Growatt MAX 50KTL3 LV, Installation & Operation Manual

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Warning Description Suggestion
Warning 100 Fan abnormal Contact Growatt
Warning 103 NTC Broken Contact Growatt
Warning 104
DSP and COM firmware
version unmatch
Contact Growatt
Warning 105 Over Temperature Contact Growatt
Warning 106 SPD abnormal Contact Growatt
Warning 107 NE abnormal
Check if the neutral and ground
cables are well connected and firm
Warning 108 PV Circuit short Contact Growatt
Warning 109 PV boost driver broken Contact Growatt
Warning 110 String abnormal
Check if the polarity is `reversed or
short
Warning 111
U disk overcurrent
protection Check if the USB port is connected
to a short circuit
Warning 112 Contact Growatt
Notice
：
MAX series inverter has three external fans and one Internal fan.
If the suggestions do not work, please contact to Growatt.
9
.
2
.
2 Error
Errors codes identify a possible equipment failure, fault or incorrect inverter setting or
configuration, any or all attempts to correct or clear a fault must be performed by
qualified personnel.
Typically, the error code can be cleared once the cause or fault is removed.
Some of error code as table shows below, may indicate a fatal error and require you to
contact the supplier or Growatt for help.
Countercurrent prevention or
Reactive power dispatching
failure alarm
Error Code Description Suggestion
Error 101 Communication error Contact Growatt
Error 102
Sample of main DSP and
slave DSP are inconsistent
Contact Growatt
Error 106 PV CurrSample Fault Contact Growatt
Error 107 AC CurrSample Fault Contact Growatt
Error 108 SPS Power Fault Contact Growatt
Error 110
Current over limit
Contact Growatt
Error 112 AFCI Fault Contact Growatt
Error 113 IGBT drive fault Contact Growatt
Error 114 AFCI Module check fail Contact Growatt
Error 117 Relay fault Contact Growatt
Error 120 Contact Growatt
Error 121 CPLD abnormal Contact Growatt
Error 122 Bus Fault Contact Growatt
Error 124 No AC connection
Error 125 PV isolation low
Error 126 Leakage current too high Contact Growatt
Error 127 Output DC current too high Contact Growatt
Error 128 PV voltage high Check PV actual voltage
Error 129 Grid voltage fault
Error 130 Grid frequency fault Check the actual frequency of the grid
Check if the mains connection/mains
voltage and frequency are correct
Check panel and line insulation to
ground is good
Check the actual voltage and wiring of
the grid
N - PE fault detection
(PV - ground machine)