MP SERIES™ Battery Backup System for Traffic Signals: MP2000E System
Volume One: Operating Manual
Page 7-12
SYMPTOM
CAUSE
REMEDY
Batteries will not
charge
Battery circuit is open
Check that the battery connections have
the proper torque
Verify that 46 VDC to 56 VDC of output is
present at the MP2000E battery connector
Check the battery cable harness for
connection errors or loose / open
connections
Verify the battery breaker is closed
Replace the battery if bad / dead
Wrong or faulty temperature
probe is connected at the
front panel
Use factory-supplied temperature probe
reading approximately 12,000 Ω at 25°C
(77°F)
LCD screen is not
readable
Adjust the contrast
Press and hold the ESC button, then press
the ENTER while holding the ESC button.
Release both buttons and use the UP and
DOWN arrow buttons to adjust the
contrast.
Press the ENTER button when the desired
contrast is achieved
Faulty unit
Contact Myers Emergency Power Systems
Technical Support at (610) 868-5400.
Password access
is not available
Password has been
forgotten / lost
If you have not created a unique password,
use the factory default password 1111
If you have created a unique password,
Contact Myers Emergency Power Systems
Technical Support at (610) 868-5400 to
reset the password.
Figure 7-5: MP2000E Troubleshooting Guide (continued)
