27
28
Warning Code
Fault Discription
Suggestion
Warning 200
String fault
1. After shutdown,Check the panel is
normal.
2. If error message still exists, contact
manufacturer.
Warning 201
String PID quick connect
terminal detection error
1. After shutdown,Check the string terminal
wiring.
2. If the error message still exists, contact
the manufacturer.
Warning 202
DC SPD function
abnormal
1. After shutdown,Check the DC SPD.
2. If error message still exists,contact
manufacturer.
Warning 203
PV Circuit short
1: Check the PV1 or PV2 wiring is short-
circuited
2: If error message still exists,contact
manufacturer.
Warning 204
Dryconnect function
abnormal
1. After shutdown,Check the dry Dryconnect
wiring.
2. If the error message still exists, contact
manufacturer.
Warning 205
PV Boost driver broken
1. Restart inverter.
2. If error message still exists,contact
manufacturer.
Warning 206
AC SPD function
abnormal
1. After shutdown,Check the AC SPD.
2. If error message still exists,contact
manufacturer.
Warning 207
U disk over-current
protection
1: unplug the U disk
2: Re-access U disk after shutdown
3. If the error message still exists, contact
manufacturer.
Warning 208
DC Fuse Open
1. After shutdown,Check fuse.
2. If error message still exists, contact
manufacturer.
Warning 209
The DC input voltage is
exceeding the maximum
tolerable value.
1. Immediately disconnect the DC switch and
check the voltage
2. If the fault code still exists after the
normal voltage is restored, contact
manufacturer
Warning 210
PV Reversed
1: Check PV input terminals
2: If error message still exists,contact
manufacturer.
13.2 Syetem error
13.2.1 Warning code
Warning Code
Fault Discription
Suggestion
Warning 300
No Utility
1. Please confirm grid is lost or not.
2. If error message still exists,contact
manufacturer.
Warning 301
Grid voltage outrange
1. Check the AC voltage is in the range
of standard voltage in specification.
2. If error message still exists,contact
manufacturer.
Warning 302
Grid frequency
outrange
1. Check the frequency is in the range
of specification or not.
2. If error message still exists,contact
manufacturer.
Warning 303
EPS mode, over load
1. Please reduce the load of EPS output.
2. If error message still exists,contact
manufacturer.
Warning 304
CT Open
1:
Check if AC current sensor is connected
well.
2:
If error message still exists,contact
manufacturer.
Warning 305
SP-CT L N line reversed
or Ground fail
1:
Check the L line and N line of SP-CT is
reversed or not.
2:
If error message still exists,contact
manufacturer.
Warning 306
Communication fault
，
M3 didn't receive SP-CT
data
1:
Check communication wire
2:
If error message still exists,contact
manufacturer.
Warning 307
Communication fault
1: Check communication wire
2: If error message still exists,contact
manufacturer.
Warning 400
Fan function abnormal
1.After shutdown,Check the fan connection.
2. replace the fan.
3. If the error message still exists, contact
manufacturer.
Warning 401
Meter abnormal
1: Check if the meter is on
2: Check the machine and the meter
connection is normal .
Warning 402
Optimizer and inverter
communication is
abnorma
1. Check if the optimizer is on.
2. Check whether the connection between
the optimizer and the inverter is normal.
Warning 403
String communication
abnormal
1. After shutdown,Check the string panel
wiring.
2. If the error message still exists, contact
manufacturer .
