Bio-Rad PowerPac™ HC High-Current Power Supply - Manual (Page 16)

Problem Cause Solution
E09 RESISTANCE Change in load Check and correct any potential
CHANGE DETECTED resistance detected. resistance problem.
The PowerPac HC Verify all electrical connections.
CELL & CABLES detects drastic changes Verify buffer levels are appropriate.
* PRESS STOP KEY in resistance which
may indicate failure
of the cell's power
leads or a loose
output connection.
• Loose ouput
connections leading
to intermittent
connection to the
loads.
• Cells added or
removed during the
run.
Note: Certain applications
exhibit intrinsic fluctuations
in resistance that can
trigger the Resistance
Change error message. If
this is the case, the
Resistance Change
detection feature can be
deactivated to allow an
uninterrupted completion
of the run. See Section 3.4
for details on turning off
RRCd.
Caution: Deactivating this
safety feature increases
the possibility that a
failure of the power
leads or loose output
connections will not be
detected.
E11 GROUND LEAK Insulation failure in the Check electrical connections and check
DETECTED electrical connections cell/chiller system for leaks. Ensure
outside the power that the electrophoresis cell rests on
CELL & CHILLER supply has caused a an insulated, dry surface.
* POWER OFF/ON current flow that may
create an unsafe
condition.
E16 FAN FAILURE The fan is not Inspect the fan grid to check if the fan
blade is rotating when the power
FAN GRID working, either due to a supply is turned "ON". Make sure no
* POWER OFF/ON electrical failure or foreign material has penetrated the
physical obstruction. fan vent. If problem persists, contact
Bio-Rad.
E17 SYSTEM Fan vents blocked and or Clear a space of at least 6 cm around
OVERHEATING ambient temperature the fan vents to improve airflow. Press
too high. any key to go to the home screen to
FAN & RM. TEMP restart. Operate the unit within the
* POWER OFF/ON recommended temperature range
(0 to 40°C)
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