Should the outside air conditioner unit be covered in winter?

Should You Cover Your Air Conditioner During Winter?

As the summer fades and your air conditioning unit settles into its off-season, many homeowners ponder whether to cover their air conditioner until spring. The simple answer is no, but there are considerations to keep in mind.

Understanding Your Air Conditioner’s Durability

Your air conditioning unit is designed to withstand various weather conditions, including snow and rain. Built with sturdy metal housing, these units are meant for outdoor use throughout the year.

The Risks of Using Covers

While it may seem beneficial to cover your air conditioner, doing so can trap moisture, leading to mold growth. This build-up of moisture can ultimately result in rust and malfunction of the unit. Over time, rust can cause components to deteriorate and lead to expensive repairs or replacements.

Animal Intrusions

Many people use air conditioner covers in hopes of preventing small animals from nesting. Unfortunately, covers can also provide an inviting shelter for critters such as mice. This can lead to more significant problems, including damage to wiring as rodents make a home in the unit.

When Is It Appropriate to Cover Your AC?

Coverage may be appropriate during the fall, particularly if your unit is situated near a lot of trees. In such cases, covering the unit can protect it from debris like leaves and twigs. However, it's essential to remove any debris before the winter season to avoid future complications. Regular maintenance is crucial, and it’s advisable to service the unit before firing it up each spring.

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Icicles and Overhead Hazards

While covering your air conditioner may not be necessary during winter, it is wise to keep an eye out for icicles forming above the unit. If icicles are present, take precautions to remove them or construct a barrier, such as a sturdy piece of wood, to prevent falling ice from damaging the unit. Alternatively, lightweight mesh coverings can be utilized, but these may not offer protection against falling ice.

Best Practices for Covering

If you decide to cover your air conditioner, remember that you should only cover the top of the unit to avoid damage from moisture buildup. Various air conditioner covers can be purchased online or at local retailers. Ensure that you choose a top cover rather than one that encloses the entire unit to prevent rust and mold issues.

Conclusion

Covering your air conditioner in winter is generally unnecessary, but you should be aware of potential hazards, like falling ice or debris. Always prioritize regular maintenance and servicing to ensure your unit performs optimally when the warmer months return.

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