Owner’s Manual 23
Wanco® Metro™ Message Sign
5 Troubleshooting
5.1 Before troubleshooting
Before performing any troubleshooting or servicing on the message sign, observe all
safety precautions in Section 2, page 3.
Always disconnect power cable from computer box before disconnecting battery
cables. The computer box is located inside the battery box.
When using the message sign controller for troubleshooting, refer to the controller
user-interface manual for additional information if necessary. The user-interface
manual is included with the message sign and may also be downloaded from
www.wanco.com.
5.2 Alarms
The controller may display any of the active alarms listed in Table 5-1, which can
indicate issues with the message sign that require attention.
CAUTION
Voltage surge could damage control circuits.
Before servicing electrical components, disconnect power
cable from computer box.
IMPORTANT!
You must have advanced- or service-level access to the controller in order to perform
service and troubleshooting procedures.
Table 5-1. Alarms indicated by the controller
Alarm Description Solution
Dsply=!! One or more sign display modules not
responding
see Section 5.2.1, page 24
PwrBd=!! Power control system not responding see Section 5.2.2, page 25
NTCIP=!! NTCIP system communications error see Section 5.2.3, page 26
AuxIO=!! Communications error between the sign and
one or more auxiliary devices
see Section 5.2.4, page 26
VoltWrn=!! One or more voltages out of range see Section 5.2.5, page 27
TempWrn=!! One or more temperatures out of range see Section 5.2.6, page 27
TempCrt=!! Sign temperature is critically high and the sign
display has been “blanked”
see Section 5.2.6, page 27
PhtoCel=!! One or more photocell inputs are out of range see Section 5.2.7, page 28
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