Specifications

28
Problem Probable Causes Corrective Action
Control/Programmer locked up,
not allowing any change to
values.
Program is running. To cancel program, press up &
down arrows at the same time.
Repeated element burnout. Overheating furnace.
Heating harmful materials.
Contamination present from
previous burnout.
Wired improperly.
Do not exceed the maximum
operating temperature of furnace
or recommended continuous
intermittent use values.
Enclose material in container.
Clean up spills on chamber.
Ventilate chamber by leaving
door cracked slightly open when
heating known harmful reagents.
Clean and/or replace insulation
material.
Check wiring diagram for correct
wiring of your furnace.
Inaccurate. Oxidized or contaminated
thermocouple.
Poor thermocouple connections.
Improper loading.
Poor ventilation of base.
Control out of calibration.
Replace thermocouple.
Tighten connections.
Use proper loading procedures.
Clear area around furnace base.
Contact Thermolyne.
Maintenance and Servicing
WARNING
This furnace contains refractory ceramic insulation which can produce respirable fibers
and dust when handled. These fibers can cause irritation and can aggravate pre-existing
respiratory disease. The International Agency for Research on Cancer (IARC) has
classified refractory ceramic fiber as possibly carcinogenic. After service refractory ceramic
fiber dust may contain crystalline silica, which may cause lung damage (silicosis) and which
has been classed by IARC as a probable carcinogen.
Refer servicing to qualified personnel.
The refractory ceramic materials are located in the door, and in the chamber of the furnace. Tests
performed by the manufacturer indicate that there is no significant risk of exposure to dust or respirable
refractory ceramic fiber resulting from operation of the equipment under normal conditions. However,
there may be a risk of exposure to respirable refractory ceramic dust or fiber when repairing or maintaining
the insulating materials, or when otherwise disturbing the materials in a manner which causes release of
dust or fibers therefrom. Through the use of proper handling procedures you can work safely with these
insulating materials and minimize any exposure. Accordingly, before you repair or replace any insulating
materials, or perform any other servicing on this product which could disturb or cause exposure to dust
from insulating materials, you should consult the appropriate Material Safety Data Sheets (MSDS’s) for
such products with respect to proper handling and appropriate protective equipment. For additional