If your iRobot Roomba Combo i5 won't start cleaning when you press the button or schedule a job, you're not alone. This issue can stem from power problems, dirty sensors, software glitches, or docking station failures. The good news is that most causes are easy to fix at home without tools. Follow this guide to diagnose why your iRobot Roomba Combo i5 won't start cleaning and get it back to keeping your floors spotless.
Quick Troubleshooting Steps
1
Check the Battery Charge: Press the Clean button and look for the battery indicator light. If it's red or off, place your Roomba Combo i5 on the Home Base and ensure the charging contacts align properly. Wait at least 3 hours for a full charge. A depleted battery is the most common reason an iRobot Roomba Combo i5 won't start cleaning.
2
Clean the Charging Contacts: Power off the robot and wipe both the contacts on the robot's underside and the Home Base with a dry microfiber cloth. Built-up grime prevents proper charging, which stops cleaning cycles from initiating. For stubborn residue, slightly dampen the cloth with isopropyl alcohol.
3
Inspect and Empty the Bin: Remove the dust bin and empty all debris. Check that the bin filter is seated correctly and isn't clogged. The Roomba Combo i5 has a full-bin sensor that may block cleaning if it detects blockage or if the bin is missing from its slot.
4
Restart the Robot: Press and hold the Clean button for 20 seconds until you hear a tone. Release and wait for the reboot sequence to complete. This clears temporary software errors that can prevent your iRobot Roomba Combo i5 from starting cleaning jobs scheduled through the iRobot Home app.
5
Verify Home Base Placement: Ensure the Home Base sits on a hard, level surface against a wall with at least 1.5 feet of clearance on both sides and 4 feet in front. Poor placement causes docking failures, leaving the robot unable to charge or start cleaning cycles automatically.
6
Update Firmware and Check App Settings: Open the iRobot Home app, go to Settings > About (Your Robot), and install any pending updates. Confirm that Do Not Disturb hours aren't blocking your scheduled cleans and that the robot shows "Ready to Clean" status.
Warning: Never submerge your Roomba Combo i5 or its Home Base in water. The mopping tank must be emptied after each use, but liquid exposure to electronics causes permanent damage and voids warranty coverage. If you smell burning or see damaged wiring, stop using the device immediately.
When to Seek Professional Repair
If you've completed all steps above and your iRobot Roomba Combo i5 won't start cleaning, the problem may involve internal hardware. Failed charging circuits, damaged motherboard components, or degraded lithium-ion batteries typically require specialized diagnosis. Attempting to disassemble the robot yourself risks further damage and voids remaining warranty protection.
Still Need Help With Your iRobot Device?
If these steps didn't resolve the won't start cleaning issue, our certified technicians can help.
Why does my Roomba Combo i5 beep but not start cleaning?
This usually indicates a specific error code. Count the beeps: 2 beeps mean the main brushes are stuck, 5 beeps signal a side wheel problem, and 9 beeps indicate a dirty bumper. Address the corresponding component and try again.
Can a dirty mopping pad prevent the Roomba Combo i5 from starting?
Yes. If the mopping pad is excessively soiled or improperly attached, internal sensors may halt operation. Remove the pad, rinse it thoroughly, let it dry completely, and reinstall it firmly on the pad mount.
How long should the Roomba Combo i5 battery last before replacement?
With regular use, the original battery typically maintains good performance for 18-24 months. If your robot holds charge for less than 30 minutes or fails to start cleaning even after extended charging, battery replacement is likely needed.