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Why Is My Furnace Not Blowing Hot Air?

You rely on your HVAC system to keep your home comfortable, but what if your furnace fails? You may not be thinking about repairing a broken furnace right now, but you don’t want to be without heat on a cold winter night. When your furnace breaks down, the most common symptom is that it blows cold air. 

When the heating system tries but fails to start, it gives up and locks out. As a result, your furnace will only blow cool air, leaving you with a cold house. Therefore, you should contact a professional for heater repair in Rockwood to get your machine checked regularly.

Reasons why your heating system is not blowing hot air

Furnaces can develop a variety of issues if they are not maintained regularly. Mentioned hereunder are some reasons why your heating unit is not blowing warm air:

Problems with the thermostat

If the furnace is blowing cold air instead of hot air, it does not imply that the heating unit is faulty. Instead, it means that the thermostat may be the cause of the problem. 

Therefore, all the troubleshooting efforts must remain focused on the thermostat, as you have the best chance of resolving the issue without calling a professional. Also, thermostat problems come in a wide variety, and so do the solutions. Hence it’s important to identify the furnace problem correctly for the best solutions. 

A dirty or clogged filter

There may be more than one user error causing cold air problems in your house. A blocked-up filter can constrain airflow to your HVAC system. 

It may limit the furnace’s capacity to produce and circulate hot air throughout the house. Some heating units even have a built-in shutoff system that activates when the filter becomes clogged, preventing an overheated burner. 

Troubleshooting the High Limit Switch

A clogged filter can even cause components of your HVAC system to fail. Your system can withstand a few rounds of overheating, but not indefinitely. Repeated overheating can cause your high-limit switch to fail. There is no need to understand the intricacies behind a high-limit switch, but it is crucial to ensure it does not fail. 

Problems with the Condensate Line

The condensate is another element of your HVAC system that requires routine maintenance. When you turn on the HVAC system during the summer season, the condensing unit drips water into the dripping pan. 

That water gets removed through piping, which ultimately makes its way outside your home, where it drains. Those lines tend to become clogged with dirt and grime if they are not maintained regularly. All you need to remember is that clean and clear condensate lines equal an efficient HVAC system. HVAC companies have specialized tools for cleaning out slimy condensate lines.

Are you looking for a reliable HVAC professional for your furnace repair in Guelph? Look no further than B.A.P Heating and Cooling Services. To book our expert and affordable HVAC services, you can call us now at (647) 250-0619 or drop us an email at sales@bapheating.ca.  


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