Thinking about performing DIY HVAC repairs? Unless you’re a professional, think again. Here’s why DIY HVAC repair is best left in the hands of a licensed HVAC technician.

Risk of Danger and Injury

Without the proper skills and expertise, trying to perform a repair to any part of your HVAC system yourself can come with some big dangers. One mistake and you could end up cut, burned, broken, or electrocuted. And when trying to repair your heat source, the risk of an accident is greater than other appliances, and improperly repairing it can result in a fire.

The biggest risk of danger when doing a DIY HVAC repair? Carbon monoxide. If you attempt to perform maintenance or repair on your heating unit without the proper skills and expertise required, you could be faced with a carbon monoxide leak. This could lead to carbon monoxide poisoning and can cause dizziness, nausea, vomiting, confusion, loss of consciousness, and death.

You may be confident in your safety skills, but unless you have the qualifications and training like an HVAC professional does, it’s best to leave the maintenance and repairs to them. This way, you can ensure your, your home, and your family’s safety.

Worsened Damages

Another problem with DIY repairs is instead of fixing the issue, you may end up causing further damage to your appliance. And since you don’t have the qualifications of a licensed HVAC professional, you may not even realize the damage you’ve done. When the issue reveals itself, it could end up costing you more money and stress than it would’ve just hiring a professional in the first place.


You may think your handy tool kit will do the job for any DIY HVAC repairs. However, the right tools for the job will depend on your specific HVAC problem, and HVAC repair tools aren’t the cheapest. Buying these expensive tools isn’t a great investment because you’ll only need them occasionally.

Not to mention if you buy the tools, that doesn’t mean you know how to use them properly. Without properly knowing your system and the reason why it needs repairs, you could fix the symptoms of the problem, but not the cause. Or, as we mentioned above, you could worsen the damage and not even know. All this is to say – this can get expensive very quickly.

An HVAC professional not only has the necessary tools but the expertise to know what’s going on and fix it correctly. So if you want to go with a more cost-effective route, hire a well-equipped professional to handle your heater or AC repair.

Voided Warranty

Most manufacturer warranties state that only a licensed technician can perform work on your unit. So if you, as an unlicensed person, attempt repairs on the furnace, you can void that warranty. That means if those repairs go wrong, you will be liable for those losses. And repairing or recovering those damages can be a big dent in your finances.

Specific warranties vary by manufacturer and individual product, but this clause is pretty common. This is not only a way for the company to protect itself but also for you and your safety. So if you want to keep your warranty intact and save thousands of dollars, you’re better off avoiding DIY projects on your HVAC system.


If none of the other points have convinced you, let us pose this question: how important is your free time? Do you enjoy using it to relax, spend time with family and friends, and pursue fun hobbies?

Now the last question: do you really want to be spending your precious free time tinkering with your HVAC system? You may not know exactly what’s wrong and could spend hours trying to figure it out before you even start repairing. If your heater isn’t working and it’s a cold day, you and your family will have to bear the discomfort while you attempt to fix the issue. Repairing your system yourself can be a major inconvenience to you and your family. Instead, choose convenience and hire an HVAC technician. They’ll fix your problem quickly and reliably so you can stay comfortable and enjoy your free time to the fullest.

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If there’s a problem with any part of your HVAC system, call in the people who know what they’re doing – Comfort World Air Conditioning & Heating.

Avoid the Risky Business – Call in Comfort World Air Conditioning & Heating

If there’s a problem with any part of your HVAC system, call in the people who know what they’re doing. Maintenance, repairs, replacements – Comfort World Air Conditioning and Heating can do it all! We will work quickly and efficiently to solve the problem so you stay comfortable. We’ve been bringing comfort to the valley for over 30 years, so you can count on us to get the job done right. Our highly trained technicians in Scottsdale, Arizona, want to bring a little more comfort to your world!