Furnace Repair Fremont

Frequently Asked Questions about Furnace Repair

What causes a furnace to stop working?

There are many potential causes of furnace failure, from minor issues to major breakdowns. Here are some possible culprits:

• Lack of power: Check the circuit breaker to ensure the furnace is receiving power. A tripped breaker is a common and easily resolved problem.
• 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. A faulty igniter or pilot light may need to be cleaned or replaced..
• Blower motor issues: The blower motor circulates air through the furnace and ductwork. A faulty motor can prevent air from circulating properly..
• Gas supply problems (for gas furnaces): Make sure the gas supply valve to the furnace is turned on.. 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.

What is the average lifespan of a furnace?

The average lifespan of a furnace is around 15-20 years. How long your particular furnace will last is influenced by:

• Maintenance: Preventative maintenance significantly impacts the lifespan of your furnace. A preventative maintenance plan can make your furnace more reliable.
• Usage: Frequent or continuous use puts more strain on your system.
• Quality: Higher-quality furnaces from reputable brands tend to last longer.
• Proper Installation: Correct installation is crucial for optimal performance and longevity..

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

What are the signs that my furnace needs to be replaced?

If your furnace is exhibiting any of the following signs, it may be time for a replacement:

• Age: If your furnace is 15-20 years or older, it is likely less efficient and more prone to breakdowns.
• Frequent Repairs: If your furnace requires frequent and costly repairs, it may be more economical to replace it than to keep repairing it.
• Increasing Energy Bills: A significant increase in your heating bills might suggest that your furnace is losing efficiency.
• Inconsistent Heating: Uneven temperatures throughout your house could mean your furnace is no longer distributing heat evenly.
• Strange Noises: Unusual sounds coming from your furnace, such as banging, squealing, or rumbling, can signal mechanical problems.
• Yellow Flame: A healthy furnace flame should be blue. A yellow flame can indicate a problem with the burners or venting. A yellow flame requires immediate attention.
• Dry Air: While not a direct indicator of malfunction, older furnaces can make your indoor air very dry.

If you notice one or more of these warning signs, have a qualified HVAC technician inspect your furnace.

How do I reset my furnace?

If your furnace isn't working correctly, a simple reset can sometimes resolve the issue. Here's how to reset most furnaces:

1. Turn off the furnace: Set the thermostat to the 'off' position.
2. Turn off the power: Locate the circuit breaker for your furnace and switch it off.
3. Wait: Wait at least 30 seconds, though longer is sometimes recommended for the system to reset.
4. Turn the power back on: Flip the circuit breaker back to the 'on' position.
5. Turn on the furnace: Turn the thermostat back on and set it to your desired temperature.

If the problem persists or if you encounter error codes, it's best to call a qualified HVAC technician for diagnosis and repair..