How to Lubricate the Motor on a Gree Inverter: A Comprehensive Guide

Maintaining the efficiency and longevity of your Gree inverter air conditioning unit is crucial, and one important aspect of this is properly lubricating the motor. This comprehensive guide will walk you through the step-by-step process of lubricating the motor on your Gree inverter, ensuring optimal performance and prolonging the lifespan of your HVAC system.

Preparing for the Task

Before you begin, it’s essential to gather the necessary tools and materials. You’ll need the following:

  1. A Phillips-head screwdriver
  2. A small amount of high-quality HVAC-approved lubricant
  3. A clean, dry cloth
  4. A small brush (optional)

Additionally, ensure that the power to the unit is turned off at the circuit breaker or fuse box to prevent any electrical hazards during the process.

Accessing the Blower Wheel

how to lubricate motor on Gree inverterImage source: Gree ac by Air Fans

  1. Remove the Front Cover: Begin by removing the front cover of the indoor unit. This is typically done by pulling the cover straight out. You may need to remove any plastic clips or screws located at the bottom of the cover to expose the Phillips-head screws underneath.

  2. Release the Drain Pan: Next, locate the drain pan and remove the screws that hold it in place. Gently tilt the drain pan downward to allow any accumulated water to drain out.

  3. Access the Blower Wheel: To access the blower wheel, you’ll need to remove the set screw that secures it in place. Once the set screw is removed, you can then remove the screws along the side of the unit to move the coil out of the way. This will allow you to pull the blower wheel out for lubrication.

Lubricating the Motor

  1. Inspect the Motor: Carefully inspect the motor shaft for any signs of wear, damage, or excessive buildup of debris. If you notice any issues, it’s best to consult a professional HVAC technician before proceeding.

  2. Apply Lubricant: Using a small amount of high-quality HVAC-approved lubricant, apply a thin, even layer to the motor shaft. Be careful not to use too much lubricant, as this can lead to issues within the system.

  3. Distribute the Lubricant: Gently rotate the blower wheel by hand to help distribute the lubricant evenly along the shaft. You can also use a small brush to lightly spread the lubricant if necessary.

  4. Wipe Away Excess: Use a clean, dry cloth to gently wipe away any excess lubricant that may have accumulated on the surrounding components.

Reassembling the Unit

  1. Replace the Blower Wheel: Carefully replace the blower wheel, ensuring that it is properly aligned and secured with the set screw.

  2. Reinstall the Coil: Reposition the coil and secure it in place with the screws you removed earlier.

  3. Reinstall the Drain Pan: Replace the drain pan and secure it with the screws.

  4. Reattach the Front Cover: Finally, reattach the front cover of the indoor unit, making sure to secure any plastic clips or screws.

Powering On and Verifying Operation

  1. Turn the Power Back On: Once the unit is fully reassembled, turn the power back on at the circuit breaker or fuse box.

  2. Verify Proper Operation: Observe the unit’s operation and listen for any unusual noises or vibrations. If everything appears to be functioning normally, your Gree inverter motor lubrication is complete.

It’s important to note that lubricating the motor on a Gree inverter is not a common maintenance task, and it’s generally recommended to consult the user manual or contact a professional HVAC technician if you’re unsure or encounter any issues during the process.


  1. Gree Service Manual for DC Inverter VRF PLUS WATER HEATER SOLUTION
  2. How to Clean a Dockless Blower Wheel by Kalos Services on YouTube
  3. How to Clean an Air Conditioner Outside Unit at Home by Lovepreet Singh on YouTube