandpaper until it’s spotless.
  4. Fasten the sensor as securely as you can and switch on the power.

Reset the Furnace

Your furnace behaving oddly? Reset it! Here’s how:

  1. Locate the power switch and turn it off.
  2. Wait 60 seconds.
  3. Flip the switch back on.
  4. Check the thermostat, adjust if needed.
  5. Inspect the air filters, replace if needed.
  6. If nothing works, call an HVAC technician.

Check Fan Limit Switch

The fan limit switch in a furnace is very important. If the blower motor keeps running after the burners shut off or before they ignite, check the fan limit switch.

Turn off power at the circuit breaker and furnace switch. Find the fan limit switch near the burner assembly and remove it. Clean any buildup around it with a soft brush. Put the switch back and turn the power on.

Rotate the dial slowly until you hear a “click.” This means the fan limit switch is reset. Set your furnace temperature for heating mode and wait a few mins. Check if ventilation is proper.

When reinstalling the fan limit switch, make sure all wires are tight and clean. Loose connections could cause problems.

Inspect Gas Valve

As homeowners, we often forget our furnace’s capabilities until it stops working.

Here’s how to inspect:

  1. Turn Off the Furnace – To prevent any issues, switch off your furnace before starting the inspection.
  2. Locate the Gas Valve – Usually near the burner, you can identify it easily with the knob and label.
  3. Check for Debris – Over time, gas valves can clog with debris from pipes and wires.
  4. Look for Wear & Tear – High usage can wear out seals and joints.

Check for Overheating

A furnace is a must-have for any winter home. But, it can overheat. To stop this from happening:

  1. Make sure the thermostat is set correctly.
  2. Ensure nothing is blocking airflow.
  3. Examine, and if needed replace, the air filter.
  4. Check fuel flow, if your furnace runs on gas or oil.
  5. Check the blower motor to make sure it works.

Reset High Limit Switch

It’s important to know how to reset the high limit switch if you want your furnace to continue running effectively. 

This is a safety feature that shuts off the furnace when it gets too hot, avoiding dangers such as fires. 

Follow these 6 steps to reset the switch:

  1. Turn off the power: First, make sure to switch off the circuit breaker and main power switch.
  2. Locate the switch: Find the switch on or near the blower motor.
  3. Press the button: Press and hold the red button, which is usually labeled “RESET”, for around 30 seconds.
  4. Troubleshoot: If this doesn’t work, you may have to contact a professional technician for further troubleshooting.
  5. Restore power: Turn the power back on.
  6. Cycle the furnace: Restart the furnace and make sure it functions properly.

Check Control Board

Checking the control board when troubleshooting furnace problems is essential. This board acts as the furnace’s brain by controlling its functions.

The table below shows the key points:

Control Board ChecksTrue/Actual Data
Power supply120 volts AC
FusesIntact and not blown
Circuit BreakerNot tripped or switched off
Wiring connectionsSecure and tight
Control Board ComponentsNo signs of damage or burning

Clean Burners

Clean burners are essential for smooth furnace unit operation. Dust build-up and blockages can lead to inefficiencies or worse.

Follow these steps to clean your burners:

  1. Turn off the power and let your unit cool down.
  2. Utilize a soft-bristle brush or vacuum cleaner to clear debris.
  3. Remove individual burners and clean with steel wool or sandpaper. Avoid using water.
  4. Clean carbon deposits with a wire brush.
  5. Carefully replace burners.
  6. Clean sides of burners with a mixture of dish soap and warm water. Don’t oversaturate.

Check Ductwork

Troubleshooting your furnace? Check your ductwork first. Make sure vents aren’t blocked by furniture or rugs. Look for tears or leaks that could affect efficiency and air quality. This will prevent long-term damage.

Check connections too. Leaky seams and gaps can lead to air loss, lowering heating power. Inspect ducts in unheated areas such as attics and basements.

DIY tip: Use incense to test for leaks. Hold the lit stick near air registers and see which way the smoke is blown.

Take care of your ductwork for energy savings, money savings, and reliable furnace operation. Get your furnace back in action!

Solutions to Fix Furnace Problems

To fix furnace problems, you’ll need to take some necessary steps. Replace the air filter to avoid problems caused by dirt and debris. 

Adjust the thermostat settings as required to maintain proper heating systems. Relight the pilot light whenever necessary to keep the system running. 

If there’s a problem with the flame sensor, you’ll need to replace it. If the fan limit switch fails, you should call an HVAC technician for replacement. 

Similarly, if the gas valve or high limit switch are the culprits, contacting an expert is the best solution. 

Call an HVAC technician for an overheating problem. Dirty burners can reduce efficiency. 

Get your ductwork checked and repaired by an expert to avoid serious furnace issues.

Replace Air Filter

Remember to keep your air filter clean! Neglecting it can cause poor airflow and more energy usage. 

Here’s how to replace it in three steps:

  1. Locate the air filter panel near the blower motor or return air duct. Shut off the furnace before opening the panel for safety.
  2. Remove the old filter carefully. If it’s reusable, clean it before putting it back. Otherwise, throw it out and replace it with a new one that matches your furnace’s specifications.
  3. Slide the new filter into position and make sure it fits snugly. Secure the panel and turn on the furnace. Cleaner air and less energy usage!

Adjust Thermostat Settings

To keep your home comfy, adjusting the thermostat is crucial. Here are some tips:

  • Set the temperature between 68-72 degrees Fahrenheit.
  • Change the time to fit your daily routine.
  • Program it for seasonal changes.
  • Clean or replace the filters.
  • Switch to a programmable or smart thermostat.
  • Call an HVAC pro if experiencing problems.

Relight Pilot Light

When your home’s pilot light goes out, don’t panic. Relighting it is simple and can save you money. 

Here’s how:

  1. Turn off the furnace’s power supply.
  2. Find the gas valve and turn it off. Wait five minutes.
  3. Use a long lighter near the opening of the furnace below the pilot light.

Replace Flame Sensor

Furnace troubles can be a real nuisance for homeowners. You must be on the lookout for warning signs and take action right away. One reliable way to fix furnace issues is replacing the flame sensor.

Here’s how to do it:

  1. Start by taking out the main service panel from your furnace.
  2. Identify the flame sensor and remove it with a screwdriver or pliers.
  3. Replace it with a new one and make sure you fasten it securely.

Home Advisor reports that the average cost of HVAC repair or servicing is between $160-$500.  

Call HVAC Technician for Fan Limit Switch Replacement

Replacing the fan limit switch in your furnace is a difficult job. To get it done right, you need an HVAC technician.

Here’s a 3-step guide:

  1. The technician will turn off your furnace.
  2. They’ll remove the old switch and put in a new one. This might include wiring and testing.
  3. They’ll turn the furnace back on and test it.

Call HVAC Technician for Gas Valve Replacement

Replacing a gas valve is a complex task that should only be done by certified HVAC technicians. Doing it yourself can be dangerous and illegal.

Here’s how to navigate the process:

  1. Find a reputable HVAC company in your area.
  2. Call them and make an appointment with a licensed tech.
  3. Let the technician complete the job following safety protocols.

Call HVAC Technician for Overheating Issues

Overheating in your furnace can be really uncomfortable and even dangerous. It’s always better to call an HVAC technician. 

They know what they’re doing. With their expertise, they can accurately identify the problem. 

They’ll examine the unit, check for mechanical issues, look at filters and ductwork and suggest repairs.

Regular maintenance of your furnace is key to avoiding overheating. Cleaning and inspecting it will make sure all parts are working as they should, so there’s no extra stress on them. 

Dirt or grime on parts can cause overheating and stop the system from producing enough heat. So, call in a pro for maintenance. 

Call HVAC Technician for High Limit Switch Replacement

A faulty furnace is a major cause of discomfort and needs quick action. An HVAC technician can replace the high limit switch, thus restoring the furnace’s performance and decreasing energy consumption. 

Here’s a five-step guide on calling an HVAC technician for high limit switch replacement:

Step 1Observe the furnace’s behavior to identify the problem.
Step 2Look up certified HVAC technicians in your area online or through phone directories.
Step 3Call and make an appointment, making sure the technician is insured and licensed.
Step 4Explain the issue, give details like the furnace’s make and model, and schedule an inspection.
Step 5The technician will arrive at the designated time and replace or fix the damaged high limit switch, according to industry standards.

Call HVAC Technician for Control Board Replacement

Your furnace’s control board is its “brain“. Malfunctions can cause it to stop working, or run in an inefficient way. 

So, if you experience signs of trouble, like frequent cycling or power issues, it’s time to call an HVAC technician. They’ll diagnose and inspect to see if the board needs replacing.

Replacing a control board isn’t a job for a DIYer. An experienced technician can do it safely and efficiently. 

The cost is usually between $200 and $600. It’s a wise investment, as it can save money in the long-run due to energy savings. So, trust an HVAC tech to replace your control board!

Clean Burners

Keep your furnace in good shape by regularly cleaning its burners. It helps with efficiency, air quality, and may even extend its life.

  1. Shut Off Gas & Power. Turn off the gas and power supply to the furnace for safety.
  2. Take Out Burners. Remove the furnace cover and take out the burners gently.
  3. Brush Away Debris. Use a soft-bristled brush to sweep away any debris near the burner ports.
  4. Soapy Water Clean. Get a cloth damp with soapy water and wipe down the burners. Don’t leave any moisture on them.
  5. Reassemble. Put the burners back in place, replace the furnace cover, and turn the gas and power supply back on.

Call HVAC Technician for Ductwork Repairs

As a homeowner, it’s important to make sure your furnace is running smoothly. 

If you have any issues with your ductwork, calling a HVAC technician is key. This can lead to reduced air quality, energy loss or even system failure.

A technician can assess your ductwork and find the problem. They use tools and techniques to fix any cracks or faults in the system

From sealing joints to replacing sections if necessary, a pro can take care of everything.

Regular maintenance can prevent ductwork repairs. Scheduling yearly tune-ups and changing filters can keep your home free of dirt and debris, decreasing wear and tear on your HVAC system.

Maintenance Tips for Furnace System Efficiency

To keep your furnace system in working order and improve its efficiency, you need regular maintenance. 

  • Change air filters regularly
  • Clean and inspect system components
  • Schedule professional maintenance
  • Seal leaky ducts, and upgrade to a new 
  • Energy-efficient furnace

These tips will help reduce issues, prevent overheat, and lengthen your furnace system’s life.

Change Air Filters Regularly

Make sure to keep your furnace system running efficiently. Change your air filters regularly to get the most out of your HVAC unit. 

Here’s how it can help:

Air Quality

Traps dust, dirt, pet dander and allergens, making the air fresher

Heat Distribution

Clean filter ensures smooth airflow throughout vents

Save on Bills

Clogged filter obstructs airflow, causing HVAC to work harder

Maintenance Costs

Dirty filters shorten HVAC’s lifespan, costing more in repairs

Clean and Inspect System Components

Maintaining your furnace system is essential for its performance and life. To keep your furnace running well, you need to clean and inspect its components. 

Here’s a 5-step guide:

  1. Turn off the power. This is to avoid any electrical shocks.
  2. Clean or replace air filters. Dirty filters can block air flow and reduce efficiency. Do this each month during colder months.
  3. Clean the blower compartment. It often collects dust and debris, so clean it with a soft-bristled brush and vacuum.
  4. Inspect belts and pulleys. Look for wear and damage. Replace any worn parts to stop further damage.
  5. Clean burners. Remove dust and debris with a wire brush.

Schedule Professional Maintenance

For great furnace efficiency and life, regular maintenance by an expert is essential.

 Here’s a step-by-step guide to Schedule Professional Maintenance:

Find a reliable HVAC companyWith so many options out there, it can be difficult to decide. Look for one with years of experience and good customer reviews.
Book an appointmentAfter picking a company, schedule an appointment with their technicians. They’ll check your furnace system for any signs of wear and tear like leaks or cracks.
Inspection reportAfter inspecting your system, they’ll provide you with an inspection report and suggest any repairs or replacements. This might include cleaning vents, replacing filters and checking settings.
Maintenance contractAfter completing the inspection report and repairs, most companies offer annual maintenance contracts. This way, you don’t have to remember when to book appointments – it’s all taken care of.

To ensure your furnace works properly, try these tips:

  1. Change air filters often at least every three months as dirty filters can block airflows, resulting in higher energy use.
  2. Make sure proper airflow throughout your home by opening or closing the vents to regulate airflow in each room. This can significantly reduce energy costs in the long run.

Seal Leaky Ducts

Say goodbye to high energy bills, leaky ducts, and poor indoor air quality. To prevent these, begin by locating any duct leaks with an inspection.  

Then, use a damp cloth to clean the area around the leak. Next, apply foil tape or mastic sealant to fill in and cover up the leaky areas. Use insulation around your ducts to keep them from leaking in the future. 

Repeat the process until all leaks have been sealed, or consider help from an HVAC professional if necessary.

Furthermore, regularly cleaning and changing furnace filters can help keep your system running efficiently. 

Lastly, schedule regular maintenance check-ups with a licensed HVAC professional to catch any potential issues before they become major problems. 

Upgrading your furnace is also an easy way to increase efficiency and save money on energy bills.

Upgrade to a New, Energy-Efficient Furnace

Installing a more energy-efficient furnace can boost your system’s efficiency. 

Points to consider:

  • Different sizes and types of furnaces are available. Pick the one best for your home.
  • An energy-efficient furnace reduces energy consumption, saving you money on monthly bills.
  • Some models come with smart tech that balances heat output, making it even more efficient.
  • Modern furnaces have better safety features, helping to prevent accidents.
  • If your old furnace needs constant repairs, upgrading will save you time and money in the long run.

Safety Measures for Furnace Repairs

To ensure your safety during furnace repairs, it is important to take certain precautions. 

Follow these simple steps to stay safe and prevent accidents while repairing your furnace: 

  • Turn off power to the furnace
  • Check for gas leaks
  • Wear safety gear
  • Follow manufacturer instructions
  • Call a professional

Turn Off Power to the Furnace

Furnace repair can be dangerous if not done appropriately. So, it’s essential to switch off the power before starting any repairs. 

Here’s how:

  1. Locate the electrical panel where the furnace circuit breaker is situated.
  2. Switch off the circuit breaker that controls your furnace.
  3. If there’s no clear labeling, turn off all the circuit breakers for safety.
  4. Check all lights and appliances attached to power outlets near the furnace are switched off before attempting repair.
  5. Look for an ON/OFF Switch located on or near the furnace and turn it off too.
  6. If you are unsure, best to reach out to a professional technician.

Check for Gas Leaks

When it comes to furnace repair, checking for gas leaks is a must! It keeps things safe for people and property. 

Here’s a guide to help you:

  1. Turn off the furnace and all gas appliances in the vicinity.
  2. Sniff for gas near the furnace.
  3. Use soapy water to find any leaks on pipes and fittings.
  4. Check for any cracks or damage on the pipes or valves.
  5. If you suspect a leak, no electrical switches or open flames are allowed!
  6. Call an HVAC pro right away if you detect gas.

And don’t forget to get a carbon monoxide detector installed in your home. This odorless, toxic gas can be produced by furnaces.

Wear Safety Gear

Protecting yourself when working on a furnace is key. Wear safety gear to keep you safe. 

Put on clothing that covers your body from spills, hot surfaces and tripping. Don’t forget to wear goggles to protect your eyes. 

Wear gloves too, to hold tools securely. And good footwear to keep your balance.

Safety gear isn’t just clothing. Protect your lungs with a mask that filters fumes and dust. Taking safety measures is critical. 

Follow Manufacturer Instructions

For your protection during furnace repairs, it is key to stick to the manufacturer’s directions. Disregarding them could bring about major harm or injury.

Here is a 6-step guide on how to comply with these instructions correctly:

  1. Read the handbook carefully before trying any repair.
  2. Grasp all safety precautions mentioned in the handbook.
  3. Double-check the kind and size of parts needed for repair.
  4. Follow specific instructions pertaining to taking apart and putting together parts.
  5. Take extra caution while handling electronic components or gas lines.
  6. After fixing, check for correct operation of your furnace.

Call a Professional if Unsure

When it comes to furnace repairs, caution is key. As furnaces are complex systems with intricate parts, a professional technician is needed to diagnose and repair any issues safely and efficiently.

If you do decide to go ahead with the repair, take all necessary precautions. Wear protective gear such as gloves and goggles to avoid burns or electrical shock. 

Make sure you switch off power to the furnace before beginning. Also, turn off the gas-fueled furnace’s fuel line.


What should I do if my furnace isn’t blowing hot air?

It’s quite common for a furnace to not blow hot air.

Here are five steps to help:

  1. Check the thermostat settings. Make sure it’s on “heat” and the temperature is higher than the actual room temp.
  2. Inspect the air filter. If it’s clogged, it can prevent warm air from circulating.
  3. Check the pilot light or ignition switch. Without it working, the furnace won’t have power and won’t blow hot air.
  4. Inspect the ductwork for leaks or blockages. Damaged ducts can keep hot air from reaching certain areas.
  5. If these DIY fixes don’t work, call a technician. Complex issues need an expert’s assessment and repair.

How often do I need to change the furnace filter?

The furnace filter is important for your furnace. It stops debris and dust from entering the system. 

Changing it regularly is wise. It’ll make your furnace run better, last longer and save energy.  

  • Usually, replace it every one to three months – depending on how much it’s used.
  • If you own pets or have allergies, change it each month.
  • In polluted areas or if there’s nearby building work, change it more often.
  • Check the filter monthly to see if it’s clogged or dirty.

Can I fix furnace problems myself, or do I need to call a professional?

Furnace issues can be annoying and expensive. Some are minor, but others need professional help. 

Consider your skill level before attempting to fix it. Safety comes first and you don’t want to cause more damage. 

Not doing preventative maintenance is a major cause of furnace failure. Cleaning the components stops debris building up and messing up functioning. 

Should I upgrade my old furnace to a new energy-efficient one?

As winter approaches, many consider investing in a new, energy-efficient furnace. Old furnaces may seem to work well, yet they often cause inefficiencies in energy usage. 

With a high-efficiency gas furnace, you’ll enjoy optimal heating while also reducing your energy bills.

Benefits of upgrading are clear. Energy-saving furnaces use less energy and lower CO2 emissions. 

Plus, some models feature programmable thermostats to adjust temperature according to comfort levels. And, better safety features mean lower fire and carbon monoxide risks.

Though there are upfront costs, it’s worth noting that the savings on utility bills will eventually pay for the new furnace

Reports suggest that typical homeowners can save up to 15% of their annual heating bill with a high-efficiency system.

Energy Star certified gas furnaces use 6% less energy per year, plus they’re safer and more comfortable. 

How can I maintain my furnace system to keep it running at its best?

To keep your furnace running optimally, regular maintenance is a must. 

Here are some tips for you:

  • Change air filters monthly
  • Clean the blower assembly yearly
  • Check vents and ducts for blockages often
  • Inspect and clean burners annually
  • Hire a professional technician for annual maintenance checks


To wrap it up, we can say that by maintaining and having a regular inspection of the furnac one can avoid the problem of blowing less hot air in the furnace system,