Diagnostics and Troubleshooting
UNT-SVX041D-EN
73
Receiver Diagnostics
LED1, LED2, and LED3, located on the receiver of all
models respond to diagnostics by exhibiting specific
blinking patterns. They respond independently of any user
action (see the table below).
Sensor Diagnostics
LED1, LED2, and LED3, located on the WZS respond to
diagnostics by exhibiting specific blinking patterns. View
their response by pressing the Test button.
Error codes appear on the WDS when diagnostics occur
(see the table below).
Figure 61.
WDS shows test symbols and error codes
.
Test symbols
Error code
Test button
Table 32. Diagnostics on the receiver
LED state
Indicates...
LED1: Off
LED2: Off
LED3: 1-blink pattern repeated continuously
(a)
Disassociated
Receiver is not associated, waiting for a sensor.
Receiver lost communication with sensor.
Receiver has no devices on its wireless personal area network.
Association with a device has been manually removed.
LED1: Off
LED2: Off
LED3: 2-blink pattern repeated continuously
Address set to 000
Address not set to between 001–999.
LED1: Off
LED2: Off
LED3: 3-blink pattern repeated continuously
Not configured
Receiver configuration properties not properly set (defective receiver).
(a) Blink pattern is On for 1/4 s, Off for 1/4 s, with 2 s Off between repetitions.
Table 33. Diagnostics for wireless zone sensors and error code shown on wireless display sensor
LED state when Test button is pressed on WZS
Error code shown
on WDS
Indicates...
n/a
E0, E5, E7
Sensor failure
Replace sensor
LED1: Off
LED2: Off
LED3
(a)
: 1-blink pattern repeated 3 times
E1
Disassociated
Sensor is not associated with a receiver.
LED1: Off
LED2: Off
LED3
: 2-blink pattern repeated 3 times
E2
Address set to 000
Address not set to between 001–999.
LED1: Off
LED2: Off
LED3
: 3-blink pattern repeated 3 times
E3
Software error
Replace sensor
LED1: Off
LED2: Off
LED3
: 4-blink pattern repeated 3 times
E4
Input voltage too high
No RF transmission is permitted with an input battery voltage
greater than 3.9 V.
(a) Blink pattern is On for 1/4 s, Off for 1/4 s, with 2 s Off between repetitions.