Why Does A Gas Furnace Stop Working?

As the temperatures drop, it's time to start thinking about how to keep your home warm and cozy during the colder months. If you have a gas furnace, you may have experienced a situation where it suddenly stops working. This can be inconvenient, especially on a cold winter day.
So why exactly does a gas furnace stop working? Let's explore the common causes and solutions to this problem so you can be prepared for gas furnace repair or new furnace installation in case it occurs.

Pilot Light Issues

Another common reason a gas furnace stops working is an issue with the pilot light. The pilot light is responsible for igniting the gas that heats your home. If it goes out or becomes dirty, then the furnace will not be able to produce heat.

To fix this problem, try relighting the pilot light yourself if you feel comfortable doing so. However, if you notice any unusual smells or hear strange noises from your furnace, it's best to call a furnace repair technician for help. Get the problem fixed before it gets worse and potentially dangerous.

Gas Supply Problems

If your gas furnace is not receiving enough gas, then it will not be able to produce heat. This can happen if there is a problem with the gas supply, such as a leak or an issue with the gas line.

If you suspect a problem with your gas supply, do not attempt to fix it yourself. Gas leaks can be risky and should only be handled by a trained professional.

Change Your Air Filters

As mentioned earlier, changing your air filters is important for furnace maintenance. If your air filters are clogged with dirt & debris, it can restrict airflow and cause your furnace to work harder than needed. This can lead to malfunctions or breakdowns.

Check and replace your air filters regularly to ensure proper airflow and prevent potential problems with your furnace.

Lack of Maintenance

One of the main reasons why a gas furnace may stop working is due to lack of maintenance. Like any other mechanical equipment, furnaces require regular upkeep to function properly. This includes replacing air filters, cleaning dust and debris, and checking for potential issues.

If your furnace has been serviced for a while, it may need help to keep up with the demand for heat. This can lead to breakdowns or complete system failure, leading to furnace repair or installation. 

To avoid this problem, schedule annual maintenance for your furnace. Not only will this prevent unexpected breakdowns, but it can also extend the lifespan of your furnace.

Faulty furnace parts

Over time, the various components of your furnace can break down. This can include parts such as the blower motor, fan belt, or control board. When these parts malfunction or fail, it can cause your furnace to stop working.

If you suspect a problem with any of your furnace's components, it's best to call a professional HVAC technician for a thorough inspection and potential repairs.

Thermostat Malfunction

The thermostat is the control center for your furnace. If it malfunctions, your furnace will not receive the correct signals to turn on and off. This can result in your furnace not working or constantly turning on and off.

To troubleshoot this issue, replace the batteries in your thermostat and adjust the temperature settings. If that doesn't work, it may be time to call professionals at MileHi HVAC for further assistance.

Issue With Your Gas Line

If none of the above solutions cause your furnace not to work, there may be an issue with your gas line. Gas lines can become damaged or clogged over time, preventing gas from reaching your furnace.

In this situation, contacting a professional HVAC technician is important. They will be able to inspect and repair safely.

Flipped Circuit Breaker 

Sometimes, the solution to your furnace not working could be as simple as a flipped circuit breaker. If this is the case, flip it back and check if your furnace turns on.

If the circuit breaker continues to trip, then there may be an underlying issue with your furnace that needs to be addressed by a professional technician.

Burners Are Not Clean

When dirt and debris build up on your furnace's burners, it can prevent them from igniting properly. This will result in your furnace not producing any heat.

To fix this problem, clean your burners regularly as part of your furnace maintenance routine.

What To Do When the Gas Furnace Stops Working?

If your gas furnace has stopped working, the first step is to check if it's a simple issue you can fix yourself. If not, it's best to call a professional furnace repair technician, MileHi HVAC, for help.

In addition, make sure to schedule regular maintenance for your furnace to prevent unexpected breakdowns and extend its lifespan. And remember to keep an eye on important components such as the pilot light, thermostat, gas supply, and air filters.

By staying on top of furnace maintenance and promptly addressing any issues, you can ensure your home stays warm and comfortable all winter. So don't let a broken furnace leave you in the cold – take proactive measures to keep it running smoothly.  

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