why does my Honda Accord 9th Generation (2013-2017) AC blow warm air

Honda Accord Eleventh Generation (2023-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

567 words

Problem Statement

Complete guide to fixing AC that blows warm air in Honda Accord 9th Generation. Includes symptoms, diagnostic steps, tools required, and repair procedures.

Affected Component

HVAC

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Wear safety goggles and gloves when handling refrigerants.

Symptoms

•AC system blowing warm air instead of cold
•Unusual noises from the AC compressor
•Increased humidity in the cabin
•Poor airflow from AC vents
•AC compressor not engaging
•Check engine light illuminated

Diagnostic Steps

1
Inspect the AC refrigerant level using a pressure gauge.
2
Check for any visible leaks in the AC system components.
3
Scan for error codes using an OBD-II scanner to identify any related faults.
4
Examine the AC compressor for proper operation and engagement.
5
Test the AC relay and fuses for continuity.
6
Inspect the cabin air filter for clogs or blockages.

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

•OBD-II scanner
•Refrigerant gauge set
•Manifold gauge set
•Socket set
•Screwdrivers

Parts Required

•AC refrigerant
•Cabin air filter
•AC compressor (if needed)
•AC condenser (if needed)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Inspect the AC refrigerant level using a pressure gauge.
2
Check for any visible leaks in the AC system components.
3
Scan for error codes using an OBD-II scanner to identify any related faults.
4
Examine the AC compressor for proper operation and engagement.
5
Test the AC relay and fuses for continuity.
6
Inspect the cabin air filter for clogs or blockages.

Solution

1. Preparation

Gather tools and parts needed for the repair.
Ensure the vehicle is parked on a level surface and the engine is off.
Disconnect the battery to prevent any electrical issues.

2. Check and Recharge Refrigerant

Tools Required: Refrigerant gauge set, refrigerant canister, manifold gauge set.
Sub-steps:
1. Attach the refrigerant gauge to the low-pressure service port.
2. Read the pressure on the gauge; if it’s below the recommended level (typically 30-40 psi), proceed to recharge.
3. Connect the refrigerant canister to the gauge set and open the valve slowly to add refrigerant until the correct pressure is achieved.
4. Monitor the AC system while recharging to avoid overfilling.

3. Inspect and Replace AC Components

Tools Required: Socket set, screwdrivers, wrenches.
Sub-steps:
1. Identify and remove components such as the AC compressor, condenser, or evaporator if visual inspection shows damage or leakage.
2. Replace any faulty components with OEM (Original Equipment Manufacturer) parts.
3. Reinstall the components securely and ensure all connections are tight.

4. Replace Cabin Air Filter

Tools Required: None, just hands.
Sub-steps:
1. Locate the cabin air filter access compartment, usually behind the glove box.
2. Remove the glove box to access the filter.
3. Remove the old filter and install a new one, ensuring proper orientation.
4. Reassemble the glove box.

5. Test AC Operation

Tools Required: None.
Sub-steps:
1. Reconnect the battery.
2. Start the engine and turn on the AC to the maximum setting.
3. Monitor the temperature of the air coming from the vents for cold air.