OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com
68
Maintenance
Troubleshooting
Symptom
Cause
Remedy
Power
There is no
power to the
machine
The main power cord is not
plugged in.
One of the fuses for the
main power supply is blown
Ensure the power cord(s)
is firmly into the wall and
the machine
Check and replace the
fuses, see page 65
Heating / Cooling
The unit is not
heating
The heater switch is not on
The heater fuse is blown
Temperature overshoot
tripped LF Controller
Turn the heater switch to
the on position
Replace heater fuse, see
page 65
Turn main power off and
then back on. Make sure
unit is not overheating
The unit is
overheating
The thermocouple is not
plugged in
Plug in the thermocouple
The unit is not
able to maintain
temperature or
the temperature
is cycling
uncontrollably
The coolant water is on
The thermocouple is not
plugged in
Turn off the cooling water
Plug in the thermocouple
Thermocouple
Thermocouple
will not fit into
the cell cap
The port is filled with cement
The thermocouple is bent
The hub collar is too low on
the thermocouple shaft
Use a small drill bit to clear
the cement blockage
Replace the thermocouple
Screw the collar up until
there are 2 threads showing