Furnace Fixes: What to Do When Your Home Stays Cold
Troubleshooting Your Furnace: How to Warm Up a Cold Home
Furnace not heating home can be a frustrating issue, especially when the temperatures start to drop. If you’re dealing with a chilly house, here are quick checks to help you identify the problem:- Check if the thermostat is set to “heat.”- Ensure the furnace's power supply is turned on.- Replace any clogged air filters.- Verify that the pilot light is on or the ignition system is functioning.- Confirm the gas supply is open.
Ensuring your furnace operates efficiently through regular maintenance is crucial. A well-maintained furnace can prevent unexpected breakdowns and contribute to lower energy bills, keeping your home comfortable regardless of the weather outside. Understanding common issues like faulty thermostats, power disruptions, and clogged filters can help you address potential problems before they escalate.
I’m Allen Chenault, the founder of AC's Heating & Air. With decades of experience in the HVAC industry, I’ve seen how solving the "Furnace not heating home" issue can improve not only your comfort but also the efficiency of your heating system. Let's explore understanding how you can keep your heating system in top shape.
Furnace not heating home helpful reading:
Furnace Not Heating Home: Common Causes
When your furnace is not heating your home, it can be more than just uncomfortable—it's a signal that something needs attention. Here are the most common culprits:
Thermostat Issues
The thermostat is like the brain of your heating system. It tells your furnace when to kick on and off. If it's malfunctioning, your furnace may not get the message to heat your home. Common problems include incorrect settings (make sure it's set to "heat") or dead batteries. Sometimes, the thermostat might be in a poor location, like near a heat source, causing it to misread the room temperature.
Power Source Problems
Your furnace needs power to operate. If the power switch is off or there's a tripped circuit breaker, your furnace won't heat. Always check that the power is on and the circuit breaker is not tripped. For gas furnaces, ensure the pilot light is lit, as it indicates the furnace is receiving power.
Clogged Air Filters
A dirty air filter can block airflow, making your furnace work harder and less efficiently. When airflow is restricted, the furnace can overheat and shut down the heating element. Regularly replacing or cleaning your air filters can prevent this issue.
Pilot Light Issues
For furnaces with a pilot light, a common issue is it going out. Without it, your furnace can't ignite the gas to produce heat. In newer models, an electronic ignition system replaces the pilot light, and if this system fails, your furnace won't heat your home.
Gas Supply Problems
A furnace that runs on gas needs a consistent supply to function. Low gas pressure or a closed gas valve can prevent your furnace from heating. Make sure the gas valve is open and the supply is steady, especially during cold days when demand is high.
Understanding these common causes can help you diagnose and address issues quickly. If these checks don't solve the problem, it might be time to explore some troubleshooting steps.
Troubleshooting Steps for a Cold Home
If your furnace is not heating your home, don't worry. There are simple steps you can take to troubleshoot the issue before calling in a professional. Here's what to do:
Check the Air Filter
A clogged air filter can cause big problems. It blocks airflow, causing your furnace to work harder and maybe even overheat.
- Step 1: Turn off the furnace.
- Step 2: Locate the air filter, usually near the blower compartment.
- Step 3: Remove the filter and hold it up to the light.
- If you can't see through it, it's time to clean or replace it.
Check Thermostat Settings
Your thermostat controls your furnace. If it's not set correctly, your furnace won't heat your home.
- Step 1: Ensure it's set to "heat."
- Step 2: Raise the temperature a few degrees above the current room temperature.
- Step 3: Check the batteries and replace them if needed.
Check Power Supply
Without power, your furnace can't run. This is a common issue that is easy to overlook.
- Step 1: Verify the power switch near the furnace is in the "on" position.
- Step 2: Check your home's circuit breaker panel for tripped breakers.
- Reset any tripped breakers and see if the furnace starts.
Check the Pilot Light
If your furnace uses a pilot light, it needs to be lit for the furnace to produce heat.
- Step 1: Turn off the furnace and remove the front panel.
- Step 2: Locate the pilot light and check if it's on.
- If it's out, follow your manufacturer's instructions to relight it safely.
Check the Gas Valve
For gas furnaces, a closed gas valve means no heat.
- Step 1: Trace the gas line from the furnace to the meter.
- Step 2: Ensure the gas valve is in the "open" position (parallel to the pipe).
By following these steps, you can often solve the problem of your furnace not heating home. If these don't fix the issue, it might be time to consider some DIY solutions or call in a professional for help.
DIY Solutions for Furnace Problems
Sometimes, a little DIY can go a long way in fixing your furnace woes. Here are some solutions you can try at home before calling in the experts.
Clean Air Filters
Dirty air filters are a common culprit when your furnace is not heating home. They block airflow and make your furnace work harder than it should.
- Step 1: Turn off the furnace to ensure safety.
- Step 2: Locate the air filter, typically near the blower compartment.
- Step 3: Remove the filter and inspect it.
- If it's clogged with dust and debris, clean or replace it.
Relight the Pilot Light
For older gas furnaces, a lit pilot light is essential for operation. If it's out, your furnace won't heat up.
- Step 1: Turn off the furnace and remove the front panel.
- Step 2: Locate the pilot light assembly.
- Step 3: Follow your manufacturer's instructions to safely relight it.
Reset the Circuit Breaker
Sometimes, a tripped circuit breaker is the reason your furnace won’t turn on.
- Step 1: Go to your home's circuit breaker panel.
- Step 2: Identify the breaker for the furnace.
- Step 3: If it's tripped, flip it to the "off" position, then back to "on."
Adjust the Thermostat
A simple thermostat adjustment can sometimes solve heating issues.
- Step 1: Ensure the thermostat is set to "heat."
- Step 2: Increase the temperature setting a few degrees above room temperature.
- Step 3: Replace the batteries if needed, or check the wiring if it's not responding.
Clean the Flame Sensor
A dirty flame sensor can prevent your furnace from staying lit.
- Step 1: Turn off the power to the furnace.
- Step 2: Locate the flame sensor, usually near the burners.
- Step 3: Gently clean it with a fine-grit sandpaper or emery cloth to remove any buildup.
These DIY fixes can often get your furnace back up and running. If these steps don’t resolve the issue, it may be time to consult a professional.
When to Call a Professional
Sometimes, even the best DIY efforts can't solve your furnace not heating home issue. Here’s when it’s time to bring in the experts at AC's Heating & Air.
Persistent Issues
If your furnace keeps acting up despite your troubleshooting efforts, it’s a sign of a deeper problem. Persistent issues like inconsistent heating or frequent cycling could indicate complex mechanical failures or electrical issues that require a professional touch.
Complex Repairs
Furnaces are intricate systems with many moving parts. Complex problems, such as faulty wiring, broken blower motors, or heat exchanger issues, are best left to professionals. Attempting these repairs yourself can lead to further damage or void your warranty.
Safety Concerns
Your safety is paramount. If you smell gas, see sparks, or notice any burning odors, these are red flags that need immediate professional attention. A malfunctioning furnace can pose serious risks, including fire hazards and carbon monoxide leaks.
Trust AC's Heating & Air
In the areas of Apopka, Winter Garden, Winter Park, Orlando, Orange County, Isleworth, and Celebration, AC's Heating & Air is your go-to for reliable furnace repair and maintenance. Their experienced technicians can quickly diagnose and fix issues, ensuring your home stays warm and safe. Plus, they offer guidance on maintaining your system to prevent future problems.
When your furnace challenges go beyond basic fixes, don’t hesitate to reach out to professionals. They have the expertise and tools to get your heating system back on track, keeping your home comfortable and secure.
Frequently Asked Questions about Furnace Heating Issues
Why is my furnace on but not heating my house?
Sometimes, a furnace runs but fails to heat your home. This could be due to thermostat issues. Make sure your thermostat is set to "heat" and the temperature is set higher than the current room temperature. A malfunctioning thermostat might not send the right signals to your furnace. Check the batteries and replace them if needed.
Another common problem is ignition issues. Older furnaces with pilot lights can have the flame go out. For newer models, the ignition system could be faulty. If you suspect this, it might be time to call a professional.
Why is my furnace working but my house is cold?
If your furnace seems to be operating but your home remains cold, the issue might be dirty air filters or obstructed airflow. A clogged filter restricts airflow, causing your furnace to overheat and shut off the heating element. Check your air filter and replace it if it’s dirty.
Obstructed airflow can also be caused by blocked vents or registers. Ensure that furniture or other items are not blocking the airflow. If the problem persists, it might be time to have a professional inspect your ductwork for any obstructions.
What should I do if my furnace won't turn on?
If your furnace won’t start at all, start by checking the power source. Make sure the furnace switch is turned on. If you have an electric furnace, check the circuit breaker. Sometimes, resetting it can solve the problem.
For gas furnaces, ensure that the gas supply is on. Check that the gas valve is open and that your pilot light is lit. If you suspect a gas supply issue, it’s best to contact a professional right away, as gas leaks can be dangerous.
These steps can help troubleshoot common furnace issues. However, if problems persist, it’s wise to call in the experts at AC's Heating & Air. They can help diagnose and fix any complex issues to keep your home warm and comfortable.
Conclusion
Proper furnace maintenance is crucial for ensuring your home stays warm and cozy during the colder months. Regular upkeep not only extends the lifespan of your furnace but also helps avoid unexpected breakdowns and costly repairs. By checking and cleaning air filters, inspecting the thermostat, and ensuring the power supply is stable, you can prevent many common issues.
However, there are times when professional assistance is necessary. If you encounter persistent problems or safety concerns, it's best to reach out to experts like AC's Heating & Air. With years of experience in the HVAC industry, they offer comprehensive solutions custom to your needs. Whether it's a simple repair or a complex issue, their skilled technicians are ready to restore your system's efficiency and reliability.
For those living in Central Florida, including Apopka, Winter Park, and Orlando, contact AC's Heating & Air for all your furnace repair and maintenance needs. Their commitment to quality service ensures that you can enjoy the warmth and comfort of your home without worry. Regular maintenance and professional support are the keys to a hassle-free heating season. Stay warm and comfortable with AC's Heating & Air by your side.
