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14
https://www.altonindustries.com
Fault Code Table
Error Code
Causes
Solutions
E2
Rechargeable battery
voltage is too low
Replace the battery
Battery disconnect
Replace battery
E1
E3
Rechargeable battery
voltage abnormal
Replace the battery
E4
Temperature control of
battery is abnormal
Replace the battery
E5
High discharging
temperature
Battery pack over temperature, do not use
until the battery temperature is restored
E6
High charging temperature
Battery pack over temperature, do not charge
until the battery temperature is restored
E7
Low charging temperature
Make sure the ambient temperature is
above 5℃
F1
Charging over-current
Please confirm whether the charger is
original
F2
Short-circuit protection
Please contact customer service
F3
Discharge Over-current
Please contact customer service
F4
Roller brush discharge
Over-current
Check whether there is any foreign body to
be cleaned at the roller brush. If the fault
still exists, please contact customer service
F6
No dirty water installed
Install dirty tank before use
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