If your AC isn't blowing cold air after cleaning, it's usually because the system froze up due to restricted airflow, moisture got on an electrical component, or a wire was accidentally disconnected. In many cases, it’s a simple fix you can resolve on your own.
If your AC isn't cooling after a cleaning, you likely have wet components, displaced temperature sensors, or a tripped breaker. First, let it dry for at least an hour, ensure the thermostat is in "Cool" mode, and check that no wires were accidentally knocked loose inside the unit.
The 3-minute rule is an HVAC safety guideline that requires waiting at least three minutes after turning off an air conditioner before restarting it. This brief pause allows refrigerant pressures inside the system to equalize, preventing severe strain on the compressor and costly electrical or mechanical breakdowns.
If your 2018 Chevy Impala's AC is blowing warm or ambient-temperature air, the most common culprits are a refrigerant leak, a failed A/C evaporator core, or a faulty A/C compressor.
To reset an AC not blowing cold air, turn off the thermostat, turn off the HVAC circuit breaker in your home's main electrical panel, wait 5–10 minutes to allow the system to fully power down and equalize, then turn the breaker back on and set the thermostat to "Cool".
Power down your AC: Turn off your AC unit and unplug it from the power source. This will ensure that you stay safe while working on the unit. Locate the reset button: Most air conditioning units have a reset button located near the outside unit. It is usually a small button located inside a small hole.
If your AC is blowing room-temperature or warm air, the most common culprits are a clogged air filter, a frozen evaporator coil, tripped breakers, or blocked airflow at the outdoor unit.
If your relay fails, there will be no power to the compressor, so the compressor cannot turn on. Recurring Clicking Noise When Turned On: The relay might struggle to work before the system fails, causing a clicking noise. There will be constant effort to deliver power to the compressor before the relay fails.
On average, the cost for a Chevrolet Impala Car AC Repair is $372 with $176 for parts and $196 for labor. Prices may vary depending on your location.
Worst Years to Avoid
Early 2000s Impalas, particularly 2000–2005, are notorious for engine and transmission issues, while 2006–2009 models often face transmission failures and other reliability complaints.
Ideally, your air conditioner should cycle 2-3 times an hour to maintain a consistent temperature throughout your home. On those warm days, expect your AC to run for about 15 minutes each cycle. During extreme heat, your AC might need to work almost continuously to keep your space cool.
Yes, you should turn your AC off. Continuing to run a malfunctioning system strains vital components (like the compressor), significantly increases your energy bill, and can turn a minor fix into a catastrophic, expensive breakdown.
The Rule of 5000 Rule is simple: Multiply the cost of the needed repair by the age of your air conditioner. If the result is greater than 5000, AC replacement is generally the smarter choice. If it's less than 5000, a repair might still be worth the investment.
A bad AC compressor often shows a few distinct warning signs. The most common symptoms include vents blowing lukewarm or warm air, grinding, squealing, or ticking noises when the AC is on, a compressor clutch that fails to engage, fluid leaks, and a burning rubber smell.
Turning on the AC Too Soon
Wait at least 30 to 60 minutes for the unit to dry. Water and dampness can interfere with the unit's operation and cause electrical components to short circuit.
When your AC is running but not cooling, it is typically caused by a restricted airflow (e.g., a clogged filter), an outdoor unit struggling to release heat, or a mechanical/electrical malfunction like a failed capacitor or low refrigerant.
Yes, you can usually drive your car with a bad A/C compressor, provided it is not seized. If the compressor is only failing to cool but the pulley still spins freely, the car is safe to drive, though you may hear noise. If the compressor is seized (locked up), it can snap the serpentine belt, causing loss of power steering, alternator failure, and engine overheating.
Understanding which part tends to drive the cost in a car's AC system helps drivers plan and budget for necessary repairs. While the compressor is often the most expensive single component, the total cost will depend on your vehicle's design and the extent of the repair.
The most common reasons a Chevrolet Impala AC isn't working are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor.
Apply 12 volts to the coil terminals using jumper wires from your battery, and you should hear a click and get continuity across pins 30 and 87. No click and no continuity means the relay is bad.
The A/C compressor relay is almost always located in the under-hood fuse and relay box in the engine compartment.
Black Death occurs when moisture contamination in an AC system forms corrosive acids that attack metal surfaces and break down compressor oil, resulting in a dark sludge that can damage components. It is caused by humidity entering through small leaks or using improper refrigerant.
Yes, turn your AC off immediately. Running an air conditioner that isn't cooling puts severe strain on critical parts—like the compressor—which can lead to permanent damage and a much higher repair bill.
How cool should my house be if it's 100 outside? Your AC can typically cool about 20°F below the outdoor temperature, so if it's 100°F outside, maintaining 78–80°F indoors is reasonable.
Most residential AC units last between 15 and 20 years. However, the exact lifespan varies based on the type of unit and how well it is cared for in your local climate.