Common questions

Is 70 degrees good for AC?

Is 70 degrees good for AC?

Do not set your thermostat below 70 degrees as it will not cool any faster and could freeze up the system causing more problems. Understand that there is generally a 20 degree difference between indoor air and outside temperatures.

Why does my AC not work on hot days?

Your air conditioner’s performance is dependent on proper circulation of air throughout the system. When that circulation is interrupted or blocked, it can cause your AC unit to work harder to provide the cooling comfort you’re looking for. Watch for some typical ways your unit’s airflow could be compromised.

Why does my a / C not work when it’s Hot?

A/C only blows cold air below 78 degrees or so. Above that, it only blows out hot air. That is not normal, you may need to get the A/C looked at by an authorized dealer. Mine blows very cold, no matter how hot outside it is.

Why does the air conditioner need to be at 33 F?

The A/C system needs to keep evaporator (the component that cools the air as it goes through it) from getting below 33 F as that would cause the evaporator to freeze up and not allow air flow. While this is a good test to see if the A/C is functioning, it doesn’t necessarily mean it is not low on charge.

Why does my AC not work when I climb a hill?

If you are referring o the AC compressor disengaging or the system going warm when climbing a hill: this may be normal operation because the computer will shut off the AC Compressor in a High Demand situation.

How can I tell how well my air conditioner is working?

One way to see how well your A/C system is performing is to measure the outlet temperature at the vent with an accurate thermometer with a probe that will go into the vent. Drive the car with the A/C on max or recirculate.

What should I do if my AC is cooling in 10 degree increments?

If your AC system previously cooled indoor air in 20 degree increments, it now may be cooling in 10 degree increments; the air conditioner works harder to condition the same amount of air. Have your preferred HVAC technician repair the leak, refill refrigerant and recalibrate.

How does an AC system work when the temperature is 80?

As an example, if the indoor air temperature is at 80 degrees, the AC system takes that supply of air and subtracts 15 to 20 degrees of heat before releasing it back into the home air supply.

A/C only blows cold air below 78 degrees or so. Above that, it only blows out hot air. That is not normal, you may need to get the A/C looked at by an authorized dealer. Mine blows very cold, no matter how hot outside it is.

The A/C system needs to keep evaporator (the component that cools the air as it goes through it) from getting below 33 F as that would cause the evaporator to freeze up and not allow air flow. While this is a good test to see if the A/C is functioning, it doesn’t necessarily mean it is not low on charge.

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Ruth Doyle