Enviro EA800 owner manual Troubleshooting, ACTIVE ALARMS screen

Troubleshooting

Operating or setup errors are indicated by flashing data on the display. Often, a programming error also results in an alarm for the misprogrammed relay. The table below shows and describes common error displays, along with corrective action. For updated information, go to the EA800 page at www.winland.com and look for the troubleshooting section.

Table 13	Troubleshooting
	Symptom	Cause	Corrective Action
Temperature reading indi-		Wired sensor is shorted	Ensure that the sensor connection is not shorted.
cates maximum when			A short equals zero resistance and thus the max-
temperature is actually			imum value.
less.		Wired sensor cable has a short.	Replace damaged cable.
		Sensor has failed	Contact Winland Technical Services at
			1-800-635-4269
Temperature reading indi-		Wired sensor is not connected	Ensure that the sensor is connected to the cor-
cates minimum when tem-			rect header pins. An open connection equals an
perature is actually			infinite resistance and thus the minimum value.
greater.		Wired sensor cable has an open.	Replace damaged cable.
		Sensor has failed	Contact Winland Technical Services at
			1-800-635-4269.
Temperature display does		Incorrect sensor programmed	Verify the actual sensor connected to the sensor
not equal actual tempera-			input is programmed appropriately. Each temper-
ture.			ature sensor is limited to a specific operating
			range.
Display flashes repeat-		The EA800 reboots repeatedly	Cycle power to the EA800 and wait for a period
edly between the Winland		and fails to successfully com-	of time before reapplying power.
Electronics Inc. screen		plete the boot process.	If a USB drive is attached to the USB port,
and a blank screen.			remove it and cycle power as noted above.
			If the problem recurs, contact Winland Technical
			Service at 1-800-635-4269.
The display flashes while		A sensor's reading has	Verify the environmental conditions of the sen-
displaying the		exceeded a set limit.	sor.
ACTIVE ALARMS screen		A wireless sensor is not commu-	Verify the received signal strength as outlined in
		nicating with the base unit.	“Verifying RF Signal Strength” on page 72.

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