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why does my Honda Accord 9th Generation (2013-2017) AC blow hot air - Honda Accord
Home/Cars/Honda/Accord/Eleventh Generation (2023-present)/why does my Honda Accord 9th Generation (2013-2017) AC blow hot air

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

Honda Accord Eleventh Generation (2023-present)

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

Problem Statement

Complete guide to fixing AC that blows hot 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 battery before working on electrical systems.
  • •Allow the engine to cool before opening any components related to the AC system.

Symptoms

  • •AC compressor not engaging
  • •Warm air blowing from vents
  • •Unusual noises from the AC unit
  • •AC system cycling on and off rapidly
  • •Refrigerant leak detected
  • •Increased cabin humidity

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

  • •OBD-II scanner
  • •Manifold gauge set
  • •Socket set
  • •Refrigerant can
  • •Wrench set

Parts Required

  • •Refrigerant
  • •AC compressor (if necessary)
  • •Expansion valve (if necessary)

Additional Information

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

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Solution
1. Preparation
  • Gather all necessary tools and parts.
  • Disconnect the negative battery terminal to prevent electrical hazards.
  • Ensure the vehicle is parked on a flat surface and the engine is cool.
2. Recharge Refrigerant
  • Tools Required: Refrigerant can, manifold gauge set
  • Connect the manifold gauges to the AC service ports (low and high side).
  • Start the engine and turn on the AC to the maximum setting.
  • Check the low side pressure; if it’s below the recommended value, proceed to recharge the system.
  • Follow the refrigerant can instructions to add refrigerant until the correct pressure is reached.
  • Disconnect the manifold gauges and replace the service port caps.
3. Inspect and Replace AC Compressor
  • Tools Required: Socket set, AC compressor replacement
  • Remove the drive belt by loosening the tensioner pulley.
  • Disconnect the electrical connectors from the AC compressor.
  • Remove the mounting bolts and detach the compressor from the engine.
  • Install the new AC compressor by reversing the removal steps, ensuring proper torque on bolts (usually around 20-25 ft-lbs).
  • Reconnect the electrical connectors and replace the drive belt.
4. Check and Replace Expansion Valve (if necessary)
  • Tools Required: Wrench set
  • Locate the expansion valve and disconnect the lines leading to it.
  • Remove the mounting bolts and take out the old valve.
  • Install the new expansion valve, ensuring to replace seals as needed.
  • Reattach the refrigerant lines securely.