Follow these steps
No indicator or voltage LEDs on, or the 10-11 VDC LED on when the Battery Voltage “Push to test” button is pressed.
Press the Battery Voltage “Push to test” button on the inverter status panel.
If no voltage LEDs on or the 10-11 VDC LED on indicates a DC input power problem from the battery(s) call Dimensions for assistance.
If the voltage LEDs indicate a voltage 11-12 VDC or greater, the fault lies in the optional remote on/off circuit, continue with step B below (if the inverter doesn’t have a remote on/off circuit, call Dimensions for assistance).
Locate the small violet wire in the front of the inverter. Disconnect the violet wire from the external remote switch circuit. Connect the violet inverter wire to the large positive DC input lug in the front of the inverter.
If the inverter powers on, the fault exists in the remote on/off circuit. Possible problems include: a failed remote circuit fuse, a defective switch, a defective isolation relay in the circuit or open wiring anywhere in the remote on/off circuit to the inverter. Correct the fault and retest.
If the inverter does not power on, a very low or zero volt input voltage probably exists.
Visually inspect or remove and measure the resistance of the battery cable fuses for evidence of failure.
Replace any defective fuse with the same rating fuse and retest the system. Note: Repeated fuse failures are probably caused by either a positive cable shorted to ground (chassis) in the battery system or poor battery cable connections. Locate and correct the short or poor connection then retest the system.
If no fuse is defective, the battery/charging system is suspect. Perform the steps in Appendixes A, B and C (Troubleshooting batteries, regulators and alternators).
Low input voltage indicator LED on.
Note: Failures can be caused by one or more of the following: a failed or under-rated alternator and/or failed alternator regulator, inoperative engine high idler, weak batteries or poor battery wiring connections. The least likely part to have failed is the inverter.
Switch the inverter off for 5 seconds, press and hold the inverter’s Battery Voltage “Push to test” button, switch the inverter on while watching the inverter’s Battery Voltage LEDs.
A voltage indication during the 5 second (approximate) inverter on time of 10-11 VDC or no voltage indication and the inverter shutting off with a Low Input Voltage LED indicates the fault lies in the Battery/charging system. Continue with Appendixes A, B and C (Troubleshooting batteries, regulators and alternators) or call Dimensions for assistance.
A voltage indication of 11-12 VDC or greater followed by the inverter shutting off with a Low Input Voltage LED indicates a possible defective inverter. Call Dimensions for assistance.
Overload indicator LED on.
Switch the inverter off, remove all AC loads from the inverter’s output receptacle and disconnect the AC hard wire output inside the front panel of the inverter.
Switch the inverter on. Inverter appears to operate normally (no red indicator LED’s) indicates one of the disconnected AC loads was drawing excessive current or an AC wiring short exists in the external AC wiring. Correct the fault and retest the system.
Overload indicator LED on indicates a possible defective inverter. Call Dimensions for assistance.
High Temperature indicator LED on.
Indicates that the inverter has been operated with a somewhat excessive AC load and has overheated (no damage to the inverter should have occurred). The high temperature condition should self-correct in approximately 1 minute to 1 hour. If the condition persists for longer than 1 hour, call Dimensions for assistance.