OfiTE 2025 - Troubleshooting Guide; Troubleshooting Common Issues

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ote.com 50
Troubleshooting
Symptom Cause Remedy
Power
There is no
power to the
machine
The main power cord is
not plugged in.
The battery backup cable
is not plugged in.
The fuse for the main
power supply is blown.
The main circuit breaker
has tripped.
Make sure the main power cord(s) is
rmly plugged into the wall and the
machine.
Make sure the battery backup cable
is rmly plugged into the side of the
machine.
Check and replace the fuse, see 64.
Check and reset the breaker .
Heating / Cooling
The unit is
not heating
The heater switch is not on.
The heater circuit breaker
has tripped.
The Solid State Relay
(SSR) is bad.
The heat assembly is not
working.
Turn the heater switch on.
Check and reset the heater breaker.
Replace the SSR (Contact OFITE).
Check the wiring to the heat assembly
and correct if necessary (Contact
OFITE).
Replace the heater assembly (Contact
OFITE).
The unit is
overheating
The thermocouple is not
plugged in completely.
The thermocouple
assembly is damaged.
The temperature controller
is not programmed
correctly.
The hold light is lit on the
temperature controller.
The Eurotherm
temperature controller is
not working.
Check the thermocouple and make
sure the connections are secure.
Replace the thermocouple assembly.
Check the temperature ramp prole in
the software and/or on the Eurotherm
temperature controller.
Press the run/hold button until the light
goes off.
Replace the Eurotherm temperature
control (Contact OFITE).