How Rain Can Affect Your HVAC System

How Rain Can Affect Your HVAC SystemIt’s easy to see the effects of rain on most types of electric equipment left outdoors. It’s natural be concerned about the outdoor components of your HVAC system when rain is falling. Fortunately, there is very little to worry about in normal circumstances. Here is a brief explanation of the effects of rain on HVAC systems.

Normal Rain Poses Minimal Threat

Normal rainfall will have little, if any, impact on your HVAC system, even the outdoor parts. The cabinet of the outdoor unit is designed to protect the components inside it from rain. The outdoor components themselves, such as the condenser, fans, and compressor, are also able to withstand some rain and dampness. In most cases, storms and wind will not have much of an effect on an HVAC system. Rain can even help keep the outdoor HVAC unit clean.

Potential Problems

There are, however, some cases where rainfall and storm activity can harm your HVAC system, including:

  • Flooding: If your HVAC’s outdoor components are submerged during a flood, they will likely be damaged beyond repair. They are water resistant, but not completely waterproof. Mud and other material in floodwaters can also contribute to the damage. When the outdoor unit is installed, make sure it is placed on high ground to reduce the chance of flood damage.
  • Lightning: Very little can withstand the destructive power of a lightning strike, and HVAC equipment is no exception. If lightning hits your outdoor HVAC unit, it will most likely burn out any internal electric or electronic components.
  • Storm damage: Impacts from wind-blown debris, or falling tree limbs could damage an outdoor HVAC cabinet and its contents.
  • Long-term rust and corrosion: Over a long period of time, if your outdoor HVAC components are exposed to water and moisture without an opportunity to dry out, they may develop rust and corrosion. Covering the outdoor unit can help prevent this problem.

Cool Power serves Long Island customers with top-quality HVAC services, including sales, installation, and repair. Contact us today for more information on rain effect on HVAC systems and how to protect your outdoor HVAC equipment.

Our goal is to help educate our customers in Hauppauge, New York and the Long Island area about energy and home comfort issues (specific to HVAC systems). For more information about other HVAC topics, download our free Home Comfort Guide or call us at 631-292-0629.

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