Barnstead 30400 Operation Manual page 43

Problem
Inaccurate.
Probable Causes
Contamination present from
previous burnout.
Wired improperly.
Oxidized or contaminated
thermocouple.
Poor thermocouple connections.
Improper loading.
Poor ventilation of base.
Control out of calibration.
P
ROBLEM
Corrective Action
Clean and/or replace insulation
material.
Check wiring diagram for
correct wiring of your furnace.
Replace thermocouple.
Tighten connections.
Use proper loading procedures.
Clear area around furnace base.
Contact customer service.
S
OLVING
43