It is recommended to keep your furnace in good working condition with regular maintenance. It helps the system to function efficiently without causing issues down the road. However, if your furnace faces problems like blowing cold air, call for a heating service in Sacramento, CA to address the problem.

Reasons why the furnace might be blowing cold air and solutions for the issue

The thermostat is set incorrectly

You must ensure that your thermostat is correctly set when your furnace blows cold air. You might sometimes forget the settings when switching from AC in the summer to heating in the fall and winter. 

Solution: Set your thermostat to heat mode instead of cool mode, and turn the fan to auto rather than on. If the fan is turned on, it will blow hot air even when the furnace isn’t producing any heat.

The furnace requires more time to heat up

You may need to allow the furnace to heat up for longer if this is your first time. The heating and air systems can take a while to heat up. 

Solution: Wait for 10-15 minutes. Contact a professional for heating repair in Sacramento, CA, if your air feels cold after waiting for 10-15 minutes.

The pilot light is out

Your furnace may have a pilot lamp that constantly lights if it is older than 20 years. It allows the larger burner to ignite when needed. This pilot light could have been out because of a dirty valve or a strong draft.

Solution: Contact a furnace technician to determine if the pilot light is still not working after relighting the appliance.

The gas supply is off or weak

Gas furnaces may not receive a constant supply of gas to heat-generating burners. The furnace may not be able to produce heat if the gas supply is low or insufficient. However, it can still run the blower and produce cold air.

Solution: If the problem persists, you’ll need to consult your gas company or hire a professional.

Leaky or damaged air ducts.

The furnace will send hot air through your house using a network of ducts that run through your walls. According to specialists for heating service in Sacramento, CA, if your furnace produces hot air, but your vents don’t seem to let it out, your ducts might have a significant leak.

Solution: Damaged ductwork may lead to problems with your AC. You must have the system repaired as soon as possible. Professionals have the tools to help you find cracks or holes in your ducts.

A dirty or clogged filter

A clogged or dirty filter could cause your furnace to blow cold air. If your furnace stops blowing air across heat exchanger coils, it will most likely overheat and shut off, leaving you with cold air.

Solution: A homeowner can easily remove and clean the filter or replace it. There are many affordable options for air filters available. However, if you have any questions, contact your furnace company or call a local HVAC technician.

Dirty flame sensor

If the flame sensor gets dirty, your furnace will switch on and begin heating but then turn cold soon.

Solution: Cleaning the sensor is not too difficult if you are familiar with furnace components. If you aren’t entirely comfortable doing it yourself, you may always ask a specialist to handle it.

Sun Air Heating, Cooling, & Electrical experts can quickly analyze and resolve the issue to warm your home. Call us now at (916) 888-2020 or drop us a mail to make an appointment for heating and air in Sacramento. Our licensed technicians can catch many issues early and repair parts quickly.