Furnace Repair Hickory

Frequently Asked Questions about Furnace Repair

What causes a furnace to stop working?

There are many potential causes of furnace failure, ranging from simple issues to more complex problems. Some of the most common causes include::

• Lack of power: Check the circuit breaker to ensure the furnace is receiving power. Make sure the power switch near the furnace is also on.
• Thermostat problems: Check that the thermostat is set correctly to 'heat' and at a temperature higher than the current room temperature. Replace batteries if the display is blank or not working. A malfunctioning thermostat requires replacement.
• Clogged air filter: A clogged air filter can restrict airflow and prevent the furnace from working efficiently.. Try replacing the filter.
• Ignition problems: The igniter or pilot light (in older furnaces) is responsible for lighting the burners. In newer furnaces, electronic ignition systems control this process and should be checked if there are problems.
• Blower motor issues: The blower motor is crucial to distributing warm air throughout your home. If the blower motor is broken, the furnace may not produce enough heat.
• Gas supply problems (for gas furnaces): Gas furnaces require both gas and electricity to function properly. Check that there are no gas leaks.
• Other component failures: Other components, such as the heat exchanger, flame sensor, control board, or limit switch, can also cause furnace malfunctions..

It is typically best to avoid trying to fix the furnace on your own unless you're a qualified HVAC professional.

How can I tell if my furnace is the correct size for my home?

A properly sized furnace is essential for optimal home comfort. An undersized furnace won't adequately heat the space. An too-large furnace will short cycle, causing wear and tear, inconsistent heating, and inflated utility bills. Signs that your furnace may not be correctly sized include::

• High Energy Bills: An oversized furnace can cause increased energy consumption.
• Inconsistent Temperatures: Noticeable temperature fluctuations throughout your home.
• Short Cycling: If your furnace turns on and off frequently, it could be an indication and wasting energy.
• Poor Air Quality: If the airflow from the vents seems weak or there are areas with inconsistent temperatures, the unit may be the wrong size.
• Excessive Noise: Oversized furnaces can make loud or unusual sounds

If you suspect your furnace is improperly sized, it's essential to consult with an HVAC professional. A Manual J load calculation can accurately determine the appropriate furnace size.. A proper sizing calculation is a worthwhile investment for optimal comfort and energy efficiency.

How do I know when it's time to replace my furnace?

Here are signs that your furnace is nearing the end of its lifespan and may need replacing::

• Age: If your furnace is 15-20 years old or older, it's likely less efficient and more prone to breakdowns.
• Frequent Repairs: Multiple repairs, especially costly ones, suggest it's more economical to invest in a new, more reliable unit..
• High Energy Bills: A noticeable increase in your heating bills might be caused by an inefficient furnace.
• Uneven Temperatures: If some rooms in your house are colder than others, it could indicate problems with your furnace or air distribution.
• Strange Noises: Banging, squealing, or rumbling noises suggest mechanical issues.
• Yellow or Flickering Burner Flame: A healthy furnace flame should be blue. A yellow or flickering flame can indicate a problem with the burners, insufficient airflow, or a dangerous carbon monoxide leak. This should be addressed right away.
• Dry or Dusty Air: An old furnace may cause dry, dusty indoor air. A new furnace with improved filtration can help alleviate this problem.

If you're experiencing any of these signs, it's advisable to consult with an HVAC professional for a furnace inspection and assessment.

What is the average lifespan of a furnace?

The average lifespan of a furnace is typically 15 to 20 years. However, this can vary depending on several factors: depends on several factors, including::

• Maintenance: Regular maintenance can help extend the lifespan of your furnace. Annual checkups and timely repairs can make your furnace more reliable.
• Usage: Frequent or continuous use puts more strain on your system.
• Quality: Well-built models are typically more durable.
• Proper Installation: Correct installation is key to longevity.

If your furnace is over 15 years old and starting to experience frequent problems, it may be time to consider replacing it.