Bio-Rad Model 583 Gel Drying Supports - Manual (Page 11)

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.
Table 6.
Troubleshooting Guide
Indication Problem
HydroTech Vacuum No power
Pump will not start
Reservoir is foaming Pump is running but
not pulling vacuum
Pump is pulling vacuum
Reservoir is above
the MAX level
No vacuum in Vacuum line is blocked
gel dryer
Gel Dryer is blocked
No vacuum from Quick connect fitting
HydroTech Vacuum is clogged
Pump
No water in reservoir
Foaming in reservoir
Declining vacuum Ambient temperature
over time (longer above 35°C
gel drying time)
Foaming in reservoir
Maintenance and Troubleshooting
8
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.