Roomba’s Not Charging? Here Are The Possible Reasons And How To Solve Them

Roomba vacuum cleaners are the best in their field. It is a robotic vacuum, made by iRobot. They’re small, efficient, and easy to use. But sometimes they just stop charging.

If your Roomba fails to charge, this could be the result of one of several issues. This may be caused by too much dirt, dust, or gunk on the charging points or caster wheel. The issue could also be from a faulty power outlet, an improperly placed battery, or various system bugs. It could sometimes just be due to a temperature error.

Unfortunately, For a Roomba to do its thing, especially in a larger room, it needs to be charged, the iRobot Roomba lasts long enough on a charge to clean a room before heading back to its charging station, but what if you are having trouble fully charging the robot?

In this article, We will point out several issues that could be preventing your Roomba from charging, and explain how you can fix these issues.

iRobot Roomba i7
iRobot Roomba i7

3 Possible Reasons Why Your Roomba Isn’t Charging And How To Fix It

1. Charging Contacts Are Dirty

The Roomba and the charging station for the Roomba both have contact points that allow power to transfer from the station to the Roomba. The contact points are two small metal strips and power can only be transferred if the strips on either one or both of them touch.

Why It’s Faulty

If there is dirt on either the Roomba or its charging station, they won’t be able to fully connect. The contact points on the Roomba are particularly susceptible to this because they are located near the brushes. This also means that dust and dirt ofter get hidden up onto the contact points.

How To Fix It

Cleaning the contact points on your Roomba alongside its charging station is quite easy. In most cases, dirty charging contact is responsible for uncharged Roombas. There are a few methods you can try to clean your contact points if your Roomba is failing to charge itself.

  • Use a dry cloth for smaller, non-greasy stains but if that doesn’t work, try a damp cloth with a bit of rubbing alcohol.
  • If neither of the options above works, you can use something more abrasive like a steel wool sponge.

Be sure to unplug the charging station from the wall before using liquid or steam to clean the charging station. This can prevent harmful electric shocks.

2. Faulty Charging Station

The Roomba charging station is necessary for your Roomba to charge itself. You can still charge your Roomba without the charging station but the station needs to be there or it won’t charge automatically.

Why It’s Faulty

Roomba’s charging station sometimes fails for an unknown reason, but it might be because there are dirty contacts in the charging station as we’ve already discussed, or because power cannot get to the charger.

How To Solve It

Determine whether it’s the Roomba, the charging station, or an outlet that you need to fix.

  • Sometimes, a GFCI outlet is tripped or the charging station may have tripped the circuit breaker connected to that outlet.
  • It is important that the charging station’s plug is fully inserted into the outlet.
  • If you are sure that the outlet isn’t the issue, you can test by plugging your Roomba directly into the outlet.
  • If the Roomba lights up when you do this, it indicates a problem with your charging station.
  • If the charging station is dead, it will most likely need to be replaced by iRobot.
  • If your Roomba is under warranty, you may be able to get it replaced for free.

3. Faulty Roomba Battery

The battery in the Roomba is what charges and runs the vacuum. Specifically, Roombas use rechargeable Ni-MH (nickel metal hydride) batteries.

According to iRobot, your Roomba should have about two hours of battery life that should last 400 cycles.

Why It Is Faulty

Roomba batteries fail when they get too old, but there are other factors that can also cause your Roomba to die unexpectedly.

  • Too much exposure to sunlight has the potential to ruin your battery and make Roomba stop working.
  • If you do not clean your Roomba brush, its battery will wear out quickly and faster than normal.
  • The more pressure you put on the Roomba’s brushes, the more power is needed to turn them and the shorter your Roomba’s battery life becomes.

How To Solve It

The battery on a Roomba can easily die and will need to be replaced. Fortunately, replacement batteries are readily available from iRobot, and replacing the battery is itself a very easy task.

  • Step one- remove the five screws that keep the bottom cover in place, four of which are holding the cover in place and one holds the brush in place.
  • With the screws removed, remove the cover and expose the battery. You can then release the tabs in order to pull the battery out.
  • All you need to do is insert the new battery and reassemble your Roomba.
  • Also, to preserve the condition of your battery, keep it out of direct sunlight and in a cool, dry place. You should also clean out its brushes at least once every week and to limit how often you charge the battery.

4. Dirty Caster Wheel

The caster wheel is the front small wheel near the Roomba. It isn’t powered and doesn’t provide any steering. Its only purpose is to keep your robot elevated.

Why It Is Faulty

Over time, debris can clog the caster wheel well and push the wheel out of its housing. When this happens, the Roomba will lift up and not be able to charge when it’s on the charging station.

How To Solve It

Taking off the caster wheel of your Roomba is simple. To get to the caster, simply attach a firm grip to the wheel and pull it out. Once you have removed the caster wheel, clean out any debris inside that you find before reattaching it back in place. Your Roomba should be up and running again soon.

5. Temperature Error

Your Roomba won’t start if the battery is either too hot or too cold. The Roomba will give an error code, which means the Roomba is not working because of a battery problem. Code 7 means the battery is too cold while Code 6 means the battery is too warm.

Why It Is Faulty

The only time your Roomba will encounter high and low temperatures is if you keep it in a room with an excessively high or low temperature. If you’re keeping it in your house, which is most likely the case, there’s a good chance you’ll never run into this issue.

How To Solve It

  • To fix a Roomba temperature code error, move the Roomba to an area hotter or colder than the one you’re in and let it sit there for an hour.
  • If you think that your recent problems are due to extreme temperatures, try this and it should do the trick.
  • If you can, placing your charging station in an area of your house where it is less likely to become very hot or cold can help extend the lifespan of your battery.

6. Battery Pull Tab

Similar to a lot of other electronics, A Roomba comes from the factory with a battery pull tab. The battery pull tab blocks the contacts on Roomba so that it does not start running before it is purchased and set up.

Why It Fails

This is more of a mistake on the customer’s part. If you are new to Roomba, you might not know right away that the battery tab needs to be pulled out before the Roomba will run.

How To Fix It

  • Flip the Roomba over and check whether the yellow tab is still in place.
  • If it is still in place, pull it out.
  • Your Roomba is all good to go and should work fine now.

In Conclusion

With little time and expenditure, most of these issues can be fixed with relative ease. Knowing how to solve any issue while your Roomba is acting up is crucial to preventing problems in the future.

Hopefully, this article was able to help you out and get your iRobot Roomba charged up again.

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