iRobot Roomba 786 (PET) – Plus.Parts® Maintenance Set

The iRobot Roomba 786 (PET) is the pet-designated variant of the top-tier 700 platform, mechanically identical to the Roomba 785 but shipped with additional spare consumables in the box. It carries the touch-LCD display, SoftTouch keypad, optical bin sensors, and the XLife 14.4 V lithium-ion battery. The consumable maintenance set fits every 700-series model without modification.

This set supplies Plus.Parts® direct-fit alternatives to the original iRobot parts: a set of main brushes, 3 side brushes, 6 HEPA-style filters and 2 cleaning tools – 13 parts in all. The full-bin indicator on the 786 (PET) is driven by the two optical bin sensors inside the bin chamber. In a pet household, these sensors accumulate a residue film faster because pet dander and fine hair produce a dustier airflow through the AeroVac bin. A fine residue on either optical window lowers the debris threshold at which the full-bin indicator fires, causing the robot to return to dock with a bin well under half full. The fix is straightforward: remove the bin, locate the two small optical windows inside the chamber, and wipe each with a melamine foam eraser. A clean sensor is visibly clear; a filmed sensor looks dull or slightly opaque. In a shedding household, clean the optical sensors weekly rather than fortnightly. The XLife battery’s longer runtime amplifies the impact of a premature full-bin return: a shortened cycle on a top-tier unit wastes proportionally more battery capacity per interrupted session than on a shorter-running NiMH model. Keeping the sensors clean maximises the usable cleaning time per charge and extends the effective battery life by reducing unnecessary charge-discharge cycles.

Behind the set is a real team at VacuumReviews.eu, so if premature full-bin alerts persist despite clean sensors, contact us and we can help check whether the bin chamber seal or airflow path needs attention.

At a glance

• Direct-Fit Compatibility – Every part seats into the iRobot Roomba 786 (PET) chassis without modification.
• Complete Coverage – 13 parts refresh the full wear layer, with six filters covering twelve months of use at the pet-household two-month replacement cadence.
• Responsive Support – VacuumReviews.eu can help diagnose false full-bin alerts and recommend a sensor-cleaning frequency matched to your pet count.