Furnace Repair Gilroy

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. Here are some possible culprits:

• 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: A faulty thermostat may not be signaling the furnace to turn on. 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 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 inducer motor, capacitor, or pressure switch, might be responsible.

If you cannot identify or resolve the issue yourself, contact a qualified HVAC technician for diagnosis and repair .

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: Regular maintenance can help extend 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: 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.

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

Indicators that your furnace may need replacement include:

• Age: If your furnace is 15-20 years or older, it is likely nearing the end of its lifespan and more prone to breakdowns.
• Frequent Repairs: If your furnace requires constant attention, it may be a better financial decision 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 home or business could mean your furnace is no longer distributing heat evenly.
• Strange Noises: Listen for odd noises coming from the unit.
• Yellow Flame: A healthy furnace flame should be blue. A yellow flame suggests the presence of carbon monoxide, which is a serious safety hazard. A yellow flame requires immediate attention.
• Dry Air: If you notice excessive dryness, a new furnace could provide increased comfort.

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 a few minutes for the system to fully power down.
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 continues or if you encounter error codes, don't attempt to diagnose or repair the issue yourself.