Intermec PB50 - Page 39

Chapter 3 — Troubleshooting
PB50 and PW50 Forklift Power Supply Installation Guide 31
Troubleshooting Power Failure With the Main Output LED
LED Meaning Possible Solution
Lit The power supply is
working.
Test or substitute output power
cable.
Not lit No output from the
power supply.
Try the possible solutions in this
order:
• Disconnect the power output
cable.
• Reset the power supply.
•Check the fuse.
Flickers There is an intermittent
main power connection.
Check connection to the main
power source.
Flickers The power supply
detected an over-voltage
condition.
The forklift noise spikes are
exceeding voltage rating for the
power supply. Work with your
forklift manufacturer to look for
alternate power connection
locations. Check to see whether
they have any recommended
inline filters or suppressors.
Flickers The power supply
detected an over-current
condition.
Disconnect the output cable. If
the flickering stops, check the
cables and add downstream
elements.
Flickers The power supply
detected an over-
temperature condition.
Try the possible solutions in this
order:
• Check the case temperature of
the power supply. If too hot to
touch, provide better heatsink
and more air flow.
• Replace damaged cables.
• Protect from direct sunlight
and mount in the shade.