Owner`s manual
VANNER Incorporated Owner’s Manual
SRC12-1200L/S INVERTER/CHARGER
10/15/10 - 11:33 AM
21
generator) is available, the SRC12-1200L/S transfer switch system breaks the connection between neutral
and inverter chassis ground. The neutral-to-ground connection for passthrough power is then provided by
the AC input source.
11 PREVENTIVE MAINTENANCE
There are no user serviceable components inside the inverter. For service refer to the Vanner Incorporated
Service Department or other qualified service personnel.
11.1 MAINTENANCE ITEMS
For continued reliability and safety, a monthly maintenance program should be implemented to include the
following:
1. Check to insure that all DC and AC wiring connections are secured and corrosion free.
2. Check air ventilation openings for dust and other obstructions
3. Examine receptacle, indicators and switches for cracks and breaks.
4. Examine for any surfaces that are discolored or deformed due to excessive heat.
11.2 TROUBLESHOOTING PROCEDURES
The following are the most common questions heard by Vanner service professionals. If your situation does
not apply to the following categories, please contact your local Vanner Incorporated Service Center or the
Vanner Incorporated Customer Service department: 1-800-AC-POWER (1-800-227-6937). Please have
your model and serial number available when consulting customer service.
ALWAYS CHECK THE FOLLOWING FIRST:
DC Fuse condition
AC output and input breakers
Check all GFCI breakers as equipped throughout AC system
Unit On/Off and Remote On/Off switch positions
Check battery connections for tightness or corrosion
Check battery voltage at battery and inverter
Symptom ON Light does not light steadily after pushing in the ON/OFF/RESET Switch.
Solution Light flashes two blinks per second in Load Demand Stand-by mode.
Light flashes one blink per second when utility power is present.
Symptom Inverter Light does not illuminate
Solution Reset On/Off Switch on unit and remote
Disconnect remote switch and attempt starting with unit On/Off switch
Check DC fuse condition
Verify battery voltage is above 10.5 volts at inverter
Symptom ON light fully illuminates. AC load does not run.
Solution Check and reset AC circuit breakers.
Check and reset any GFCI breakers in AC circuit.
Verify AC load and wiring is in proper condition.
Symptom BATTERY LOW light illuminates when AC loads is applied.
Solution Check battery connections.
Check battery condition.
Recharge battery if voltage is less than 10.5 VDC.










