Bio-Rad PowerPac™ Basic Power Supply - Manual (Page 14)

Problem Cause Solution
E8 error code Regulation error Turn power supply off, then on to
reset.
displayed
If problem persists, contact Bio-Rad
Technical Resources
E9 error code Change in Load Check and correct any potential
displayed Resistance. resistance problem then,
• press run/pause key to resume run
or,
The PowerPac • press any key, other than the
run/pause
Basic detects drastic key, to clear the error code.
changes in resistance
which may indicate
failure of the cell’s power
leads or a loose output
connection.
Note: Certain applications
exhibit fluctuations in
resistance that can
trigger the change in
resistance error code.
If this is the case, the
change in resistance
feature can be deactivated
to allow uninterrupted
completion of a run.
(see Section 3, Step 8)
Caution: Deactivating this
safety feature increases the
possibility that a failure of the
power leads or loose output
connection will not be
detected.
E10 error code Unacceptable value(s) Clear the code by pressing any key
displayed entered other than the run/pause key.
Then, enter values within range of
PowerPac Basic and press the
run/pause key
E12 error code Internal Over Current Possible power supply malfunction.
displayed
E13 error code
Internal Short Circuit Check for and correct problems such
displayed as dirty contacts, frayed wires,
E14 error code Internal Over Voltage excessive buffer concentration. Then
displayed press any key other than the run/pause
E15 error code Internal Short Circuit key to clear the code.
displayed
E16 error code
Hardware failure Contact Bio-Rad Technical Resources
displayed
E17 error code
Hardware failure
displayed
E98 error code
Internal system error
displayed
E99 error code
Internal system error
displayed
8