Grant Optima TX150 Mode D'emploi page 40

Stirrer motor not Unit is in Standby
rotating Mode
Stirring propeller or
pump impeller is
obstructed
Faulty motor
Display shows Over-temperature
"Over cut-out has operated
temperature
Alarm".
Display shows Liquid level has
"Low liquid dropped below
Alarm" minimum level
Display shows Faulty temperature
"Internal probe
temperature
probe Fault"
Display shows There is a
"Internal/External temperature
Temp Diff Too difference of more
Big" than 5 degrees
between the internal
and external probe
Display shows Heating water at or
"Overheating- near to boiling
Power reduced " without lid
Heating very large
volumes of liquid with
large thermal losses
Display shows Faulty fuse(s), relay
"Service required or heater element
01"
Display shows Pump or propellor is
"Service required obstructed
02" Faulty motor
30424 V3
Page 39
Highlight the Standby Icon on the control screen
and press S button to return to normal operation
Clear obstruction.
Have a competent person check the motor or
contact Grant.
Check the set temperature is correct and that the
over-temperature cut-out temperature is set at least
5°C above the set temperature (see section 5.2.6
for setting instructions).
If the over-temperature cut-out temperature is
correctly set but the unit still shows a "Cut-Out"
alarm then the unit has an internal fault and must be
repaired before it is used again.
Check that the liquid level in the bath is adequate
(see section 6.4 for minimum fill levels).
Have a competent person check the probe for an
open or short circuit fault or contact Grant.
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
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.
Have a competent person check the product or
contact Grant.
Remove obstruction.
Have a competent person check the product or
contact Grant
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TX150 & TXF200
Operating Manual