You may have heard about an air conditioner’s indoor coil freezing over because someone lowered the thermostat too far. This may sound a bit fanciful: after all, the lowest setting on most thermostats is 60°F, which is definitely far above freezing.
But there’s truth to this—an air conditioner can suffer from coil-freeze with the thermostat lowered too far. It’s more likely to occur at higher altitudes, such as more than 5,000 feet above sea level. Colorado Springs is 6,035 feet above sea level, so the danger of a frozen coil is extremely real for our ACs.
Even if your AC doesn’t freeze up because of a low thermostat setting, you still shouldn’t lower the thermostat too far because it creates other problems for an AC leading to air conditioning repair in Monument, CO and high costs to run the system.