Is your electric heater blowing cold air and leaving you shivering? An underperforming electric heater can be frustrating, especially when you need it most on chilly winter mornings. But don’t despair – in most cases, the issue can be easily fixed with some troubleshooting and maintenance.
If you’re short on time, here’s a quick answer to your question: The most common reasons an electric heater blows cold air are a tripped breaker, dirty filters, blower fan failure, faulty thermostat, or insufficient power supply.
Checking the wall thermostat, inspecting filters, and resetting the breaker can often resolve the issue.
Check Your Wall Thermostat
If your electric heater is blowing cold air, the first thing you should check is your wall thermostat. The thermostat controls the temperature and settings of your heater, so any issues with it can cause the heater to malfunction. Here are a few things to consider:
Make sure it’s set to “heat” mode and the temperature is turned up
It may seem obvious, but sometimes the thermostat can accidentally get switched to the “cool” or “off” mode, resulting in cold air blowing from the heater. Double-check that the thermostat is set to “heat” mode and that the temperature is turned up to a level that should produce warm air.
If it’s set correctly and you’re still experiencing cold air, move on to the next step.
Batteries might need replacing if it’s not responding
Many wall thermostats are battery-powered, and if the batteries are low or dead, the thermostat may not be able to communicate properly with the heater. Check the thermostat’s display for any low battery indicators or replace the batteries entirely.
Sometimes, simply replacing the batteries can solve the issue and get your heater back to blowing warm air.
Ensure nothing is obstructing it or the internal thermometer
An obstructed thermostat can also cause your electric heater to blow cold air. Make sure that there are no objects blocking the thermostat, such as furniture, curtains, or decorations. Additionally, check that the internal thermometer is clean and free from any dust or debris.
A dirty thermometer can provide inaccurate readings and cause the heater to function improperly.
Remember, if these troubleshooting steps don’t solve the problem, it’s always a good idea to consult a professional technician. They have the knowledge and expertise to diagnose and fix any issues with your electric heater.
Inspect the Air Filters
Clogged air filters reduce airflow and efficiency
One of the main reasons why your electric heater might be blowing cold air is due to clogged air filters. Air filters are designed to trap dust, dirt, and other particles that can affect the performance of your heater.
Over time, these filters can become clogged, reducing the airflow and efficiency of the system.
According to a study conducted by the Department of Energy, clogged air filters can reduce the airflow by up to 25%. This means that your heater will have to work harder to produce the same amount of heat, resulting in lower efficiency and potentially cold air blowing out of the vents.
Clean or replace dirty reusable filters as needed
To fix this issue, start by checking the condition of your air filters. If you have reusable filters, remove them and give them a thorough cleaning. Use a vacuum cleaner or wash them with water and mild soap. Allow them to dry completely before reinstalling them.
If your filters are disposable, it’s recommended to replace them regularly. The frequency of replacement depends on factors such as the manufacturer’s instructions and the level of dust and pollutants in your area.
As a general rule of thumb, it’s advisable to replace disposable filters every 1 to 3 months.
Vacuum dust buildup around vents and intake areas
In addition to cleaning or replacing the air filters, it’s also important to check for dust buildup around the vents and intake areas of your electric heater. Over time, dust and debris can accumulate, blocking the airflow and causing the heater to blow cold air.
Using a vacuum cleaner with a brush attachment, carefully clean the vents and intake areas. Be sure to remove any dust or obstructions that may be interfering with the proper functioning of your heater.
Regular maintenance in this area can significantly improve the efficiency and performance of your electric heater.
Remember, proper maintenance and regular cleaning of air filters and vents are essential to keep your electric heater running efficiently and to prevent it from blowing cold air. By inspecting and taking care of these components, you can ensure that your heater provides the warmth and comfort you need during the colder months.
Reset the Circuit Breaker
If your electric heater is blowing cold air, one of the first things you should check is the circuit breaker. A tripped breaker can cut power to the heating unit, causing it to blow cold air instead of warm air.
The circuit breaker is a safety device designed to protect your electrical system from overload. When it detects an overload, it automatically shuts off power to the affected circuit.
A tripped breaker cuts power to the heating unit
When a breaker trips, it is an indication that there is an issue with the electrical system. It could be due to a short circuit, a ground fault, or simply an overload. When the breaker cuts off power to the heating unit, it prevents any potential damage or fire hazards that may occur.
However, it also means that your heater will not be able to produce warm air until the breaker is reset.
Locate the breaker box and flip the switch fully off and on
To reset the circuit breaker, you will need to locate the breaker box in your home. The breaker box is usually located in the basement, utility room, or garage. Once you have found the breaker box, open the door and locate the breaker that corresponds to your electric heater.
It is usually labeled and may be marked as “heater” or “HVAC.”
Once you have identified the correct breaker, flip the switch fully off and then back on. This will reset the breaker and restore power to the heating unit. It’s important to flip the switch all the way off before turning it back on to ensure a complete reset.
If it trips again, call an electrician to inspect
If the circuit breaker trips again immediately after being reset, it is a sign of a more serious electrical issue. In this case, it is best to call a licensed electrician to inspect your electrical system.
They will be able to identify and fix any underlying problems that are causing the breaker to trip repeatedly. Trying to fix the issue yourself without proper knowledge and experience can be dangerous, so it’s always best to leave it to the professionals.
Remember, if your electric heater is blowing cold air, resetting the circuit breaker is a simple troubleshooting step that you can try yourself. However, if the problem persists, it’s important to seek professional help to avoid any potential hazards.
Check the Blower Fan
If your electric heater is blowing cold air, one possible reason could be an issue with the blower fan. The blower fan is responsible for circulating the heated air throughout your home. If it fails to function properly, the heated air may not reach the desired areas, leaving you feeling chilly.
Fan failure prevents heated air from circulating
A common reason for the blower fan to stop working is a faulty motor. Over time, the motor may become worn out or burnt out, leading to a lack of airflow. Another possibility is that the fan belt may have slipped or broken.
In either case, the blower fan will not be able to push the warm air into your living space.
Pro Tip: If you suspect a problem with the blower fan, try adjusting the thermostat to a higher temperature and listen for any sounds coming from the heater. If you don’t hear the familiar hum of the fan, it’s likely that there is an issue with the blower.
Inspect for debris, damage, or burnt out motor
Before calling a professional, you can inspect the blower fan for any visible signs of damage or debris. Start by turning off the heater and accessing the blower compartment. Look for any loose wires, broken fan blades, or excessive dirt and debris that could be obstructing the fan’s movement.
Additionally, check the motor for any signs of burning or overheating.
Pro Tip: Use caution when inspecting the blower fan and make sure the heater is completely turned off and disconnected from its power source to avoid any potential accidents.
Hire an HVAC technician for fan repairs or replacement
If you are unable to identify the issue or if you are uncomfortable with performing repairs yourself, it is best to hire a professional HVAC technician. They have the expertise and knowledge to diagnose the problem accurately and provide the necessary repairs or replacements.
Attempting to fix the blower fan without proper training can lead to further damage or even injury.
Pro Tip: When hiring an HVAC technician, make sure to choose a reputable and licensed professional. You can ask for recommendations from friends or family, or check online review websites for reliable heating and cooling service providers in your area.
Websites like Angie’s List or HomeAdvisor can provide valuable insights and customer reviews to help you make an informed decision.
Test the Power Supply
If you’re experiencing your electric heater blowing cold air, one of the first things you should check is the power supply. Insufficient voltage can impair the performance of your heater and cause it to blow cold air instead of warm air.
Insufficient voltage can impair heater performance
Electric heaters require a certain amount of voltage to function properly and produce warm air. If the voltage is too low, it can cause the heating elements in the heater to not heat up enough, resulting in cold air being blown out.
This can be caused by various factors such as power fluctuations or an overloaded circuit.
Use a multimeter to check voltage at the power inlet
To test the voltage at the power inlet, you can use a multimeter. Set the multimeter to the AC voltage setting and then insert the probes into the power inlet. The multimeter will display the voltage reading, which should ideally match the manufacturer’s specifications for your heater.
Pro tip: If you’re unsure how to use a multimeter or don’t have one, it’s best to call a professional electrician to perform the voltage test for you.
Call an electrician if voltage is lower than manufacturer specs
If the voltage reading is lower than the manufacturer’s specifications, it’s recommended to call an electrician to inspect your electrical system. The electrician will be able to diagnose the issue and make any necessary repairs or adjustments to ensure that your heater is receiving the correct voltage.
Remember, working with electricity can be dangerous, so it’s always best to leave any electrical repairs or troubleshooting to the professionals. They have the knowledge and expertise to handle such tasks safely and efficiently.
Inspect the Heating Elements
One possible reason why your electric heater is blowing cold air is because the heating elements may be damaged or burnt out. Heating coils are responsible for generating heat in an electric heater. If these coils are damaged or burnt out, they will not be able to warm up properly, resulting in cold air being blown out of the heater.
Damaged or burnt out heating coils cannot warm properly
Over time, the heating coils in your electric heater can become damaged or burnt out due to wear and tear. This can happen if the heater is used frequently or if it is not properly maintained. When the coils are damaged, they cannot generate enough heat to warm the air passing through the heater, causing it to blow out cold air instead.
Have an HVAC pro examine internal elements
If you suspect that the heating coils in your electric heater are damaged or burnt out, it is recommended to have an HVAC professional examine the internal elements of the heater. They have the knowledge and expertise to identify any issues and determine the best course of action to fix the problem.
May require replacement of coils or nichrome wire
If it is confirmed that the heating coils are indeed damaged or burnt out, it may be necessary to replace them. In some cases, the nichrome wire, which is used to heat the coils, may also need to be replaced.
An HVAC professional will be able to guide you on the best options for replacement and ensure that your electric heater is working efficiently once again.
Consider a Thermostat Upgrade
If your electric heater is blowing cold air, one possible reason could be an outdated thermostat. Old thermostats may not regulate temperature accurately, leading to inconsistent heating in your home. This can be especially frustrating during the colder months when you rely on your heater to keep you warm and comfortable.
Old thermostats may not regulate temperature accurately
Over time, thermostats can become less accurate due to wear and tear. This can result in your electric heater blowing cold air instead of warm air. If you suspect that your thermostat is the culprit, it may be time to consider upgrading to a new one.
Did you know? According to a study conducted by the U.S. Department of Energy, upgrading to a programmable thermostat can save homeowners up to 10% on heating and cooling costs each year. That’s a significant amount of money that can be put towards other expenses!
New programmable models provide better efficiency
New programmable thermostats offer a range of benefits compared to their older counterparts. These models allow you to set different temperature settings for different times of the day, allowing for better energy efficiency.
For example, you can program your thermostat to lower the temperature while you’re away at work and raise it just before you come home, ensuring a comfortable environment without wasting energy.
Additionally, some programmable thermostats can be controlled remotely through a smartphone app, giving you even more control over your heating system. This can be especially convenient if you’re away from home and want to adjust the temperature before you arrive.
Hire an HVAC technician for the best thermostat installation
While it is possible to install a thermostat yourself, it is recommended to hire a professional HVAC technician for the best results. They have the knowledge and experience to properly install and calibrate the thermostat, ensuring it works efficiently and accurately.
When hiring an HVAC technician, be sure to choose someone who is licensed and insured. You can ask for recommendations from friends or family, or use online resources such as Angie’s List or HomeAdvisor to find reputable technicians in your area.
Improve Insulation Around Heater
One of the possible reasons why your electric heater is blowing cold air is due to a lack of insulation around it. Insulation plays a crucial role in retaining heat and preventing heat loss. Without proper insulation, the heat produced by the heater can escape, resulting in cold air being blown out instead.
Lack of insulation results in heat loss
If your heater is not adequately insulated, heat can escape through the walls, floors, and ceilings surrounding it. This can be especially problematic if your heater is located in a poorly insulated room or in an area with drafty windows or doors.
The lack of insulation allows cold air to seep in, making it difficult for the heater to maintain a comfortable temperature.
To address this issue, consider improving the insulation in your home. This can involve adding insulation to the walls, floors, and ceilings, especially in the vicinity of the heater. Insulation materials such as fiberglass, foam, or cellulose can help trap the heat, ensuring that it stays inside the room and doesn’t escape through the walls.
Add insulation wrap/tape to exposed ductwork
In addition to insulating the surrounding areas, it’s crucial to pay attention to the ductwork connected to your electric heater. Exposed ducts can also contribute to heat loss, as the warm air flowing through them can cool down before reaching the desired areas of your home.
To prevent this from happening, consider adding insulation wrap or tape to the exposed ductwork. This will help maintain the temperature of the air as it travels through the ducts, ensuring that it reaches its destination without losing heat along the way.
Weatherstrip windows and doors to contain warmth
Another step you can take to improve insulation around your electric heater is to weatherstrip your windows and doors. Gaps and cracks around these openings can allow cold air to enter and warm air to escape, making it harder for your heater to effectively warm up the room.
Use weatherstripping materials such as adhesive strips or door sweeps to seal any gaps around windows and doors. This will help contain the warmth inside the room, allowing your heater to work more efficiently and prevent cold air from being blown out.
Remember, improving insulation around your electric heater is essential for maximizing its effectiveness and preventing cold air from being blown out. By insulating the surrounding areas, adding insulation to the ductwork, and weatherstripping windows and doors, you can create a more comfortable and energy-efficient environment in your home.
Supplement with a Space Heater
If your electric heater is blowing cold air and you need a quick fix to stay warm, a space heater can be a great supplement. Portable models provide extra heating power and can be moved around easily to warm up specific areas of your home.
They come in various sizes and designs, so you can choose one that best fits your needs and preferences.
Use temporarily until central heater can be repaired
Using a space heater can be a temporary solution until you can get your central heater repaired. It can help maintain a comfortable temperature in your home while you wait for the necessary repairs. However, it’s important to keep in mind that relying solely on a space heater for a long period of time may not be energy-efficient or cost-effective in the long run.
Take safety precautions like auto shut-off features
When using a space heater, it’s crucial to prioritize safety. Look for models that have built-in safety features, such as auto shut-off capabilities in case the heater tips over or overheats. This will help prevent accidents and ensure that your space heater operates safely.
Additionally, make sure to keep flammable materials away from the heater and never leave it unattended.
For more information on space heaters and their safety features, you can visit websites like Consumer Reports or Energy.gov.
Conclusion
An underperforming electric heater that’s blowing cold air can usually be fixed with some DIY troubleshooting and maintenance. Start by checking your thermostat settings, air filters, circuit breaker and blower fan function.
For internal issues like faulty heating elements, it’s best to hire an HVAC technician for repair. With some systematic checks and professional service when needed, you can get your electric heater working properly again and keep your home comfortably warm.
