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FB1000-2 MANUAL Page 10 7608177 Rev. A 8/9/02
Troubleshooting and Error Indications
The FB1000 detects and reports several events and conditions that are considered errors. The
FB1000 will stop any run in process and display "ERROR XX" where XX is one of the below
listed errors. When the FB1000 is displaying an error indication, press the gray ON/OFF key to
clear the error and return to setup mode, or press the Run key to resume the run (after correcting
the cause of the error). Note that loss of AC power during a run is considered an error condition.
Always stop a run before turning off AC power to the FB1000.
'XX' Condition and possible remedy
00
20
Minimum load current detected. The output is not connected, or the
electrophoresis apparatus is not set up properly. Check your setup and
connections.
01
21
Maximum load current exceeded. The output is short circuit, or the
electrophoresis apparatus is not set up properly. Check your setup and
connections
02
Step load current change. The FB1000 has detected a large change in load
current. Check your setup and connections
04
Loss of AC power, automatic recovery from power fail disabled, run not
completed. The FB1000 detected loss of AC power and didn’t complete run.
05
Loss of AC power; run not timed. The FB1000 detected loss of AC power.
06-99
The FB1000 detected an internal error condition. Contact technical support
for instructions.
Before servicing the unit, be sure to always turn off AC power using the switch at the rear of the
unit, and then disconnecting the AC line cord. The FB1000 power supply requires no periodic
servicing and should provide years of trouble free operation. Should you need to replace the fuses
proceed as follows:
Replacing a fuse
CAUTION: The FB1000 uses double pole neutral fusing.
Turn off AC power using the switch at the rear of the unit, and then disconnecting the AC
line cord. Remove the fuse holder assembly using a small flat blade screwdriver.
Always replace both fuses with appropriate replacement fuses: 5A, 250V, 5X20mm, type
T fuse (T5A,250V) (Fisher catalog number FB-FUSE-3).