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For further assistance contact :
PDI Service Department
(269) 781-4242
Troubleshooting
Troubleshooting Guide
Symptom
Corrective Actions
PD1200 Series In-
verter has a flashing
fault light
The inverter has detected a fault condition (see Figure 20). 30 Seconds after the fault condition is detected the display enters
sleep mode.
Press the select button to view the error code. Press the select button again to view the battery voltage. Proceed to the
correct troubleshooting action below.
E-1 is displayed
The input voltage fell below 10.5 VDC. Inverter will automatically restart when DC Input voltage is increased to 12.0VDC
Re-charge batteries to at least 12.0VDC.
Ensure all DC input connections are tightened
Inverter is turning on
and off. E-1 is dis-
played when it is off
Likely, the batteries are nearly fully discharged. When a heavy load is being drawn from a battery the battery voltage will droop
causing an under voltage error. Then with the inverter turned off the battery voltage will slowly drift back up because there is
no load on the batteries. If the battery voltage drifts back up to 12.0VDC the inverter will turn back on. This cycle may repeat
several times. This behavior will be seen more often with batteries nearing the end of life.
Re-charge batteries to at least 12.0VDC.
Ensure all DC input connections are tightened
Make sure DC input wire size and length comply with Figure 15
Replace batteries
Batteries are fully
charged. Inverter dis-
plays E-1 immediately
after it is turned on
The batteries may be fully charged, but if the battery voltage is not properly connected to the DC Input terminals of the inverter
a low battery fault may be falsely triggered.
Ensure all DC input connections are tightened
Make sure DC input wire size and length comply with Figure 15
E-2 is displayed
The input voltage has exceeded 15.5VDC. Inverter will automatically restart when DC Input voltage is decreased to 15.0VDC
Turn off the inverter by holding down the power button. Locate DC source and verify it is properly connected for 12VDC
operation
E-3 is displayed
An over-load condition has been detected. This can be excessive power or a peak power that exceed 2X rated power. A manual
restart is required after the over-load issue has been resolved.
Check output wiring for a short circuit.
Determine what loads are connected to the output of the inverter. Remove un-necessary loads until power is below maxi-
mum rated power.
Determine peak power draw from inductive loads (refrigerators and other motor driven loads). If total peak power draw
exceeds 2X rated power loads remove loads until peak power is below 2X rated power
E-4 is displayed
An over temperature condition has occurred. The inverter will automatically restart when the internal temperature falls to safe
operating conditions.
Ensure that debris hasn’t fallen into the fan opening blocking its operation
Remove items surrounding the inverter to ensure adequate air flow.
Move inverter to a well ventilated space.
Lower ambient air temperature to room temperature.
Inverter is turning on
and off. E-4 is dis-
played when it is off
An over temperature condition has occurred. The inverter will automatically restart when the internal temperature falls to safe
operating conditions.
Ensure that debris hasn’t fallen into the fan opening blocking its operation
Remove items surrounding the inverter to ensure adequate air flow.
Move inverter to a well ventilated space.
Lower ambient air temperature to room temperature.
WARNING: FIRE, SHOCK, OR ENERGY HAZARD
DO NOT disassemble the inverter. It does not contain any user service-
able parts. Attempting to service the unit yourself could result in an
electrical shock or burn.
Failure to follow these instructions may result in serious injury or
death.
