5 Key HVAC Diagnosis Tips to Help You Find the Problem

Did you know the first modern air conditioner was invented way back in 1902? It’s fair to say the market has massively expanded since then, and you can find these popular systems in many US homes. However, sometimes things can go wrong, and you may be tempted to try and solve the problem yourself before calling in the experts.

But, what should you look for when performing an HVAC diagnosis? If you’re not a professional HVAC technician, it can be difficult to know where to start. While sometimes the only answer is to call a qualified engineer, there are a few helpful suggestions you can use to identify some typical faults.

Let’s dive in and learn more about some common HVAC issues.


5 Key HVAC Diagnosis Tips to Help You Find the Problem


1. Check the Power Supply

This may seem like an obvious suggestion, but you may not notice if a breaker has flipped or blown a fuse and left your heating and cooling system without power. If you’re unsure, flip your breaker off for a short period and then turn it back on and see if that resolves the problem.

2. Look for Obstructions

If you notice certain areas of your home are too cold or too hot, a vent obstruction could be the cause of your AC trouble. Ensure your vents are open, and there are no objects or a build-up of dirt that could block the flow of air.

3. Replace the Filter

A common reason for HVAC issues is an old or dirty filter. This can result in your air appearing to be humid or dusty, and you may also notice your HVAC system is no longer efficient. If you are hiring an HVAC technician to replace your filter, you could ask them to service the rest of the system at the same time.

4. Check the Wiring

You could experience heater trouble if any wires have become damaged or disconnected, especially if you have outside AC units. However, when checking wires, it’s essential to be safe and not touch any wiring that could give you an electric shock.

5. Reset the System

You may find you have common HVAC problems that only require a simple reset of the system, and this can be a fast and easy solution. But, if this is not effective, be sure to look for a professional AC repair service that can get your system back up and running.


HVAC Diagnosis Can Be Tricky

If the issue is simple, you may be able to perform an HVAC diagnosis and repair without professional assistance. You could start by confirming the unit has an adequate power supply, and that there are no obstructions in the vents. A blocked filter could cause issues, while faulty wiring can also affect HVAC functionality.

Just remember to call in the professionals if the problem seems to be complex or could be dangerous to tackle without expert help.

If you’ve found this article helpful, be sure to check out more informative posts in our Cleaning & Maintenance category before you go.

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