Specifications

PROBLEM POSSIBLE CAUSES CORRECTIVE ACTION

Inaccurate temperatures. Contaminated thermocouple. Replace thermocouple.

Repeated element burnout. Continuous operation Do not continuously

below 800°C. operate below 800°C.

Contact Barnstead International.

Heating element contamination.

“OR” displayed. Open thermocouple. Replace thermocouple.

Slow heatup. Operating 240V furnace Increase voltage to

on 208V supply. proper level.

Furnace chamber overloaded. Lighten load.

Building or laboratory Fuses or breakers not Install service line of sufficient

main fuses blow or properly rated to size to match furnace

circuit breakers trip. furnace electrical electrical requirements. Contact

requirements. Barnstead International for

assistance.

Other errors displayed. Contact Barnstead International.

Troubleshooting