Why a wrap can do more harm than good
Outdoor units are built to sit outside in rain, wind and cold. A plastic tarp or bag that can't breathe holds moisture against the coil and the metal cabinet, which can lead to rust and corrosion over the winter. A covered unit is also a warm, dry spot that mice and other critters love to move into, and they chew wiring.
If you have a heat pump, the outdoor unit is your heat. It runs all winter, so it can never be covered while the system is on. Wrapping a heat pump can choke it and leave you without heat.
What to do instead
Do a quick look from the outside with the thermostat off.
- Keep a couple of feet clear on every side and leave the top open so air can move.
- Pull leaves, sticks and yard debris away from the base by hand.
- Do not open the cabinet, spray the coil with a hose, or poke at anything inside.
- Leave it uncovered unless your manufacturer's instructions say to use a specific breathable cover. If they do, use only that, and only on an air conditioner that is not running for the season.
Snap a photo of your outdoor unit today while it is clean and clear. If something looks different after a storm, like a bent grille or a branch on top, you will have a quick before-and-after to compare.
When to call me
A little frost on a heat pump in cold weather is normal, and it should melt off during a defrost cycle. Ice that stays and keeps building, a unit that is frozen solid, or loud grinding, rattling or buzzing are not normal. Turn the system off at the thermostat and get it checked. Call me at (470) 999-7395 or book online for a $79 diagnostic.
