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What To Do If Your HVAC System Has Been Flooded?

If your home has been affected by a flood, the first order of business is to make sure that you and your family are safe. Once you have taken care of any necessary emergency steps, it’s time to assess the damage to your home, especially your HVAC system.

flooded hvac system

There’s never a good time for your HVAC system to break down, but it’s especially frustrating if it happens during a flood. Here are some tips on what to do if your HVAC system has been flooded.

Shut Off The Power to Your HVAC System

If your home was flooded, it’s important to take some safety precautions before turning on your air conditioning unit. If the power is still on, be sure to shut off the power to your HVAC system at the breaker box. This will help protect the unit from further damage. In many cases, flood damage can be repaired, but it’s important to take action quickly so that further damage isn’t done.


Disconnect The System from Its Electrical Supply

The next thing to do when your HVAC system has been flooded is to disconnect it from its electrical supply. This will help protect the unit against any potential damage caused by water infiltration. In addition, be sure to check the unit for any signs of damage and make necessary repairs before turning it back on.


Allow Your HVAC Unit to Dry Up

If your home or office has been flooded, it’s important to allow your HVAC unit to dry up completely. If the HVAC is still wet, it can cause problems like rust and mould. In extreme cases, it can even start a fire. So please take the time to let your HVAC unit dry out before using it again.


Clean Up Any Water or Mud that May Have Been Spilled

Mud and water can cause extensive damage to an HVAC unit if not cleaned up properly. Therefore, if you have a flooded HVAC unit, it is important to clean up any water or mud that may have been spilled. This will help avoid further damage and will ensure that your AC unit is working properly.


Contact A Professional to Come and Inspect The System for Damage

If your HVAC system has been flooded, it’s important to have it inspected by a professional before trying to use it again. Many things can go wrong with an HVAC system when it’s flooded. Below are some examples of it.



Duct insulation that has been flooded can be contaminated and become a breeding ground for microorganisms, which can cause health problems. That being said, flooded ductworks are not suitable for your health.


Gas Furnaces

Once floodwater enters an HVAC unit’s gas furnace, it’ll cause corrosion build up. This can lead to the unit’s decreased efficiency and safety issues. 


Air Conditioning and Heat Pump System

When an air conditioning and heat pump system gets submerged in water for a lengthy time, its electrical components will experience shortages. This makes your HVAC system unsafe to use. The floodwater may have caused various damages that you can’t see, and using the AC could make the problem worse. 

Only a licensed HVAC technician can provide you with the right assessment of your HVAC system. They have proper tools and skills that can tell whether your system can still be repaired or a replacement will be needed. Contact a local HVAC company to help in checking your flooded HVAC system for possible solutions.


Let Wahoo Air Conditioning Help You


To ensure your family and your home’s safety, we best recommend leaving your HVAC system turned off until your HVAC specialist performed a full inspection on it. Let Wahoo Air Conditioning help you in assessing your HVAC system after it’s been flooded. Our team consists of licensed HVAC technicians that can provide you with the right solution for your system.


You may reach us via call or email to request a quote.