FAULTBASE
Error CodesASKCars
© 2026 FAULTBASE
All rights reserved.
v2.0.0 • Production
ContactPrivacyImpressum
my Honda CR-V Fifth Generation (2017-2022) AC is blowing warm air what's the issue - Honda CR-V
Home/Cars/Honda/CR-V/Fifth Generation (2017-2022)/my Honda CR-V Fifth Generation (2017-2022) AC is blowing warm air what's the issue

my Honda CR-V Fifth Generation (2017-2022) AC is blowing warm air what's the issue

Honda CR-V Fifth Generation (2017-2022)

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

Problem Statement

Complete guide to fixing AC that blows warm air in Honda CR-V 2017-2022. 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 components.
  • •Allow the engine to cool before opening any components.
  • •Wear safety goggles and gloves when handling refrigerant.

Symptoms

  • •AC compressor not engaging
  • •Warm air blowing from vents
  • •Unusual noises from the AC system
  • •Increased humidity inside the vehicle
  • •AC control lights flickering or not illuminating

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
  • •Torque wrench
  • •Refrigerant canister

Parts Required

  • •AC compressor (if faulty)
  • •AC condenser (if damaged)
  • •Refrigerant (R-1234yf)

Additional Information

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

Related Faults

Loading...

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
Solution
1. Preparation
  • Gather all necessary tools and parts.
  • Disconnect the vehicle battery to ensure safety during the repair.
  • Allow the engine to cool before starting any work.
2. Refrigerant Recharge
  1. Connect the manifold gauge set to the low and high-pressure service ports on the AC system.
  2. Start the vehicle and turn the AC to the maximum setting.
  3. Check the pressure readings and compare them with the manufacturer's specifications.
  4. If low, carefully add the appropriate refrigerant (R-1234yf) until proper levels are reached.
    • Tool Required: Manifold gauge set, refrigerant canister.
    • Safety Warning: Wear safety goggles and gloves when handling refrigerant.
3. Inspect and Replace AC Compressor
  1. Locate the AC compressor assembly.
  2. Disconnect the electrical connector from the compressor.
  3. Remove the drive belt from the compressor pulley.
  4. Unscrew the bolts securing the compressor to the engine block and remove the compressor.
  5. Install the new compressor, ensuring all bolts are torqued to the manufacturer's specifications.
    • Tool Required: Socket set, torque wrench.
4. Check and Replace AC Condenser (if necessary)
  1. Inspect the condenser for any visible signs of damage or blockage.
  2. If damaged, remove the front grille and any components obstructing access.
  3. Disconnect the refrigerant lines from the condenser.
  4. Unscrew the mounting bolts and remove the condenser.
  5. Install the new condenser and reconnect the refrigerant lines.
    • Tool Required: Socket set, wrenches.
5. Reconnect Battery and Test System
  1. Reconnect the vehicle battery.
  2. Start the engine and turn on the AC system.
  3. Monitor for any abnormal sounds and check if cold air is now being produced.