how to fix the AC not blowing at all in my Ford Explorer Fifth Generation (2011-2019)

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

573 words

Problem Statement

Learn how to diagnose and fix the AC not blowing air in Ford Explorer 2011-2019. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

HVAC

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.

Symptoms

•No air flow from the AC vents
•AC control panel lights may be functioning but no response
•Recirculation or fresh air mode not engaging
•No unusual noises from the AC system
•Increase in cabin temperature without air conditioning

Diagnostic Steps

1
Check the AC control settings to ensure the system is set to 'ON' and the fan speed is adjusted.
2
Inspect the vehicle’s fuse box for any blown fuses related to the AC system.
3
Use an OBD-II scanner to check for any error codes that may indicate electrical issues.
4
Test the blower motor by applying direct power to it to determine if it operates.
5
Inspect the wiring and connections to the blower motor for any signs of damage or corrosion.
6
Verify that the AC compressor engages when the system is turned on by listening for a clicking sound.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•Screwdriver set
•Multimeter
•Wire connectors
•Pliers

Parts Required

•Blower motor (if defective)
•Fuses (if blown)
•Relay or pressure switch (if faulty)

Related Faults

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Diagnostic Steps

1
Check the AC control settings to ensure the system is set to 'ON' and the fan speed is adjusted.
2
Inspect the vehicle’s fuse box for any blown fuses related to the AC system.
3
Use an OBD-II scanner to check for any error codes that may indicate electrical issues.
4
Test the blower motor by applying direct power to it to determine if it operates.
5
Inspect the wiring and connections to the blower motor for any signs of damage or corrosion.
6
Verify that the AC compressor engages when the system is turned on by listening for a clicking sound.

Solution

1. Preparation

Gather necessary tools and parts before starting the repair.
Tools Required:
- Screwdriver set
- Multimeter
- Wire connectors
- Pliers
Safety Warnings:
- Disconnect the battery before working on electrical systems.

2. Check and Replace Fuses

Locate the fuse box, typically found under the dashboard or in the engine compartment.
Check the AC fuse using a multimeter to see if it has continuity.
If blown, replace it with a fuse of the same amperage.

3. Test and Replace Blower Motor

Disconnect the blower motor connector.
Use a multimeter to check for voltage at the connector with the AC system turned on.
If no voltage is present, trace back to the resistor or control module.
If voltage is present but the motor does not operate, replace the blower motor:
- Remove the screws securing the blower motor.
- Disconnect the blower motor wiring harness.
- Install the new blower motor by reversing the removal steps and secure it properly.

4. Inspect Wiring and Connectors

Inspect all wiring leading to the blower motor and AC system for wear and tear.
Repair or replace any damaged wires or connectors.

5. Verify AC Compressor Operation

Start the vehicle and turn on the AC system.
Listen for the AC compressor engaging (a clicking sound).
If the compressor does not engage, check the relay and pressure switches, replacing them as needed.