TROUBLESHOOTING – SPECIFICATIONS
For all other issues, contact authorized dealer or Firman customer service.
21
Error code
Cause
Troubleshooting
01
Over current or short-circuit of USB1~USB4
Check whether the output port is
overloaded or short-circuited
02
Over current or short-circuit of USB-C1(99W)
Check whether the output port is
overloaded or short-circuited
03
Over current or short-circuit of USB-C2(99W)
Check whether the output port is
overloaded or short-circuited
04
Over current or short-circuit of DC-12V Cigarette
Lighter & DC5521
Check whether the output port is
overloaded or short-circuited
05
Overcurrent protection of inverter
Overload protection of inverter
Short-circuit protection of inverter
Over-voltage protection of inverter
Overload of AC output (grid mode)
Check whether the output port is
overloaded or short-circuited
06
Check whether the output port is
overloaded or short-circuited
Over-temperature protection of inverter
07
High-temperature protection of battery(discharge)
Low-temperature protection of battery(discharge)
High-temperature protection of battery(charge)
Low-temperature protection of battery(charge)
Abnormal communication of battery
Check whether the ambient
temperature is in the working
temperature for the Portable
Power Station.
08
Abnormal input voltage (EC5)
Output over-power (EC5)
Output overcurrent (EC5)
Over temperature (EC5)
Abnormal communication (EC5)
Check whether the input voltage
meets the input range requirements.
09
Over-voltage protection of the system
Disconnect the input power source.
10
Under-voltage protection of the system
The system will automatically cut off
all outputs.
11
Overload protection of the system Over-
temperature protection of DC module
Check whether the output power
exceeds the maximum allowable value.
English Customer Service: 1-844-FIRMAN1
