Sungrow SG2K-S Quick User Manual

Quick User Manual 6 Troubleshooting
23
Code
Description
Troubleshooting
037
The internal
temperature of inverter
is too high.
moment for inverter recovery.
2. Check whether there is enough space for
convection.
3. Check whether the inverter is in direct
sunlight.
4. Check whether the fan is normal.
Replace it if necessary.
5. Clean the air inlets.
6. If the fault persists, please contact
Sungrow.
038
Relay fault on the grid
side.
1. Wait a moment for inverter recovery.
2. If the fault occurs repeatedly, contact
Sungrow Service Dept.
039
The insulation
resistance is low.
(ISO-flt)
1. Check whether there is a reliable inverter
grounding line.
2. Check whether the positive and negative
of PV panels is short-circuited with ground
lead.
3. Wait a moment for inverter recovery.
4. If the fault occurs repeatedly, contact
Sungrow Service Dept.
041
Leakage current
sampling fault.
1. Wait a moment for inverter recovery.
2. If the fault occurs repeatedly, contact
Sungrow Service Dept.
043
Inner
under-temperature
fault.
The ambient
temperature inside the
inverter is too low.
The inverter will recover once the ambient
temperature rises above -25℃.
044
Open-loop inverter
self-test fault.
1. Wait a moment for inverter recovery.
2. If the fault occurs repeatedly, contact
Sungrow Service Dept.
045
PV1 boost circuit fault.
046
PV2 boost circuit fault.
048
Phase current
sampling fault.
053
The slave DSP detects
that the grid voltage
exceeds the protective
value.
1. Check the grid voltage.
2. If the grid voltage exceeds the
permissible range of inverter protection
parameters, ask utility grid company for
solution.
3. If the grid voltage is within the permissible
range, contact Sungrow Service Dept.

Sungrow SG2K-S Specifications

General

Brand	Sungrow
Model	SG2K-S
Category	Inverter
Language	English