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Limitless™ WPMM Series
11 TROUBLESHOOTING GUIDES
The troubleshooting guide includes WPMM indications and symptoms as it is being used in conjunction with the
Limitless™ switch series.
SYMPTOM
Green LED is not ON
Green, amber and/or red LEDs do not
blink ON at start-up
Green, amber, and red LEDs are
momentarily OFF then ON with
possible NPN output change during
normal operation. Resulting in only
green LED on and possibly incorrect
amber and red LED indication/output
for up to 30 seconds.
Amber LED is flashing
Amber LED is constantly ON
CAUSE
10 Vdc to 30 Vdc is not
applied to "+" & "-" terminals
Power leads connected in
reverse
WPMM internal electronics
damaged
LED(s) burnt out
ESD/EMI exposure beyond
published specifications or
device performing self check
Low battery in Limitless™
switch
Incorrect battery installed in
Limitless™ switch
Dead or Low battery in
Limitless™ switch
Incorrect battery installed in
Limitless™ switch
RF range/distance between
WPMM and Limitless™ switch
is beyond capability
Exposure to adjacent
materials/objects and/or
materials/objects
Damage or missing antenna
from WPMM and/or
Limitless™ switch
Antenna alignment is not
acceptable
Damage to antenna cable
Loose antenna or cable
connections
Issue 2
RESOLUTION
Check for proper connection and 10 Vdc to 30
Vdc to "+" and "-" terminals
Check for proper connection of power: "+" and
"-" terminals
Replace WPMM
Replace WPMM
Determine source for ESD/EMI emissions in
application and take action to remove
• Determine which Limitless™ switch has a low
battery using the procedure in Section 6.3
• Replace Limitless™ switch battery per
Limitless™ switch Installation guide
• Determine which Limitless™ switch has a low
battery using the procedure in Section 6.3
• Replace Limitless™ switch battery per
Limitless™ switch Installation guide
• Determine which Limitless™ switch has a low
battery using the procedure in Section 6.3
• Limitless™ switch status will in this case
be reported as insufficient RF
• Replace Limitless™ switch battery per
Limitless™ switch installation guide
• Determine which Limitless™ switch has a low
battery using the procedure in Section 6.3
• Limitless™ switch status will in this case
be reported as insufficient RF
• Replace Limitless™ switch battery per
Limitless™ switch installation guide
Reposition Limitless™ switch closer to the
WPMM until amber LED is no longer ON
Reposition Limitless™ switch away from objects
until amber LED is no longer ON
Replace antenna per Section 7.3
Reposition antenna per Section 7.3
Replace antenna cable per Section 7.3
Check connections and tighten as necessary per
Section 7.3
Honeywell Sensing and Control 37
50051864
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