ecocool 150R
Operating Manual
Page 48
www.grantinstruments.com
Symptom
Possible cause
Action required
Display shows
“Internal/External
Temp Diff Too
Big”
There is a
temperature
difference of more
than 5 degrees
between the internal
and external probe
Check the external probe is properly connected
at the rear panel.
Check the external probe is correctly positioned
in the bath liquid and circulation is not
restricted.
If the external probe is not required, select the
internal probe using the Settings menu
Display shows
“Overheating-
Powe
r 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 Instruments.
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 Instruments.
Display shows
“Service required
01”
Faulty fuse(s), relay
or heater element
Have a competent person check the product or
contact Grant Instruments.
Display shows
“Service required
02”
Pump or propeller is
obstructed
Faulty motor
Remove obstruction.
Have a competent person check the product or
contact Grant Instruments.
Display shows
“Cross-check
Failure”
Internal Circuit Board
fault
Have a competent person check the product or
contact Grant Instruments.
For any other errors or service requests, please contact Grant Instruments
[email protected]
