Problem 1

No AC output – Yellow & Green LED lit

• DC input is below 10.8 Vdc
  • Recharge or replace your vehicle’s battery

Problem 2

No AC output – Red & Green LED lit

• Short circuit
  • Disconnect power inverter from the load
• Overload
  • Reduce the load on the power inverter
• Power Inverter hot
  • Disconnect the load and operate the power inverter for a few minutes

Problem 3

No AC output – Green LED not lit

• Bad connection or wiring
  • Tighten all the DC connections

Problem 4

Buzzer Alarm

• Low battery or high battery voltage
  • Recharge the battery or check your vehicle’s battery voltage

Problem 5

Motorized power tool will not operate

• Excessive startup load. If the startup load exceeds the inverter peak load capability it will not work.
  • Disconnect the load until the power inverter operates normally and connect the load again

The AI series includes the CPS200AI, CPS400AI, and the CPS750AI