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Troubleshooting Reference for the PROwatt SW 1000
Sine Wave Inverter
Troubleshooting Reference
Condition
Possible Cause
Solution
E01
Under voltage shutdown
Recharge battery and check
connections
E01 with persistent low
battery alarm
Poor DC wiring/ battery
condition
Use proper and secure wiring;
charge or install new battery
E02
Over voltage shutdown
Check if connected to 12 V
battery system
E03
Overload shutdown
Reduce load
E04 with heavy load
connected
Over temperature shutdown
Cool down inverter and reduce
load
E04 with normal load
connected
Over temperature shutdown
Improve ventilation
E10 no output voltage
Short circuit; heavy load;
output circuit overheat
Check for short circuit; remove
load; turn unit off and cool
No output voltage; no
voltage indication
Unit is off; No power to
inverter; Inverter fuse open;
Reverse DC polarity
Turn device on; check wiring;
replace fuse if necessary; check
polarity
Unit is on but no AC output
GFCI device tripped
Reset the GCFI
Table A.3
: Power Inverter Troubleshooting Reference