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