iRobot 4420155 Roomba 800 900 Series Side Brush Module Instruction Manual

1. Product Overview

The iRobot 4420155 Side Brush Module is an original replacement part designed to maintain the optimal cleaning performance of your iRobot Roomba vacuum cleaning robot. This module includes both the motor and the side brush, ensuring efficient debris collection from edges and corners.

Regular replacement of this module helps to keep your Roomba operating effectively, preventing reduced cleaning efficiency due to worn or damaged brushes and motors.

2. Compatibility

This side brush module (Part Number: 4420155) is compatible with the following iRobot Roomba series models:

• iRobot Roomba 800 Series: 800, 866, 870, 871, 880, and other models in the 800 series.
• iRobot Roomba 900 Series: 960, 966, 980, and other models in the 900 series.

Please verify your Roomba model number before purchasing to ensure compatibility.

3. Installation Guide

Replacing the side brush module is a straightforward process. Follow these steps to install the new module:

1. Power Off Roomba: Ensure your iRobot Roomba is turned off and unplugged from its charging base.
2. Flip Roomba: Carefully turn your Roomba upside down on a clean, flat surface to access the underside.
3. Locate Side Brush Module: Identify the existing side brush module. It is typically secured by one or two screws.
4. Remove Old Module: Using a Phillips head screwdriver, unscrew the retaining screw(s) that hold the side brush module in place. Gently lift and remove the old module.
5. Install New Module: Position the new iRobot 4420155 Side Brush Module into the designated slot. Ensure it aligns correctly with the screw holes and electrical contacts.
6. Secure New Module: Insert and tighten the retaining screw(s) with the Phillips head screwdriver. Do not overtighten.
7. Verify Installation: Gently spin the side brush by hand to ensure it rotates freely and is securely attached.
8. Resume Operation: Flip your Roomba back over and place it on its charging base or start a cleaning cycle to confirm proper function.

Image 1: The iRobot 4420155 Side Brush Module. This module includes the motor and the three-armed side brush, ready for installation.

Image 2: Packaging for the iRobot 4420155 Side Brush Module, showing product details and SKU.

4. Operating Principles

The side brush module is a critical component of your Roomba's three-stage cleaning system. Its primary function is to sweep debris from edges, corners, and along walls into the path of the main brushes and vacuum. The integrated motor ensures consistent rotation of the brush, maximizing debris capture.

Once installed, the module operates automatically as part of the Roomba's cleaning cycle. No user intervention is required during operation.

5. Maintenance

To ensure the longevity and effectiveness of your side brush module, regular maintenance is recommended:

• Regular Cleaning: Periodically remove the side brush (it usually pulls off the spindle) and clear any hair, string, or debris that may be wrapped around the brush or its spindle. This prevents strain on the motor.
• Inspect for Wear: Check the bristles of the side brush for signs of wear, bending, or damage. If the bristles are significantly worn or deformed, the brush's effectiveness will be reduced.
• Module Replacement: The entire side brush module, including the motor, should be replaced if the brush no longer spins, makes unusual noises, or if the motor is visibly damaged. The frequency of replacement depends on usage and environment, but typically every 6-12 months for optimal performance.

6. Troubleshooting

If you encounter issues with your side brush module, consider the following troubleshooting steps:

• Brush Not Spinning:
  • Ensure the Roomba is powered on and fully charged.
  • Remove the side brush and check for any hair or debris obstructing the spindle or motor. Clean thoroughly.
  • Verify that the module is securely installed and the retaining screw(s) are tightened.
  • If the issue persists after cleaning and reinstallation, the motor within the module may be faulty, requiring replacement of the entire module.
• Unusual Noises:
  • Loud grinding or squeaking noises often indicate debris caught in the brush or motor, or a failing motor bearing.
  • Clean the brush and spindle thoroughly.
  • If the noise continues, the module may need replacement.
• Reduced Cleaning Performance:
  • Inspect the side brush bristles for wear. Worn bristles are less effective at sweeping debris.
  • Ensure the brush is spinning correctly. If it's intermittent or slow, refer to "Brush Not Spinning" troubleshooting.
  • Consider replacing the module if the brush is visibly worn or damaged.

7. Specifications

8. Warranty and Support

Information regarding the specific warranty for the iRobot 4420155 Side Brush Module is not available in the provided product data. For warranty details, please refer to the documentation included with your purchase or contact iRobot customer support directly.

For further assistance or technical support, please visit the official iRobot website or contact their customer service department.