MAXOAK BLUETTI AC20, User Manual

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EN-07
Error
codes
Cause Solution
E01
Over-temperature protection
(System)
Check whether the ambient temperature is
higher than 40°C. When the temperature cools
down, the output will be turned on again.
E02
Over-voltage protection
(Battery)
Disconnect the product from power source to
stop charging and restart it.
E03 Battery damage protection Contact seller customer service.
E10
SOC (state of charge)
protection
Charge the product in time and restart it after
fully charged.
E11
Battery low-voltage
protection
Charge the product in time and restart it after
fully charged.
E12
Inverter over-current
protection
Check whether the AC output port get
overloaded or short-circuited.
E13 Inverter over-load protection
Check whether the AC output get overloaded,
please refer to the ‘Product Specifications’
section for overload capacity.
E14
Inverter short-circuit
protection
Check whether the AC output port get
overloaded or short circuited.
E16
Invert over-voltage
protection
Check whether the input voltage exceeds the
maximum input voltage.
E17
Charging low-temperature
protection
The temperature of the battery is too
low. Restore the battery by increasing its
temperature.
E21
12V10A output over-current
protection
Check whether the output port get overloaded
or short-circuited.
E22
12V10A output over-load
protection
Check whether the output port get overloaded
or short-circuited.
E27
Total output power over-load
protection
Reduce the load power.
Trouble-shooting
Note: If DC 12V output port is overloaded or short-circuited, BMS protection may be
triggered. As a result, the product will shut down and cannot be turned on. In this case,
you need to charge the product to activate it.