1. Power Issues:
* Blown Fuse: Check the blower motor fuse in the fuse box (usually under the hood or inside the cabin). Consult your owner's manual to locate the correct fuse. Replace it with a fuse of the same amperage if it's blown.
* Faulty Relay: The blower motor often uses a relay to control the higher amperage current. A bad relay can prevent the motor from receiving power. Locate the blower motor relay (often in the fuse box) and try swapping it with a similar relay (if possible) to see if the problem moves.
* Wiring Problems: Check the wiring harness leading to the blower motor for any breaks, loose connections, or corrosion. This includes the connectors at both the blower motor and the control unit.
* Low Battery Voltage: A weak battery might not provide enough power to run the blower motor, especially on higher settings. Test the battery voltage.
2. Blower Motor Issues:
* Failed Blower Motor: The motor itself might have burned out or seized up. This is the most common failure point. Testing the motor (with a multimeter) requires removing it.
* Resistor Issues (if applicable): Some Sebrings use a resistor pack to control fan speeds. A failed resistor can prevent the blower from working on certain speeds or at all. This often manifests as the blower only working on high speed (if at all).
3. Control Issues:
* Blower Motor Control Module (Blower Motor Resistor): This component is responsible for regulating the fan speed. A faulty module can cause the blower to malfunction or not work at all.
* Control Panel Issues: A problem with the switches or the control panel itself can prevent the blower motor from receiving a signal to turn on.
* Body Control Module (BCM) Problems: In some cases, a faulty BCM can interrupt communication with the blower motor. This is less common but possible.
Troubleshooting Steps:
1. Start with the simplest: Check the fuses and battery voltage first.
2. Check the fuses and relays: Replace any blown fuses and try swapping relays.
3. Inspect the wiring: Look for any obvious damage to the wiring harness.
4. Test the blower motor (if possible): This usually requires removing the motor and using a multimeter to test for continuity and voltage. This step is more advanced.
5. Check the blower motor resistor: Inspect for any burnt components or visual damage.
6. Consider professional help: If you're uncomfortable working with electrical components, take your Sebring to a qualified mechanic for diagnosis and repair.
Remember to always disconnect the negative battery terminal before working on any electrical components in your vehicle. Consult your owner's manual for specific locations of fuses, relays, and the blower motor.
