Problem Solving Guide - Barnstead F46110CM Operation Manual

The following pages are intended to help you resolve functional problems with your furnace.
Thermolyne is always available to assist you with problems. If this guide does not direct you to your specific
problem, call or write Barnstead/Thermolyne at (1-800-553-0039).
PROBLEM
Inaccurate temperatures.
Repeated element burn-out.
"OR" displayed.
Slow heat-up.
Building or laboratory
main fuses blow or
circuit breakers trip.
CH. C, CH.. H, Err-r
displayed.
Probelm Solving Guide
POSSIBLE CAUSES
Contaminated themocouple.
Continuous operation
below 800°C.
Heating element
contamination.
Open thermocouple.
Operating 240V furnace
on 208V supply.
Furnace chamber overloaded.
Fuses or breakers not
properly rated to
furnace electrical
requirements.
CORRECTIVE ACTION
Replace thermocouple.
Do not continuously
operate below 800°C.
Contact Barnstead/Thermolyne
Replace thermocouple.
Increase voltage to
proper level.
Lighten load.
Install service line of sufficient
size to match furnace
electrical requirements. Contact
Barnstead|Thermolyne for
assistance.
Contact
Barnstead/Thermolyne
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