Avoid a trip to the mechanic by trying to troubleshoot problems yourself in your Hyundai Santa Fe. Air conditioning problems are quite common, and can often be quite simple to diagnose and even fix. Take a few easy steps to try and determine the cause of the air conditioning problems.
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See if the problem is as simple as a blown fuse. If the temperature controls on the dashboard seem to work correctly but have no effect on the air, then this is likely the problem. The fuse box in a Hyundai Santa Fe is located on the side of the dash to the left of the steering wheel.
Pry off the fuse panel cover. Replace the blown fuse with one of equal amperage to avoid damaging the electrical system.
Check the control panel if the controls do not work at all. Find the control panel by prying off the top instrument panel around the air conditioning temperature controls.
Unscrew four screws, one in each corner, and remove the temperature control panel. Unplug four electrical connectors and one vacuum hose to the control panel.
Listen for the blower motor while adjusting the controls. Get to the blower motor in your Hyundai Santa Fe by first disabling the airbags. Unscrew the glove box and remove it.
Unscrew and remove the blower motor wire harness found directly behind the blower motor. Unscrew three screws holding the blower motor into place and then remove the motor.
Check the coolant levels. The coolant reservoir is found under the hood at the very front of the vehicle. It is white and plastic. Open the cap and shine a flashlight into the reservoir. Make sure the coolant level is less than the full line but more than the low line.