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Charging Error One (1). Check that Roomba’s battery is installed. Open the iRobot HOME App for help.
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Roomba® does not detect a battery. Please remove and reinstall the battery.
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Battery detection - Charging Error 1
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Charging Error Two (2). Please open the iRobot HOME App for help.
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A charge fault has been detected. Please confirm that you are using an authentic iRobot® Lithium-Ion battery, and check for liquid damage.
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Over-current - Charging Error 2
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Charging Error Three (3). Please open the iRobot HOME App for help.
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A charge fault has been detected. Please try charging again. Check for liquid damage.
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Charging system - Roomba Charging Error 3
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Charging Error Four (4) and Five (5).
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A low current fault has been detected with the dock or the robot. Please clean the charging contacts.
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No/Low current - Charging Error 4 and 5
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Charging Error Six (6) and Seven (7). Please open the iRobot HOME App for help.
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Roomba®'s battery is either too warm or too cold for charging. Ensure the robot is at room temperature and try again.
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Too hot/cold temp - Charging Error 6 and 7
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Charging Error Eight (8). Please open the iRobot HOME App for help.
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Roomba® cannot communicate with its battery. Ensure the battery is iRobot® Authentic. Remove, then reinstall.
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Battery comm fault - Charging Error 8
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Charging Error Nine (9). Please open the iRobot HOME App for help.
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A battery failure has been detected. The battery may need to be replaced. Ensure the battery is iRobot® Authentic. Remove, then reinstall.
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Battery fault - Charging Error 9
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Charging Error Eleven (11). Please open the iRobot HOME App for help.
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A battery failure has been detected. The battery may need to be replaced. Ensure the battery is iRobot® Authentic. Remove, then reinstall.
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Battery hardware fault - Charging Error 11
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Charging Error Seventeen (17). Please open the iRobot HOME App for help.
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The battery may not be iRobot® Authentic. Confirm you are using an authentic iRobot® battery. Remove, then reinstall.
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Battery auth - Charging Error 17
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Charging Error Nineteen (19). Please open the iRobot HOME App for help.
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Charging timed out. Remove and reinstallthe battery to clear. Clean charging contacts.
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Charge timeout - Charging Error 19
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Charging Error Twenty (20). Please open the iRobot HOME App for help.
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Battery fault or battery not ready to charge. Remove the battery for 15 minutes — then reinstall. If the error persists, the battery may need to be replaced.
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Battery fault - Charging Error 20
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Charging Error Twenty-One (21). Please open the iRobot HOME App for help.
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The robot docked but was unable to charge. Clean the charging contacts.
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Loosing charge - Charging Error 21
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Charging Error 101. Please open the Roomba® Home App for help.
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Roomba® does not detect a battery. Please remove and reinstall the battery.
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Battery detection - Charging Error 101
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Charging Error 102. Please open the Roomba® Home App for help.
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A charge fault has been detected. Please confirm that you are using an authentic iRobot® Lithium-Ion battery, and check for liquid damage.
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Over-current - Charging Error 102
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Charging Error 103. Please open the Roomba® Home App for help.
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A charge fault has been detected. Please try charging again. Check for liquid damage.
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Charging system - Charging Error 103
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Charging Error 104. Please open the Roomba® Home App for help.
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No electrical current has been detected with the dock or the robot. Please clean the charging contacts.
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No current - Charging Error 104
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Charging Error 105. Please open the Roomba® Home App for help.
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A low electrical current has been detected with the dock or the robot. Please clean the charging contacts.
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Low current - Charging Error 105
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Charging Error 106. Please open the Roomba® Home App for help.
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Roomba®'s battery is too warm for charging. Ensure the robot is at room temperature and try again.
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Temp too warm - Charging Error 106
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Charging Error 107. Please open the Roomba® Home App for help.
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Roomba®'s battery is too cold for charging. Ensure the robot is at room temperature and try again.
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Temp too cold - Charging Error 107
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Charging Error 109. Please open the Roomba® Home App for help.
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A battery failure has been detected. The battery may need to be replaced. Ensure the battery is iRobot® Authentic. Remove, then reinstall.
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Battery fault - Charging Error 109
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Charging Error 110. Please open the Roomba® Home App for help.
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Battery cell imbalance. All cells will not reach full charge.
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Cell imbalance - Charging Error 110
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Charging Error 111. Please open the Roomba® Home App for help.
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A battery failure has been detected. The battery may need to be replaced. Ensure the battery is iRobot® Authentic. Remove, then reinstall.
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Battery hardware fault - Charging Error 111
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Charging Error 114. Please open the Roomba® Home App for help.
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Internal battery failure. Replace battery.
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Internal error - Charging Error 114
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Charging Error 115. Please open the Roomba® Home App for help.
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Cell failure during charging.
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Cell failure - Charging Error 115
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Charging Error 117. Please open the Roomba® Home App for help.
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The battery may not be iRobot® Authentic. Confirm you are using an authentic iRobot® battery. Remove, then reinstall.
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Battery auth - Charging Error 117
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Charging Error 119. Please open the Roomba® Home App for help.
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Charging timed out. Remove and reinstall the battery to clear. Clean charging contacts.
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Charge timeout - Charging Error 119
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Charging Error 120. Please open the Roomba® Home App for help.
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Battery fault or battery not ready to charge. Remove the battery for 15 minutes — then reinstall. If the error persists, the battery may need to be replaced.
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Battery fault - Charging Error 120
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Charging Error 121. Please open the Roomba® Home App for help.
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The robot docked but was unable to charge. Clean the charging contacts.
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Losing charge - Charging Error 121
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