Operating Manual Manual

30424 V6 TX150 & TXF200
Page 41 Operating Manual
www.grantinstruments.com
Symptom
Possible cause
Action required
Display shows
“Internal
Temperature
Probe Fault”
Faulty temperature
probe
Have a competent person check the probe for an
open or short circuit fault or contact Grant.
Display shows
“External
Temperature
Probe Fault”
External temperature
probe not plugged in
Faulty temperature
probe
Check the external probe is properly connected at
the rear panel.
Have a competent person check the probe for an
open or short circuit fault or contact Grant.
Display shows
“Program Fault”
One or more program
segments contains
an invalid setting or
could not be read
from the memory
Reload the program if it came from LabWise or edit
each segment on the unit (TXF200 only)
Display shows
“Overheating-
Power reduced ”
Heating water at or
near to boiling
without lid
Heating very large
volumes of liquid with
large thermal losses
Add a lid to reduce thermal losses and leave unit
running with the “Overheating” warning present. If
the alarm has not cleared within 1 hour contact
Grant.
Add measures to reduce thermal losses and leave
unit running with the “Overheating” warning present.
If the alarm has not cleared within 1 hour contact
Grant.
Display shows
“Service required
01”
Faulty fuse(s), relay
or heater element
Have a competent person check the product or
contact Grant.
Display shows
“Service required
02”
Pump or propeller is
obstructed
Faulty motor
Remove obstruction.
Have a competent person check the product or
contact Grant.
Display shows
“Cross-check
Failure”
PCB fault
Have a competent person check the product or
contact Grant.
For any other errors or service requests, please contact Grant Instruments service
department.