how to fix Honda Accord 9th Generation (2013-2017) air conditioning not blowing cold

Honda Accord Eleventh Generation (2023-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

549 words

Problem Statement

Learn how to diagnose and fix the A/C not blowing cold in Honda Accord 9th Generation (2013-2017). Step-by-step guide with tools and 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.
•Allow the engine to cool before performing any repairs to the A/C system.

Symptoms

•A/C compressor not engaging
•Warm air blowing from vents
•Unusual noises from the A/C compressor
•A/C clutch not visible or spinning
•A/C system blowing air at ambient temperature
•Refrigerant leaks or oily residue around A/C components

Diagnostic Steps

1
Check the A/C system fuse and relay for continuity and proper function.
2
Use an OBD-II scanner to check for any error codes related to the A/C system.
3
Inspect the A/C compressor for physical damage or signs of wear.
4
Verify refrigerant levels using a manifold gauge set.
5
Check for any visible leaks in the A/C lines or components.
6
Test the A/C pressure switch for functionality.

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
•Manifold gauge set
•Refrigerant can with gauge attachment
•Socket set
•Wrenches
•Refrigerant recovery machine

Parts Required

•A/C compressor (if found faulty)
•A/C refrigerant
•A/C fuse/relay (if blown)

Related Faults

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Diagnostic Steps

1
Check the A/C system fuse and relay for continuity and proper function.
2
Use an OBD-II scanner to check for any error codes related to the A/C system.
3
Inspect the A/C compressor for physical damage or signs of wear.
4
Verify refrigerant levels using a manifold gauge set.
5
Check for any visible leaks in the A/C lines or components.
6
Test the A/C pressure switch for functionality.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and the engine is off.
Disconnect the negative battery terminal for safety.

2. Check and Replace Fuses/Relay

Locate the A/C fuse and relay in the fuse box.
Inspect the fuse for continuity; replace if blown.
Swap the A/C relay with a similar relay from another circuit (if available) to test.

3. Recharge the A/C System

Tools Required: Manifold gauge set, refrigerant can with a gauge attachment.
Connect the manifold gauges to the high and low-pressure service ports.
Start the engine and turn on the A/C to the maximum setting.
Add refrigerant until the system reaches the appropriate pressure as indicated by the gauges (typically around 30-40 psi on the low side and 200-250 psi on the high side).
Monitor the temperature at the vents to ensure it's cooling effectively.

4. Inspect and Replace A/C Compressor (if necessary)

Tools Required: Socket set, wrenches, refrigerant recovery machine.
Recover the refrigerant using a recovery machine.
Disconnect the A/C lines from the compressor and remove the mounting bolts.
Carefully remove the old compressor and replace it with a new or refurbished unit.
Reconnect the A/C lines ensuring a proper seal and torque to manufacturer specifications.
Recharge the system with refrigerant following the previous step.

5. Test the System

Reconnect the negative battery terminal.
Start the engine, turn on the A/C, and monitor the system for proper operation.
Check for any unusual noises, leaks, or issues with airflow.