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Problem
Cause
E8 error code
Regulation error
reset.
displayed
E9 error code
Change in Load
displayed
Resistance.
The PowerPac
Basic detects drastic
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)
displayed
entered
E12 error code
Internal Over Current
displayed
E13 error code
Internal Short Circuit
displayed
E14 error code
Internal Over Voltage
displayed
E15 error code
Internal Short Circuit
displayed
E16 error code
Hardware failure
displayed
E17 error code
Hardware failure
displayed
E98 error code
Internal system error
displayed
E99 error code
Internal system error
displayed
Solution
Turn power supply off, then on to
If problem persists, contact Bio-Rad
Technical Resources
Check and correct any potential
resistance problem then,
• press run/pause key to resume run
or,
• press any key, other than the
run/pause
key, to clear the error code.
Clear the code by pressing any key
other than the run/pause key.
Then, enter values within range of
PowerPac Basic and press the
run/pause key
Possible power supply malfunction.
Check for and correct problems such
as dirty contacts, frayed wires,
excessive buffer concentration. Then
press any key other than the run/pause
key to clear the code.
Contact Bio-Rad Technical Resources
8
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