FAULTBASE
NEWSASKCars
© 2025 FAULTBASE
All rights reserved.
v2.0.0 • Production
ContactPrivacyImpressum
Home/Cars/Honda/Accord/10th Generation (2018-2022)/how to fix the air conditioning not cooling in my Honda Accord during summer

how to fix the air conditioning not cooling in my Honda Accord during summer

Honda Accord 10th Generation (2018-2022)

Severity: mediumDifficulty: medium2-4 hours
3 min read
579 words

Problem Statement

Learn how to diagnose and fix the air conditioning not cooling in your Honda Accord. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Component
HVAC
Repair Time
2-4 hours

Safety Warnings

  • ⚠Always wear safety glasses and gloves when handling refrigerant.
  • ⚠Ensure the engine is off and cool before working on any AC components.

Symptoms

  • •Air conditioning system blowing warm air
  • •Increased humidity inside the vehicle
  • •Unusual noises from the AC compressor
  • •AC compressor not engaging
  • •Foul odor when AC is turned on
  • •Condensation on the outside of the AC unit

Diagnostic Steps

  1. 1Check the AC system pressure using a manifold gauge set to see if it is within specifications.
  2. 2Inspect the AC compressor for any visible damage or leaks.
  3. 3Verify the operation of the AC compressor clutch by checking if it engages when the AC is turned on.
  4. 4Check for refrigerant leaks around hoses, fittings, and the condenser using UV dye or soap solution.
  5. 5Inspect the cabin air filter to ensure it's not clogged and restricting airflow.
  6. 6Test the AC system's electrical components, including fuses and relays, for proper function.

Solution

Solution

1. Preparation

  • Gather tools and parts needed for the repair.
  • Ensure the vehicle is parked on a level surface with the engine off.
  • Disconnect the negative battery terminal to ensure safety.

2. Recover Refrigerant

  • Use an AC recovery machine to safely recover refrigerant from the system.
  • Follow the manufacturer's instructions for the recovery machine operation.

3. Repair or Replace Components

  • If compressor is faulty:

    • Remove the serpentine belt by loosening the tensioner.
    • Unbolt the AC compressor from the engine bracket.
    • Disconnect the electrical connector and refrigerant lines from the compressor.
    • Install the new compressor by reversing the removal steps.
  • If refrigerant is low:

    • Locate the low-pressure service port and connect the refrigerant can.
    • Recharge the system with the appropriate type and amount of refrigerant (check the vehicle specifications).
  • If the cabin air filter is clogged:

    • Remove the glove box to access the air filter compartment.
    • Replace the old filter with a new one, ensuring proper orientation.

4. Recharge the AC System

  • After repairing or replacing components, recharge the AC system with refrigerant and add any necessary oil according to manufacturer specifications.

5. Test the System

  • Reconnect the negative battery terminal.
  • Start the engine and turn on the AC to the maximum setting.
  • Check the temperature of the air coming from the vents to ensure it is cooling properly.

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

  • Manifold gauge set
  • AC recovery machine
  • Socket set
  • Screwdrivers
  • Torque wrench

Parts Required

  • AC compressor (if faulty)
  • Refrigerant (type as specified in the owner's manual)
  • Cabin air filter (if clogged)

Additional Information

Component

HVAC

Repair Time

2-4 hours

Difficulty

medium

Severity

medium

Tools

5 items

Parts

3 items

Related Faults

Discover similar issues

  1. my Honda Accord transmission slips when I accelerate what's wrong

    Learn how to diagnose and fix transmission slipping issues in Honda Accord. Step-by-step guide with symptoms, diagnostic steps, and repair instruction...

    Component:Transmission
    Symptoms
    • •Transmission slips or delays when accelerating
    • •Engine RPM increases without corresponding vehicle speed
    • +{count} more
  2. my Honda Accord transmission slips when I accelerate what could be the issue

    Learn how to diagnose and fix transmission slipping issues in Honda Accord. Step-by-step guide with diagnostic procedures and repair instructions.

    Component:Transmission
    Symptoms
    • •Transmission slips when accelerating
    • •High RPMs without corresponding speed increase
    • +{count} more
  3. my Honda Accord lights flicker when I turn on the AC what's wrong

    Learn how to diagnose and fix flickering lights when AC is on in Honda Accord. Step-by-step guide with diagnostic procedures and repair instructions.

    Component:Electrical
    Symptoms
    • •Flickering dashboard lights
    • •Dim headlights when AC is activated
    • +{count} more
  4. how to fix P0171 code in Honda Accord 9th Generation (2013-2017)

    P0171

    Learn how to diagnose and fix P0171 engine too lean issue in Honda Accord 9th Generation (2013-2017). Step-by-step guide with diagnostic procedures an...

    Component:Engine
    Symptoms
    • •Check engine light illuminated
    • •Rough idle or stalling
    • +{count} more
  5. what does it mean when my Honda Accord TPMS light is on

    Learn how to diagnose and fix the TPMS light issue in your Honda Accord. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

    Component:Electrical
    Symptoms
    • •TPMS warning light is illuminated on the dashboard
    • •One or more tires may appear visibly deflated
    • +{count} more
  6. my Honda Accord feels like it’s losing power when I drive, what’s wrong

    Learn how to diagnose and fix loss of power issues in Honda Accord. Step-by-step guide with diagnostic procedures and repair instructions.

    Component:Engine
    Symptoms
    • •Engine stalling or hesitating during acceleration
    • •Reduced acceleration or sluggish response
    • +{count} more

Share this solution

Comments

Sign in to share your thoughts

Sign In

No comments yet

Be the first to share your thoughts

Back to Generation