Troubleshooting
4–16 975-0125-02-01
drive these loads, either a sma ll companion load must be used to bring the inverter
out of its search mode, or the inverter may be programmed to remain on by
defeating the search mode f eature.
Clocks
The inverter’s crystal-controlled oscillator keeps the frequency accurate to within
a few seconds a day. Most clocks do not draw enough power to trigger the load
sensing circuit. In order to operate without other loads present, the load sensing
will have to be defeated. The best solution is to buy a battery-operated clock or a
clock that is not dependent on line frequency and voltage.
Searching
If the amount of power which a load dr aws decreases after the load turns on, an d if
this “on” load is less than the load sensing threshold, it will be turned on and off
by the inverter. Incandescent light bulbs may present this problem when the load
sensing threshold is set near the wattage rating of the bulb. The solution is to
reduce the load sense power threshold.