18
Troubleshooting Guide
Many operating problems may be solved by carefully reading and following the
instructions in this manual accordingly. Some suggestions for troubleshooting
are given below. Should these suggestions not resolve the problem, contact
our SERVICE DEPARTMENT or a distributor in your region for assistance. If
troubleshooting service is required, please include a full description of the
problem.
Problem
Cause
Solution
No Display / lights
No AC power
Check if
PWR
power supply is unplugged, or
AC power source problem
AC power cord is not
connected
Check AC power cord connections at both
ends. Use the correct cords.
The fuse has blown
Replace the fuse
Repeated fuse
broken
Hardware failure
Contact M
RC
service department
Operation stops with
alarm: The screen
displays
“
”
Electrophoresis leads are
not connected to the
power supply or to the
electrophoresis unit(s), or
there is a broken circuit in
the electrophoresis cell
Check the connections to the power supply
and on your electrophoresis cell to make
sure the connection is intact; check
condition of wires in electrophoresis unit.
Close the circuit by reconnecting the cables.
Press
START/STOP
to restart the run.
High resistance due to
tape left on a pre-cast
gel, incorrect buffer
concentration, or
incorrect buffer volumes
in the electrophoresis cell
Correct the condition by making sure the
tape is removed from the pre-cast gel,
buffers are prepared correctly, and the
recommended volume of buffer is added to
the electrophoresis unit.
Operation stops with
alarm:
Display shows
Bad connections for
terminal connectors or
damaged wires or
damaged platinum wires
Check all the connections to terminators,
cables, wires, and gel tanks
