Why Does My Furnace Shut Off Before Reaching the Temperature I’ve Set?

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Has your furnace stopped blowing warm air before it reaches the target temperature? If you find yourself thinking, “Why does my furnace shut off before reaching the temperature I’ve set”? You are not alone. This is a very common furnace problem, and can be very frustrating if you are trying to maintain a comfortable indoor environment at just the temperature you like.

In this article, we’ll review some of the reasons your furnace may be shutting off before it reaches its target temperature.

Thermostat Problem

You may simply need a new thermostat to resolve your problem. This is especially true if you have an older dial-type thermostat, which may be calibrated incorrectly. It may also have become less accurate over time as its components age. Pick up a new thermostat and replace your older model to see if this solves the problem.

Sensor Problems

There may be something causing a sensor to turn off the furnace after reaching a certain temperature. A malfunctioning, blocked or dirty flame sensor could be the issue. Luckily, this is easily resolved by maintaining a regular furnace maintenance schedule to ensure your flame sensor stays free of dust and debris.

Blocked Airflow

A lack of airflow can cause your furnace to stop heating before reaching the set temperature. Ensure there is nothing impeding airflow around your furnace, within your furnace and through your ducts. Check that registers are open, no ducts are damaged or crushed and replace your furnace filter. Inside your furnace should be clean and free of debris, especially around the blower motor and the heat exchanger. Move any furniture, boxes or other objects away from the furnace itself.


If your furnace is overheating, it could be shutting off prematurely before it reaches your desired temperature when the temperature safety limit is reached. Ensure that your furnace filter is clean and there are no other obvious signs of broken or loose parts inside your unit. If the problem is still occurring, shut off your furnace and call a professional for service. An overheated furnace can be extremely dangerous and can cause further damage if the problem is not addressed.

Are you still wondering, “Why does my furnace shut off before reaching the temperature I want”? The HVAC team at Evam Canada can answer your questions and diagnose and repair any furnace issues you may be experiencing. To book an appointment, contact us online or give us a call at 905-624-5544.

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Why Does My Furnace Keep Turning On and Off?

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One of the most common furnace troubleshooting questions we hear from our customers is, “Why does my furnace keep turning on and off?”. Normally, furnaces should cycle on only when the temperature in your home is lower than the pre-set temperature you have input at the thermostat. When the desired temperature is achieved, your furnace should turn off and only turn back on when required to bring the temperature back up.

However, some homeowners may find that their furnace is constantly cycling on and off, which can become more than just an annoyance – it can also indicate a serious problem. Luckily, there are some simple explanations for why this might be happening with your furnace:

Thermostat Errors
If your thermostat is faulty or is set incorrectly, your furnace may be signalled to turn off and on more frequently than necessary. Carefully review your thermostat’s settings and make sure they are correct. Next, consider the placement of your thermostat in your home, and move it if it is close to a heat source or direct sunlight, which may be signalling your furnace to shut off. A furnace turning on and off can also be the result of a faulty thermostat, so it may need to be completely replaced.

Short Cycling
Short cycling is often the number one answer to the question, “Why does my furnace keep turning on and off?”. Short cycling usually involves issues with the furnace itself, starting with a simple dirty air filter to a major issue with the circuit board. There are many other serious furnace issues that can cause short cycling, such as:

  • Cracked heat exchanger
  • Improper or clogged venting
  • Malfunctioning inducer
  • Dirty flame rods
  • Improperly sized furnace
  • And more

These are just some of the issues that can cause your furnace to overheat, thereby triggering safety measures which shut off your furnace. Once it cools down, the furnace will start up again and the cycle will repeat over again until the problem is resolved.

Our team recommends seasonal furnace maintenance to avoid these potential furnace issues and to prevent short cycling from occurring in the first place. Regular tune-ups and/or replacement of broken and damaged components can ensure your furnace keeps running efficiently.

If you are still left asking, “Why does my furnace keep turning on and off?” we are here to solve the problem. Evam Canada is pleased to offer emergency furnace repair services to Mississauga and GTA residents. Our technicians are available around the clock to quickly respond to your furnace issues when you need us most!

Call us at 1-905-642-5544 for fast and friendly emergency furnace repair now.

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What is a Furnace?

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A furnace is a type of heating equipment used in residential homes and commercial properties to keep the indoor climate comfortable during the cooler months of the year. Adding heat to your home in an affordable and reliable way is important for many homeowners, which is why furnaces are the heating method of choice across Canada when compared to less convenient and often costly alternatives like electric baseboard heaters, space heaters or wood stoves.

The furnace is a vital component of any heating system, and knowing a little bit about how they operate can help you choose the right model and make sure your furnace is always operating efficiently. Read on to discover more about furnaces and how they work to keep your home warm.

What is a Furnace and How Does it Work?

If your home has central heating, you may be wondering just how your furnace operates. So, what is a furnace good for besides taking up space in your basement? A furnace is the most critical component of your property’s HVAC system, keeping you comfortable all year around.

Your furnace is made up of three primary parts: The burner, heat exchanger and blower. The burner ignites the fuel source (usually natural gas) via the pilot light, and begins to warm the heat exchanger to the desired temperature. Once this temperature is reached, the blower will force air overtop the heat exchanger and transfer it through the ductwork and vents within your home.

When you adjust the thermostat, your furnace adjusts accordingly to deliver air at exactly the temperature you want. If you’ve set your thermostat to maintain a particular temperature, it will turn on any time it senses that the room temperature is below the pre-set temperature.

Types of Furnaces

There are several types of furnaces, but the most common type is the gas furnace. Gas furnaces are one of the most effective and energy-efficient ways to heat your home. Most furnaces operate in the same way, but may use a different fuel source. Less common furnace fuel sources include oil, propane and electricity. Aside from using various sources, furnaces are available in single-stage, two-stage and variable speed operation modes. There are also a broad range of efficiency levels when it comes to the furnaces on the market today.

There are many factors that will determine which type of furnace is right for you, depending on the size of your home, average climate in your area, your existing HVAC system as well as your budget. The best way to discover the right furnace for your home is to consult with a furnace specialist who can recommend equipment that suits your needs.

Looking for more information about furnaces? We can answer all your questions, including, “What is a furnace?” and “Which furnace is right for my home?”. The furnace experts at Evam Canada are available to help you select the ideal furnace according to your heating needs and desired efficiency rating. Contact us today for more details!

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How to Service a Gas Furnace

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Regular maintenance is key to prolonging the life of your furnace, making sure that it works well for many years to come. Whether you choose to perform your furnace maintenance annually or seasonally, by yourself or with the help of an expert, it is important that you thoroughly service your equipment to keep it in top condition.

The experts at Evam have put together these tips on how to service a gas furnace at home so you can enjoy a trouble-free heating season this year! Remember, before performing any of these maintenance tips, always shut off your furnace for safety reasons.

  1. Change the Air Filter

While this is an obvious gas furnace maintenance step, many home owners do not change their air filter often enough. Since dirt and debris in the filter can greatly reduce the efficiency of your furnace, be sure to change your filter regularly, especially during the heating season.

  1. Get Vacuuming
    Open your furnace and vacuum around the blower motor to remove dust and debris. Next, vacuum around the exterior of your gas furnace. Finally, vacuum all of the air registers around your home to make sure they are clear as well. Any blockages can restrict airflow and cause your furnace to be less efficient.
  2. Lubricate the Blower Motor
    A well-lubricated and clean blower motor works more efficiently and stays cool. While many gas furnaces feature permanently lubricated motors, others have oil ports above the bearings that need to be tended to on an annual basis. Add a few drops of non-detergent motor oil to each oil port. Always consult your furnace manual or a professional if you aren’t sure what type of oil to use.
  3. Clean the Pilot Light, Flame Sensor & Igniter
    Use a drinking straw to blow dust off of the pilot light and igniter, and use an emery cloth to remove dust and carbonization from the flame sensor. Dirty pilot lights, igniters and flame sensors can cause issues with your furnace not turning on, or prevent it from heating cool air.
  4. Inspect All Components
    Look at the heat exchanger, blower motor, fan belts, condensate line and more for signs of rust, cracks, holes and general degradation. If you notice any of these signs, be sure to call in an HVAC repair technician to handle these more difficult service tasks and repairs.

Not sure how to service a gas furnace? At Evam Canada, we offer hassle-free gas furnace maintenance plans that will keep your equipment working efficiently! Our expert furnace service technicians are familiar with all makes and models, and can handle everything from minor repairs to the installation of a brand new furnace.

To book a service appointment for your gas furnace

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Can I Perform My Own Gas Furnace Maintenance?

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Plenty of homeowners wonder if they can DIY their furnace maintenance tasks to save time and money. But is this a good idea? A furnace is a complex piece of equipment. When you add to that the dangers related to its fuel source, natural gas, there is a lot of room for error when it comes to performing your own gas furnace maintenance.

Most HVAC companies do not recommend that you perform repairs or complicated maintenance on your gas furnace. It is wise to leave these tasks to the experts who know how to safely handle heating equipment and work with natural gas.

However, there are some gas furnace maintenance tips that you can do on your own. The following is a list of basic and safe furnace DIY tips you can use at home:

  • Perform a visual inspection. Look at the exterior of your furnace, checking for black soot, corrosion or leakage, which can be signs of major problems.
  • Check the pilot light. If the pilot light is not burning, follow the instructions in your furnace manual to relight it. If it still does not ignite, call a professional for assistance.
  • Check the burner flames. Visually examine the flames inside your furnace, which should be steady and blue in colour. If you see yellow flames, this could indicate that the burners are dirty. Call a professional for assistance.
  • Clean the flame sensor. Over time, residue can build up on the flame sensor, which can cause your furnace to shut off and on repeatedly. Use a piece of light grit sandpaper or steel wool to clean the sensor.
  • Check your thermostat. If you find that the indoor temperature is not quite comfortable, there may be an issue with your thermostat. Test it by raising and lowering the temperature a few degrees and see how your furnace adjusts. The thermostat may need replacement if there is no response.
  • Repair the ductwork. If you notice any air leaking from connections in your ductwork, repair them with foil tape. For larger holes, you may need the help of an expert to patch or replace sections of ductwork.
  • Replace your air filter. Your gas furnace’s air filter should be replaced at the beginning of the heating season, and on a monthly basis throughout periods of peak usage. A clean filter is essential for proper airflow and healthy, clean air.
  • Check for gas leaks. If you notice any natural gas smells near your furnace, always call your local gas company immediately to shut off the gas safely.

Not sure if you need an expert to handle your gas furnace maintenance? We’d be happy to help! Contact Evam Canada today for all your furnace maintenance and repair needs in Mississauga and beyond. Schedule your service now by calling us at 1-905-624-5544 or contact us online.

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Furnace Troubleshooting: No Heat!

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Finding that your furnace is failing to produce warm air is one of the biggest issues home owners can encounter when it comes to their HVAC system. Your furnace may be running, but blows cold air instead of hot. Or, your furnace may not even turn on at all.

In either case, furnace troubleshooting no heat-related problems is something you’ll want to get fixed fast, especially during the colder months of the year. Read on for our tips on diagnosing and resolving your furnace troubleshooting “no heat” issue:

Furnace Troubleshooting: No Heat

Is your furnace running, but simply not heating? If you find that cold air is coming from your registers instead of warm, your furnace is likely just recirculating the air within your home without heating it up first. Run through the following checklist first to see if any of these problems are the culprit:

  • Is your thermostat set to heating? Try raising the temperature a few degrees and see if the furnace starts blowing warm air.
  • Are your registers open? Make sure they are open and not blocked by furniture.
  • Is the breaker that controls your furnace tripped? If so, reset the breaker.
  • Is your furnace filter dirty? Clean or replace the air filter.
  • Is the pilot light out? Re-light it if you are comfortable doing so. If not, call your local HVAC company for help.

Once you’ve double-checked all of these potential issues and ruled each of them out, it’s likely time to call in a professional. Further fixes and repairs can be dangerous and should only be performed by an experienced HVAC technician.

Furnace Troubleshooting: Furnace Won’t Turn On

You might find that not only is your furnace not heating, it is not turning on at all. If this is the case, start by making sure the furnace is set to “ON” and its breaker is not tripped. You’ll also want to check that the condensate pan is not full, and that the furnace’s air filter is clean – both of these issues may result in your furnace not turning on. If after checking all of these areas your furnace is still not turning on and blowing hot air, turn to a professional for assistance with troubleshooting.

If you still haven’t resolved the problem with your furnace, remember that your local Mississauga furnace troubleshooting experts are here to help. Evam Canada’s trained furnace repair specialists have experience with all makes and models, and will fix your heating problem so you can enjoy a warm and cozy home.

For a service or repair appointment, call us today at 905-624-5544.

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7 Furnace Maintenance Tasks You Can Do Right Now

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Furnace maintenance is an important part of prolonging the life of your HVAC equipment. During the heating season, your furnace works hard to keep your home a comfortable temperature, delivering warm air to every room of your house. But if it keeps working hard with no maintenance, you could encounter big trouble.

No homeowner likes discovering that their furnace has stopped working. That’s why you should regularly perform simple DIY furnace maintenance tasks to prevent a major breakdown when you least expect it. We’ve assembled this list of quick tips that you can do in just a few minutes to keep your furnace up and running:

  1. Change the Furnace Filter
    After months of use, your furnace filter can become extremely clogged and full of dust that prevents proper airflow. Poor airflow reduces the efficiency of your furnace and can even cause the heat exchanger to overheat. Change your furnace filter monthly when your furnace is in use for maximum efficiency.
  2. Vacuum the Interior of the Furnace
    Open the front panel of your furnace and carefully use a vacuum with a hose attachment to clean all dust and debris from the gas burners and crevices within the interior of your equipment.
  3. Inspect the Fan Belt
    Over time, your furnace’s fan belt can deteriorate or become loose. The fan belt is an important component, which drives the blower. All furnace maintenance checklists should include an inspection of the fan belt for cracking, fraying or loosening. Replace the belt if necessary.
  4. Oil Bearings
    The motor and blower shaft bearings will need to be lubricated regularly. Remove the oil caps and apply a few drops of machine oil to the bearings and motor without over-lubricating. Don’t forget to replace the caps!
  5. Check the Outside Exhaust Vent
    Your furnace’s exhaust vent carries harmful carbon monoxide outdoors. Ensure that there is no debris, snow or ice blocking the vent. A blockage can cause a furnace failure and can be hazardous to your health.
  6. Look for Leaks
    A furnace leak can be incredibly dangerous and requires expert repair. Examine the exhaust flue inside your furnace, checking for small holes that could potentially leak carbon monoxide. While small holes can sometimes be repaired with foil tape, keep in mind that this is only a temporary fix.
  7. Clean Floor Vents
    Floor vents often gather dust and debris. Make a point to examine each floor register throughout your home and vacuum out any gunk. Make sure all vents are clear and open to ensure consistent airflow throughout your home.

Need expert help with furnace maintenance? The heating technicians at Evam Canada can ensure your furnace is kept clean and works efficiently all season long. Contact us online or call us at 1-905-624-5544 to book your furnace maintenance appointment today!


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6 Furnace Cleaning Tips

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An often overlooked part of home maintenance is furnace cleaning, but avoiding it can have a major impact on the cleanliness and overall health of your home. A clean furnace means cleaner air for you and your family. Between regular furnace maintenance appointments, we recommend you keep your own cleaning schedule for maximum furnace efficiency.

The following furnace cleaning tips will ensure your heating equipment runs properly, efficiently, and can deliver healthy air throughout your house. With a cleaner furnace, you’ll be saving money and increasing your comfort level.

  1. Cleaning the Filter
    The easiest task on our furnace cleaning tips list is to replace or clean your furnace filter. You should always replace your filter at the beginning of the heating season and about once a month during peak use. Your clogged filter should be replaced with a brand new filter of the same size and type.
  2. Clean Around the Furnace
    Furniture, boxes and other objects placed close to your furnace can cause its efficiency to suffer. Items placed too close to your heating equipment impact its breathing room, and could result in overheating. Use this as an opportunity to tidy up around your furnace.
  3. Clean the Vents
    Debris and dust can also form in the vents on the front panel of your furnace. Blocked air flow can cause your furnace to overheat and work less efficiently. Clear any blockages here with a vacuum. It is also worth vacuuming the air vents throughout your home to be sure they are all free of dust.
  4. Clean the Outside
    Next, clean the exterior of your furnace and related equipment. Use a duster to remove cobwebs, dust and other debris from the outside of your furnace. Lingering dust and residue on the outside of your furnace can cause an unpleasant “burning” smell when your furnace heats up for the first time.
  5. Clean the Blower
    Before attempting this important cleaning tip, shut off your furnace. This is essential for your safety. Open up the front panel of your furnace and carefully vacuum out any debris and dust that has accumulated around the blower. Be especially careful around any electronic components to avoid damage that could result in a short circuit.
  6. Duct Cleaning
    As part of your furnace cleaning, it’s important to consider the cleanliness of your ductwork. If it’s been a while since your ducts were cleaned, contact a local reputable duct cleaning service to perform this maintenance for you.

At Evam Canada, we suggest that you schedule regular furnace maintenance and repair to keep your heating equipment in top shape. Furnace cleaning is easy when an expert technician takes care of the bigger tasks for you!

Call us today at 1-905-624-5544 to book your maintenance appointment and get your furnace working efficiently again.

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What to Do if Your Furnace Blower Motor is Making Noise

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Strange noises coming from your HVAC system are never a good sign. An unusual sound can cause home owners to worry, leaving them wondering if there is something majorly wrong with their equipment. If your furnace blower motor is making noise, try not to panic. There could be several explanations for the noise, and even some you may be able to fix on your own at home.

Here, we’ll take a look at some of the common furnace blower motor noises and potential fixes to get your furnace running smoothly again:

Humming Sound

A humming sound is one of the most common blower motor noises reported by home owners. Your first step after noticing this sound should be to turn off your furnace’s motor and let it cool down. Once it is safe to touch, examine the motor and look for any obvious signs of wear or breakage. If there is no damage, try lubricating the motor and restarting the furnace to see if the noise has disappeared.

Screeching Sound

A screeching or squealing sound coming from your furnace blower motor could mean there is a bad belt or an issue with the motor bearings. Replace the belt with the correct part for your furnace if necessary (Reference your manual to be sure, or call a furnace repair specialist). You can also add lubricant to the bearings to eliminate the screeching sound.

Thumping Sound

A thumping, banging or clanking sound could be the result of a loose or broken off part in the motor or blower assembly. Should you hear one of these noises, turn off your furnace immediately. Call a professional to examine and repair or replace the broken part before you turn your furnace on again.

Loud Blower Fan

Sometimes, your furnace blower motor is just simply too loud and becomes a nuisance. If this is the case, you may have issues with your ductwork, or might need to reduce the fan speed of your furnace. In either case, it’s best to have a pro take a look at your system and determine if there is a way to reduce the noise it makes without decreasing efficiency.

Still find your furnace blower motor making noise? Call Evam Canada now for emergency furnace repair at 905-624-5544. Our experienced HVAC technicians are available to diagnose and repair the cause of the noise and ensure your equipment is operating safely.

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