Possible interruption to customer load due to Photo Flashes. While testing a new service, we hope to be offering soon, the Dallas based engineering department has discovered that the use of a flash camera in or around the UPS may cause a fault in the unit that could result in the loss of power to the critical load. We have noticed two different scenarios: 1. While taking a picture of the inside of a running unit in the test lab, the flash affected the firmware,
resulting in a lock up. The unit did not transfer, it just shut off! 2. At an actual customer site, prior to doing a PM on a number of units, we wanted to test the new Thermal cam. Part of the test involves taking a digital photo. Upon turning the digital camera on while standing next to a UPS, the RF of the flash charge circuit was enough to interrupt the inverter drives. Fortunately, the unit did successfully transfer to bypass, but only after the loss of a few fuses.
If the
engine clicks but will not start, the battery or solenoid is often to blame. To
find the battery on a riding lawn mower:
Check to see that all wires
are securely connected and that the terminals are clean.
If the lawn mower still does
not start, the problem may be with the fuel, if it was left in the mower over
the winter months the fuel may have become stale or watered.. If the fuel
appears dirty or contains water, you will need to drain the fuel tank and
replace with fresh gasoline.
Other reasons for the mower not
to starting also include:
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