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Honda Accord 10th Generation (2018-2022) AC not blowing cold air, what are the reasons? - Honda Accord
Home/Cars/Honda/Accord/8th Generation (2008-2012)/Honda Accord 10th Generation (2018-2022) AC not blowing cold air, what are the reasons?

Honda Accord 10th Generation (2018-2022) AC not blowing cold air, what are the reasons?

Honda Accord 8th Generation (2008-2012)

Error Codes
2-4 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
4 min read
606 words

Problem Statement

Learn how to diagnose and fix AC not blowing cold air in Honda Accord 10th Generation (2018-2022). Step-by-step guide with symptoms, diagnostic steps, 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 components.
  • •Allow the engine to cool before opening any components related to the AC system.

Symptoms

  • •AC compressor not engaging
  • •Warm air blowing from vents
  • •AC system making unusual noises
  • •Increased humidity inside the vehicle
  • •AC warning light illuminated on the dashboard
  • •Reduced airflow from AC vents

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6

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

  • •AC manifold gauge set
  • •Multimeter
  • •Fuse puller or pliers
  • •Basic socket set

Parts Required

  • •Refrigerant (R-134a or as specified in owner's manual)
  • •AC fuses
  • •Cabin air filter

Additional Information

Affected Component
HVAC
Estimated Time
2-4 hours
Difficulty
medium
Severity
medium
Tools Required
4 items
Parts Required
3 items

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Solution
1. Preparation
  • Gather all necessary tools and parts.
  • Disconnect the vehicle battery to ensure safety.
  • Allow the engine to cool before starting work.
2. Recharge Refrigerant

  1. Connect Pressure Gauge

    • Attach the low-pressure side gauge to the AC service port.
    • Tools Required: AC manifold gauge set.

  2. Check Refrigerant Level

    • Read the pressure on the gauge; if low, refrigerant needs to be added.

  3. Add Refrigerant

    • Connect a refrigerant can to the gauge and add the refrigerant to the system as per manufacturer specifications.
    • Monitor the pressure to ensure it reaches the recommended level.
3. Inspect and Replace AC Relay/Fuses

  1. Locate the Fuse Box

    • Find the fuse box under the dashboard or in the engine compartment.

  2. Check Fuses

    • Remove the AC fuse and inspect it for continuity.
    • Tools Required: Fuse puller or pliers.

  3. Replace if Necessary

    • If the fuse is blown, replace it with one of the same amperage.

  4. Test AC Relay

    • Use a multimeter to check the AC relay for proper function.
    • Replace if it shows no continuity.
4. Inspect and Clean Cabin Air Filter

  1. Locate Cabin Air Filter

    • Refer to the owner’s manual for the specific location.

  2. Remove and Inspect Filter

    • Take out the cabin air filter and inspect for dirt and blockage.

  3. Clean or Replace

    • Clean the filter if reusable or replace it with a new one.
5. Test AC Compressor

  1. Visual Inspection

    • Check the compressor for signs of damage or leakage.

  2. Electrical Check

    • Test the electrical connections to the compressor for secure connections.

  3. Engage the Compressor

    • Start the engine and turn on the AC to see if the compressor engages. If not, further diagnostics may be needed.