How to Know If Your HVAC Fuse is Blown

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After visiting the AHRI directory, you’ve finally found the best system to buy. But you should expect it to serve you forever since it also has a lifespan. When your HVAC unit stops working, it may seem like there are infinite reasons behind it. But a blown fuse is a common cause and can be simple to assess.

So, how do you tell if your AC fuse is blown? To lend a helping hand, be sure to locate the fuse behind the unit’s access panel and perform a visual inspection or multimeter testing. Read on to learn how to check AC fuse to troubleshoot and solve the issue.

How to Check Fuse When Your AC Stops Working

Similar to many other fuses, an AC fuse is a safety device that blows is the unit is in danger of receiving too much power. It is responsible for absorbing this change in power and blows to prevent more serious damage to the unit. The AC fuse is typically located in the unit’s control board.

This board can often be found behind an access panel on the HVAC unit’s lower compartment. While some panels must be unscrewed to access the control board, others come with clips thar are lifted to remove the panel.

What Happens When the AC Fuse is blown?

On some HVAC units, when the AC fuse is blown, the blower will blow continuously regardless of your home’s temperature and thermostat setting. But on most HVAC units, all function will cease when the fuse is blown. That’s because all the thermostat’s low-level voltage controls are processed through the fuse. It is impossible to process these commands if the fuse blows and the unit will stop running.

Although an AC fuse can blow if it malfunctions, a blown fuse can also signal a larger problem with your unit. Even if you know how to check AC fuse, you’ll likely need a professional air conditioning repair if it blows again. That way, you can ensure your HVAC units operate efficiently at all times.

Joel Guerrero
Joel Guerrero
Joel Guerrero was born December 11, 1991, is an American progressive technology business journalist and co-founder of rearranging. He became a tributary author to The NY Times Opinion Section in 2018. antecedently she wrote for The Wall Street Journal, serving as co-executive editor of All Things Digital. Joel visited Princeton Day college from 2009 to 2013. He wrote for The vine, Georgetown's newspaper, however later left The vine and wrote for The Georgetown Voice, the university's news magazine. Email: joel@topdailyplanner.com

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