Emerson 185 manual Troubleshooting, Problem Cause and Solution

		TROUBLESHOOTING (continued)	Series 185
Problem		Cause and Solution
The ATS does not immediately	1.	Verify that the Generator Accepted light is on. If it is off, see previous trouble-
transfer the load to the		shooting problem. The ATS will not transfer the load to an unacceptable source.
generator.	2.	Wait approximately 10 seconds for the transfer to generator time delay. This
		fixed delay allows the generator output to stabilize before a load is applied to it.
	3.	Press the Bypass Time Delay button for immediate load transfer to the generator.
The ATS transfers the load to	1.	The generator may be overloaded. Check to see if the generator circuit breaker
the generator, but the genera-		tripped. Check the sum of the loads to be sure it does not exceed the capacity of
tor bogs down (struggles or		the generator. Some motor loads require three times more power for starting.
slows down). The ATS retran-	2.	Check for short circuit in a connected load.
sfers back to the utility.
	3.	Observe the Load on Utility and Load on Generator lights.
The generator stops after a	1. Verify proper generator operation; it may have run out of fuel or shut down
running for awhile. The ATS		because of low oil level (see generator manual).
retransfers back to the utility	2.	The generator may be overloaded. Check to see if the generator circuit breaker
(if acceptable).
		tripped. Check the sum of the loads to be sure it does not exceed the capacity of
		the generator. Some motor loads require three times more power for starting.
	3.	Check for short circuit in a connected load.
	4.	Observe the Load on Utility and Load on Generator lights.
The ATS does not retransfer	1.	Verify that the Utility Accepted light is on. The ATS will not transfer the load to
the load back to the utility.		an unacceptable source.
	2.	Wait approximately 15 minutes for the retransfer to utility time delay. The utility
		must be acceptable for 15 minutes continuously.
	3.	Press the Bypass Time Delay button for immediate load retransfer to the utility.
The ATS retransfers the load	1.	Wait approximately 5 minutes for the unloaded running (engine cooldown) time
back to the utility but the		delay.
generator keeps running.	2.	The engine cooldown fixed time delay is important to prevent generator damage.
The generator exerciser does	1.	Verify that the Automatic Generator Exerciser light is blinking. When the utility is
not seem to work.		acceptable and the load is on the utility, this light flashes the number of days until
		the next exercise period. When the light is off, no exercise period is set. The
		light is also off when the generator is running.
	2.	With ALL POWER OFF, verify that the exerciser is turned on. Check DIP switch
		S1 actuator 7, and S2 actuator 10. See Table B for generator exerciser settings.
	3.	With ALL POWER OFF, check the 9 volt battery. Replace, if necessary, with a
		quality alkaline battery: Duracell MN1404, Everready 522, Panasonic 6AM6, or
		equivalent. See Figure 5.
The generator exerciser does	1.	With ALL POWER OFF, verify that exercise with load is turned on. Check DIP
not transfer the load to the		switch S1 actuator 8. See Table B for generator exerciser settings.
generator.

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