-
24
-
Trouble
Cause of trouble
Countermeasure
Earth leakage breaker is
activated when the power
switch is turned ON.
Earth leakage
Overcurrent
Stop operation and contact your local
dealer or closest customer service center.
Circulation not made even
when the power switch is
turned ON
（
No display on the
temperature controller
）
Power is not supplied.
Mains connector is not plugged into
outlet or not plugged into outlet
completely.
Residual current device is turned off.
Residual current device is impaired.
Temperature controller is impaired.
Power switch is impaired.
Turn on the breaker of distribution
board.
Plug main connector after turning off
residual current device and power switch.
Turn the residual current device on.
Stop operation and contact your local
dealer or closest customer service center.
Refrigeration unit does not
work.
High-pressure switch for refrigeration
unit or over load relay protection
Circuit works.
The thermal load on the refrigerator is
extremely large. Reduce the load.
Dirt adheres to the filter of refrigeration
unit.
Clean the filter.
（
Refer to the section “Maintenance and
checkup”)
The refrigerator protective timer is
operating.
To protect the refrigerator, it cannot be
turned ON for 120 sec once it is turned OFF.
Use the unit where the ambient
temperature is lower than 35
℃
.
Refrigeration unit is impaired.
Stop operation and contact your local
dealer or closest customer service center.
Setting temperature is not appropriate.
Check the setting temperature.
Refrigeration unit does not work.
Fan for refrigeration unit does not work.
Gas is leaking.
Stop operation and contact your local
dealer or closest customer service center.
The external temperature sensor is left
uninstalled outside the bath.
Install the external temperature sensor
inside the bath.
The temperature does not
reach the set value.
Temperature controller is impaired.
Refrigeration unit is impaired.
Too large heat generation load
Excessively high room temperature
When the ambient temperature is high,
lower it to 35
℃
or below.
Reduce the heat load on the refrigerator,
which is too large.
Water level lowers and cooling coil is
exposed, which makes the unit perform
over load operation.
Fill circulation liquid in low temperature
circulation bath.
P.8 Refer to “Installation Conditions.”
7
Troubleshooting
If you face the trouble that is not addressed in this manual,
please contact your local dealer or closest customer service center.
