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Troubleshooting Guide
Problem
Possible Causes
No AC output during
inverter mode
Check if the in-line fuse which is located within 18” from the battery’s positive post is installed or open.
Check if DC connections are tight and clean.
Check if the AC output circuit breaker is tripped.
Check if the switches are on. Check if any of the wires connected to the remote switches are loose or disconnected. (Local
switches are inactive with “R” configurations.)
Check if the GFCI is tripped. Reset the unit if
necessary by cycling power.
If GFCI is set, disconnect all loads and connect a test light. If the test light
is off, replace the GFCI or return the inverter for service.
For hardwired connections, remove DC input voltage and inspect the AC hardwire connections.
Low Battery
The use of a battery isolator is not recommended due to excessive voltage drop across isolator terminals.
Battery voltage must be above the low battery threshold (measured at the inverter) for the inverter to be on.
Check for proper DC wire AWG (see DC Wire Gauge & Fusing section.)
Overload
Unplug all loads and reset the inverter. To reset,
turn the unit off and wait for 30 seconds to turn
on again.
If the overload condition clears, check for short circuits or check the load
size versus the inverter output wattage size.
If the overload persists, possible failed inverter.
High Temperature
Let the unit cool down.
Verify that all vent openings are clear of obstruction.
Reduce ambient temperature and/or load.
Inverter will not turn
off
Verify that all remote “On/Off ” switches are in the “Off ” position.
Charger or bypass will
not enable
Verify that the AC input voltage is between 90 V and 130 Vrms.
Verify that the AC input breaker has not tripped.
Table 11 Troubleshooting
NOTE: If the status LEDs are illuminated, refer to the “LED Status Chart” for additional information.
NOTE: Whenever cycling power, wait at least 30 seconds before turning back on to allow the inverter processor to completely power down. If the
processor does not power down, it may retain the previous fault state.
