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6. Trouble Shooting
Status
LED Indicator
Slow Blink
Green
Fast Blink
Slow Blink
Orange
Fast Blink
Solid
Slow Blink
Fast Blink
Red
Solid
38
Buzzer states
Status
Over Temperature
Two Short
Protection (OTP)
Under
One Short
Temperature
Protection (UTP)
Grid Over / Under
N/A
Voltage Protection
Grid Over Current
N/A
Protect
Phase or
N/A
Frequency Failure
Battery Under
Four Short
Voltage Protection
Battery Over
Three Short
Voltage Protection
Over Load
Five Short
(101%~115%)
Protection
Over Load
(>115%) /
N/A
Short Circuit
Protection
：
Table 16
INV./CHR. Mode Trouble Shooting
Solution
1. Improve ventilation. Make sure
ventilation openings in inverter are not
obstructed.
2. Reduce ambient temperature.
1. Increase ambient temperature.
1. Make sure AC input is within 90Vac ~
132Vac (110V system) or
180Vac~264Vac (220V system).
1. Turn off the load and make sure there
is no short circuit inside the load circuit.
2. Check the setup value of AC input
current limit (Dip Switch S4,S5,S6).
3. Re-turn on the unit manually.
1. Make sure AC input frequency matches
the Unit output frequency.
1. Check DC input voltage. Increase DC
input voltage.
2. Check DC input connection and wring
cable.
3. Recharge battery.
1. Check DC input voltage. Reduce DC
input voltage.
1. Reduce load in case of restart failed.
2. Re-turn on the unit manually.
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