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016
Output overload
The PV modules power
is extremely large and
out of the normal
operation range of the
inverter.
1. Wait for the inverter to recover.
2. If the alarm persists, contact SUNGROW.
017
Grid voltage unbalance
Unbalanced three-
phase grid voltage is
detected.
Generally, the inverter will be reconnected to
the grid after the grid recovers. If the alarm
occurs frequently:
1. Measure the grid voltage. If grid phase
voltage differs greatly, contact the utility grid
company for solutions.
2. If the voltage difference between the three
phases is within the permissible range of the
local utility grid company, modify the
parameter setting through the App.
3. If the alarm persists, contact SUNGROW.
019-022
024-025
030-034
Device abnormal
1. Wait for the inverter to recover.
2. Disconnect the AC and DC switches or
circuit breakers, and connect them again after
15 minutes.
3. If the alarm persists, contact SUNGROW.
036
Overtemperature
The temperature inside
the inverter is extremely
high and out of the
permissible 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 the alarm 070 (fan alarm)
occurs through the App. If so, replace the
faulty fan.
037
High ambient
temperature
The ambient
temperature is
extremely high and out
of the permissible
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 the alarm 070 (fan alarm)
occurs through the App. If so, replace the
faulty fan.
User Manual
