A routine home sale took an expensive turn when an aging air conditioner that had seemed fine suddenly appeared to fail on inspection day. The seller said they were sent a video showing the system covered in ice.
"I'm just trying to get an understanding of what happened or may have happened," the original poster said on Reddit. "The interior unit, the lines… everything is frozen solid."
Here's what to know
The AC was an older unit, but it had kept cooling through move-out, contractor work, open houses, and showings. The seller also said they had checked the coils and replaced the air filter just over a month before the inspection.
Many replies suggested the freeze-up was more likely tied to an existing issue than sabotage, though some said an inspector could have pushed the system harder than usual.
One user identifying as an HVAC professional said, "Over the years I have had numerous service calls where the home inspector has turned the thermostat to an extremely low setting to get the HVAC system to run at maximum capacity."
Other users pointed to typical causes of icing, including restricted airflow from a dirty filter, low refrigerant, or extra strain from doors being left open during showings.
"First thing to check is the air filter(s)," one commenter said. "If you get enough reduced airflow you will get freezing."
If you're dealing with an aging system, this kind of scare is also a reminder that upgrading your heating and cooling system can be one of the best ways to save money on utility bills and protect yourself against rising energy prices. If you want help sorting through your options, Palmetto's Comfort Plan network can help you find efficient heating and cooling solutions for your home and connect you with vetted installers.
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More background
In the middle of a home sale, an inspection-day failure can quickly become a negotiation headache, especially if buyers start asking for credits or full replacements.
A unit can seem fine right up until inspection and still have a problem building in the background. Several users noted that renovation dust can clog filters faster than expected, and once airflow is restricted enough, the evaporator coil can start icing over.
One user explained, "If the evap coil runs long enough, yes, it can freeze."
New, efficient HVAC systems and heat pumps can reduce monthly energy use while making a home more comfortable during extreme weather. That can mean more predictable utility costs and fewer surprise repair bills.
You can push savings further by pairing electric appliances with solar panels. EnergySage makes it easy to find the best solar array and installer for your home and budget, saving you up to $10,000.
What can be done?
The practical advice from users was to let the system thaw completely before trying much else. They recommended replacing the filter, running the fan on its own, and then testing the cooling again; if the problem continues, a technician should check both airflow and refrigerant levels.
If you're thinking longer term, Palmetto can also help you move beyond patchwork fixes. Through Palmetto's Comfort Plan, you can explore efficient HVAC and heat pump upgrades, and if you're not ready to spend up front, the plan includes $0-down options that can lower your heating and cooling costs by up to 50%. Palmetto's Comfort Plan also includes 12 years of free maintenance.
That combination can make an upgrade feel much more practical, especially if you are trying to avoid another breakdown during a heat wave or a cold snap. Lower bills, less maintenance stress, and better efficiency can add up quickly.
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