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Troubleshooting Guide
Most problems can be avoided by reading and following the instructions in this operating manual. Below we list some of those
most commonly experienced along with suggestions for solving them. If, however, these should not resolve the issue, or if you have
questions not covered below, please contact Fisher Scientific.
Trouble
Possible cause
Solution
Air bubbles appear in discharge nozzle
•
Liquid reservoir is empty
•
Refill reservoir and prime unit
•
Too fast filling action
•
Fill and dispense more slowly
•
Leaking piston
•
Clean piston. If problem persists
replace piston
•
Leaking discharge valve
•
Clean unit by flushing throughly.
If problem persists, replace the
discharge valve
Barrel does not fill with liquid
•
Inlet tube not fitted correctly
•
Connect inlet tube correctly
Dispensing not possible
•
Blocked dispense nozzle
•
Disassemble the dispense nozzle
and flush with cleaning fluid
•
Discharge valve stuck
•
Clean unit by immersing valve
assembly in cleaning fluid. If
problem persists, replace valve
assembly
Wrong dispense volume
•
Instrument not calibrated
•
Follow steps of User Calibration
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