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How to fix an inverter that is not able to wake up or is stuck in sleep mode?

Stuck in wake up or sleep mode

Product Line:
GT100 & GT250


Power supply fuses or power supply

Note: The work instruction provided is meant for those who are qualified to work on the inverter. This means that they should know how to properly Lock out and Tag Out (LOTO) the inverter..., etc.

The AC and DC contactor on GT100 & GT250 can turn on and off by using the 48 VDC power supply. If the fuses in front of the power supply are blown, then no AC power is available for the power supply to tell the contactor to open or close. In this case, the DC contactor will stay open even though the array voltages are high enough for the contactor to close (above 420 VDC). If the power supply is good, you need to replace these fuses.

GT100-208 Inverter: Replace F15 & F16 6-Amp fuses.

GT100-480 & GT250-480 Inverters: Replace F15, F16 & F17 if they are blown. They are 3 Amp fuses.
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