Troubleshooting - GE SE 250 Mighty Small II Operating Instructions Manual

7 Troubleshooting

7 Troubleshooting
About this chapter
This chapter provides information to assist users and service personnel to identify and
correct problems that may occur when operating the product.
If the suggested actions in this guide do not solve the problem, or if the problem is not
covered by this guide, contact your GE representative for advice.
Safety precautions
Potential problems
Error description
Smile effect on the
buffer front
44
CAUTION
Circulate only water or 50/50 water/ethylene glycol through the
heat exchanger. Never use anti-freeze or any organic solvent in
the heat exchanger.
CAUTION
Never introduce anti-freeze or any organic solvent into any part
of the instrument. Organic solvents will cause irreparable damage
to the instrument.
Corrective action
To reduce the running temperature:
Circulate coolant through the upper buffer chamber core.
•
Prechill the buffer.
•
Decrease the current or voltage setting. (10 mA per 0.75
•
mm gel, 15 mA per 1.5 mm thick gel.)
Run the gel in the cold room.
•
SE 250/260 Mighty Small II Operating Instructions 29281629 AA