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Your Furnace Blows Cold Air—Why Does It Happen?

Dec 17

Nothing can be more frustrating than having a furnace that gives off cold air. It means that your furnace is working, but you're still freezing.

Fixing a furnace that blows cold air takes a lot of work and the right tools. If you're looking for the best results, then schedule your residential heating repair in Llano, CA with the pros.

Here are six common reasons why your furnace might be giving off cold air:

Wrong Fan Setting

One of the most common reasons your furnace is blowing cold air has nothing to do with the unit itself. In some cases, the problem might be on the fan.

Your fan should be on the auto mode. If not, then you shouldn’t wonder why you’re feeling a bit uncomfortable.

Make sure to check the fan setting regularly and see if it is set right. The furnace itself might be the culprit if your system still blows cold air despite the right fan setting. Bring in the pros for a thorough inspection and residential heating repair in Llano, CA.

Filthy Furnace Filters

If you haven't replaced your furnace filter recently, that might be the reason why your furnace is blowing cold air. Dirty filters can restrict airflow and reduce heat output produced by your unit.

Always change or clean your furnace filter at least every three months or whenever possible for maximum efficiency.

Doing so also helps reduce the strain of your system, resulting in lower heating costs and more comfortable indoor space.

Your Furnace Needs To Be Reset

If you've just installed a new thermostat or moved to a new apartment, it might be the case that your furnace just needs to be reset. To reset it, just hit the On/Off switch button until you hear two quick beeps. But if resetting the unit doesn't help at all, then maybe it's time for professional check and residential heating repair in Llano, CA.

Clogged Heat Exchangers

If your furnace has started blowing cold air while it's running, then there's something wrong with the heat exchanger. This part of the furnace is designed to stop working if any problems that could cause carbon monoxide leaks to develop.

But this does mean that when it breaks down prematurely, your furnace will start blowing cold air. Call the experts for residential heating repair in Llano, CA.

The Thermostat Isn't Working

If none of these other reasons apply to you and your furnace still isn't heating things up like usual, chances are your thermostat might be broken or faulty.

If the thermostat is defective, it will cause your furnace to cycle on and off constantly. Check if it needs a battery replacement or you need to replace the entire device.

Outdated Furnace

Check the age of your furnace, as it might be outdated and not working as efficiently as it used to.

Furnaces are designed to last long. But you'll probably need to get a new one at some point anyway when it starts acting up. Trying to fix an old furnace might just cost you more money in the long run than having replaced it with a more efficient and new unit.

Also, old systems tend to consume more energy, resulting in higher heating bills throughout the winter.

Schedule Your Residential Heating Repair in Llano, CA


You might need to call a professional furnace company to inspect and repair your heating system at home. You can find quality residential heating repair in Llano, CA at All Heart Heating & Cooling. The company has some of the finest and experienced technicians ready to solve all your heating issues.

Dial 661-310-3747 to learn more about their services, request an estimate or schedule your appointment.