Specifications
PV Powered LLC  24  11-18-28-704 
4.0 TROUBLESHOOTING 
If the StarInverter’s “STAND BY” LED remains red for a prolonged period (longer than the 
5 minute timer required by code), and all of the operating parameters are within 
specification (see system specifications), the AC breaker or AC disconnect should be 
turned to the OFF position for 1 minute and then returned to the ON position. If the DC 
and AC voltage levels are within specification, the red “STAND BY” LED will not be 
illuminated. The green “OK” LED will be illuminated and the inverter will produce power 
after 5 minutes. If the red “STAND BY” light remains illuminated, double-check all 
connections and voltage levels. If the red “STAND BY” light is still illuminated, contact 
your authorized dealer/distributor for product support. 
In addition to the above fault indicators, the PVP Command Center software will indicate 
system status. If a fault has occurred, a fault message as well as the corresponding code 
will be displayed. 
The vacuum fluorescent display (models PVP1800 and PVP2800) will provide the following 
codes when a fault has occurred: 
First Code:
PDPA FAULT  0x8000  power module generated fault 
VOLTAGE FAULT      0x1000  Code 3 will contain further information 
GROUND FAULT      0x0400 
LOW POWER FAULT  0x0200  array power too low for max power 
    tracking 
CPU LOAD FAULT      0x0100 software overload 
OVERCURRENT FAULT    0x0040 
PRECHARGE FAULT  0x0020 
HEATSINK TEMP FAULT    0x0004 
AMBIENT TEMP FAULT    0x0001 
Second Code:
      0x0000  will always remain zero 
Third Code: (Voltage Faults)
PLL FAULT  0x0400  AC voltage sensing missing per UL 
AC OVERVOLTAGE FAULT  0x0200 
AC UNDERVOLTAGE FAULT  0x0100 
AC FREQUENCY FAULT    0x0080 
DC UNDERVOLTAGE FAULT  0x0020  array voltage too low 
DC OVERVOLTAGE FAULT   0x0010 
P15 FAULT  0x0002  +15V supply out of specifications 
PS FAULT  0x0001  +5V supply out of specifications 
As indicated above, there are three 16-bit codes assigned to describe faults, one of which 
will always remain zero. More than one fault can be represented at a time. This will be 
indicated by a fault with a code equal to the sum of the individual faults. 










