iRobot Roomba · updated 2026-07-06

Error 26: Insufficient vacuum airflow

What it means

Airflow through the vacuum path is too low.

The fix

Clean or replace the filter and reboot. If it persists, the Cleaning Head Module may need replacement.

Applies to

i and j Series, Combo 10 Max

Source

Official iRobot support article: https://homesupport.irobot.com/s/article/2416

Fix didn't take? Charging-family errors that recur usually mean the battery — see the charging-errors guide. For anything deeper, here's who actually repairs Roombas in 2026, with published prices.