Troubleshooting Guide - BIO RAD HYDROTECH Instruction Manual

Maintenance and Troubleshooting

3.2 TROUBLESHOOTING GUIDE

Refer to Table 6, Troubleshooting Guide, for HydroTech Vacuum Pump troubleshooting. For further assis-
tance, call 1-800-4BIORAD in the U.S.A.; or contact your local Bio-Rad representative.
Indication
HydroTech Vacuum
Pump will not start
Reservoir is foaming
No vacuum in
gel dryer
No vacuum from
HydroTech Vacuum
Pump
Declining vacuum
over time (longer
gel drying time)
8
Table 6.
Troubleshooting Guide
Problem
No power
Pump is running but
not pulling vacuum
Pump is pulling vacuum
Reservoir is above
the MAX level
Vacuum line is blocked
Gel Dryer is blocked
Quick connect fitting
is clogged
No water in reservoir
Foaming in reservoir
Ambient temperature
above 35°C
Foaming in reservoir
Action
Check electrical source, power connections, and fuse.
To replace the fuse, unplug the dryer. Then pry open
the cover on the power switch and pull out the fuse
holder. (See Appendix B for replacement fuse specifi-
cations.)
Check the connections in the vacuum line.
Drain the reservoir and, using deionized or tap water,
refill to the MIN mark.
Drain the reservoir and, using deionized or tap water,
refill to the MIN mark.
Check the vacuum line for kinks, clogs or other block-
ages. Make sure the two-way valve is open.
Vacuum line may be kinked inside gel dryer. Refer to
the gel dryer instruction manual.
Check that the quick connect fitting is properly con-
nected and not clogged.
Make sure the reservoir is filled to the MIN level.
Drain the reservoir and, using deionized or tap water,
refill to the MIN mark.
Run the pump in a cooler environment, or refill the
reservoir with chilled water.
Drain the reservoir and, using deionized or tap water,
refill to the MIN mark.