Bio-Rad Model 583 Gel Drying Supports - Manual (Page 18)

15
Maintenance and Troubleshooting
Table 6 (continued)
Troubleshooting Guide
Indication Problem
Wet spot appears on The vacuum pump was
the gel at the location turned off before the
of the vacuum outlet
vacuum seal was broken,
in the dryer base. causing liquid to be pulled
back into the gel dryer
from the vacuum line.
Front panel display The microprocessor is
flashes the message unable to control the
HOT and the heating element and the
alarm sounds. temperature has
reached 100° C.
Front panel display The microprocessor is
flashes the message unable to keep the
rEg. temperature stable at
the set value.
Action
Open the Gel Dryer and lift the transparent Sealing
Gasket prior to turning off the vacuum pump.
Press any key to clear the display. The dryer will
attempt to control temperature until the run is com-
pleted. An internal thermostat protects the dryer by
turning the heater off if it reaches 115° C.
Turn off the gel dryer power, and then turn it back on.
If the problem persists, contact your local Bio-Rad
office for repair.
Normal operation allows the dryer 20 minutes to
reach set temperature. If the dryer does not reach
the set value, or if it deviates from the set value by
more than 2° C during the run, it will register a regu-
lation error rEg.
Press any key to clear the display. The dryer will
attempt to control temperature until the run is com-
pleted.
Turn off the gel dryer power, and then turn it back on.
If the problem persists, contact your local Bio-Rad
office for repair.