Table of Contents
Advertisement
TROUBLESHOOTING / REPAIR / MAINTENANCE
ONLY
QUALIFIED
SHOULD PERFORM MAINTENANCE
ON THE SYSTEM.
HAZARDOUS
PRESENT INSIDE THE UNIT DURING
NORMAL OPERATIONS.
ELECTRICAL
CAUTIONS MUST BE FOLLOWED
WHEN
SERVICING
MENT.
TO PREVENT RISK OF ELECTRICAL
SHOCK, TURN OFF AND LOCK OUT
ALL POWER SOURCES TO THE UNIT
BEFORE SERVICING UNIT.
(For any other problems not listed below, or if
cause of the problem cannot be determined,
please call Control Concepts at 800-288-6169 or
607-724-2484.)
Red LED on Door Illuminated &
Green LED on Door Extinguished
1.
Check power supply connections. Assure proper voltage
is being supplied to unit. If proper voltages are not
being supplied, correct wiring to the unit and check the
source of supply.
2.
Check to see if any of the green LEDs on the internal
modules are extinguished. If so, replace module which
contain modules with extinguished LEDs.
DISCONNECT POWER TO THE UNIT
BEFORE PROCEEDING
3.
Remove customer wiring (or wiring from disconnect to
module, if disconnect is provided) identifying which
color supply wire goes where for re-wiring purposes
(i.e., red supply wire removed from Phase B, etc...).
Installation, Operation
and Maintenance Manual
®
DANGER
PERSONNEL
VOLTAGES
ARE
SAFETY
PRE-
THIS
EQUIP-
4.
Remove module, disconnecting conductors to the phase
terminal block (or disconnect), ground lug and neutral
terminal block.
5.
Place new module in position and secure it.
6.
Connect the conductors of the new module to the phase
switch terminal block (or disconnect), ground lug and
neutral terminal block.
7.
Reconnect customer wiring (or wiring from disconnect
to module, if disconnect is provided) in its original
location as noted in step 3.
8.
Restore power to unit. Assure that the green LED on
each module is illuminated and the red LED and alarm
(if applicable) are off.
9.
Replacement is now complete.
If (after replacement) green LEDs are not illuminated on
all modules and the door, or if the red LED or alarm on
the door are ON, disconnect power to the unit and
recheck all connections.
contact the factory.
Display Blank –
No Red or Green LEDs Illuminated on Door
1.
Check supply connections. Assure proper voltage is
supplied to unit.
If proper voltages are not being
supplied, correct wiring to the unit and check the source
of supply.
Note: If voltage supplied to unit is correct, contact factory
for replacement parts.
- 12 -
Surge
Suppression
Systems
If problem is not apparent,
LM Series
Rev 0, 5/99
Hide quick links:
Advertisement
Table of Contents
