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This chapter shows the motherboard and all its connections for the Roomba Discovery 4XXX/4XX series, pictured below. Please refer to this document when carrying out any repair or service of your Roomba. It will be helpful if you have disconnected connections to the motherboard and are uncertain where they all go. Top of Motherboard 1 […]

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Roomba 4000 Motherboard

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This guide will explain how to replace the cliff sensors on your Roomba Discovery 4XXX/4XX series, pictured below: 12.1          Cliff Sensors Replacement Roomba replacement cliff sensors can be found at RobotShop. Removal Phase 1 – Remove any glue holding the caster wheel wires in place. 2 – Unscrew screws (A). 3 – […]

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This guide will explain how to replace the drive wheel on a Roomba Discovery 4XXX/4XX series, pictured below: 11.1          Drive Wheel Replacement Roomba replacement drive wheel can be found at RobotShop. Removal Phase 1 - Remove the wheel spring from the side motor holder. 2 - Remove the side charging socket. 3 – Unscrew […]

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This guide explains how to replace the front caster wheel drop switch on a non-swivel Roomba Discovery 4XXX/4XX series, pictured below: 10.1          Caster Wheel Drop Switch Replacement Roomba replacement caster wheel drop switch can be found at RobotShop. Removal Phase 1 – Unscrew screws (A). 2 – Remove any glue holding […]

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This guide explains how to replace the front caster wheel on a non-swivel Roomba Discovery 4XXX/4XX series, pictured below: 9.1          Caster Wheel Replacement Roomba replacement caster wheels can be found at RobotShop. Removal Phase 1 – Unscrew both caster wheel holders. 2 – Remove any glue holding the purple caster wheel wire. […]

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This guide will explain how to change the side brush motor gear assembly on your Roomba Discovery 4XXX/4XX series, pictured below: 8.1         Side Brush Gear Assembly Replacement Roomba replacement side brush gear assembly can be found at RobotShop. Removal Phase 1 –           Remove the spring from the side brush motor holder. […]

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This guide explains how to change the side brush motor on your Roomba Discovery 4XXX/4XX series, pictured below: 7.1         Side Brush Motor Replacement Roomba replacement side brush motor can be found at RobotShop. Removal Phase 1 –          Remove the wheel spring from the side motor holder. 2 –       […]

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This guide explains how to replace the speaker on your Roomba Discovery 4XXX/4XX series, pictured below: 6.1        Speaker Replacement Roomba replacement speaker can be found at RobotShop. Removal Phase 1 –          Remove the speaker from its socket by lifting it with a screwdriver or pliers. 2 –         Using wire cutters, […]

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