Sungrow SG125HX, User Manual

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79
F Fa au ulltt C Co od de e
D De essc crriip pttiio on n
C Ch he ec ckk m me etth ho od d
036
Temperature anomaly,
the temperature of the
power module is
excessively high and
out of the safe range.
1. Check whether the inverter is directly
exposed to sunlight. If so, take some
shading measures.
2. Check and clean the air ducts.
3. Check whether there is 070 (fan
anomaly) alarm via the App. If so, replace
the fans.
037
Temperature anomaly,
the temperature of the
interior of the inverter is
excessively high and
out of the safe range.
1. Check whether the inverter is directly
exposed to sunlight. If so, take some
shading measures.
2. Check and clean the air ducts.
3. Check whether there is 070 (fan
anomaly) alarm via the App. If so, replace
the fans.
038
Device anomaly
Wait for the inverter to return to normal.
Disconnect the AC and DC switches, and
reconnect the AC and DC switches 15
minutes later to restart the inverter.
If the fault still exists, contact SUNGROW.
039
Low system insulation
resistance, which is
generally caused by
poor insulation to
ground of the module/
cable or by rainy and
damp environment.
Wait for the inverter to return to normal. If
the fault occurs repeatedly:
1. Check whether the ISO resistance
protection value is excessively high via the
App, and ensure that it complies with the
local regulations.
2. Check the resistance to ground of the
string and DC cable. Take correction
measures in case of short circuit or
damaged insulation layer.
3. If the cable is normal and the fault occurs
on rainy days, check it again when the
weather turns fine.
4. If the fault is not caused by the foregoing
reasons and still exists, contact SUNGROW.
User Manual 9 Troubleshooting and Maintenance