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8. Troubleshooting
When a malfunction is suspected
If any of the symptoms below occurs
Symptom
Check
The unit is not activated even
if the power is turned on
z
Check if the power cord is connected to the power supply or to
an outlet securely.
z
Check if power outage is occurring.
Temperature does not rise.
z
Check if the set temperature is below that in the bath.
z
Check if the power supply voltage has declined.
z
Check if the ambient temperature is low.
z
Check if cooling load for inside the bath is too large.
Temperature fluctuates during
operation.
z
Check if the set temperature is appropriate.
z
Check if the power supply voltage has declined.
z
Check if ambient temperature fluctuates widely.
z
Check if cooling load for inside the bath is too large.
Displayed temperature differs
from the measurement.
z
Check if the calibration offset setting is other than “0”. Set it to
“0.”
Confirm settings in “Useful functions (calibration offset
function)” in page 31.
◆
If the symptom does not match any of the above, immediately turn the power switch on the
main unit off, pull out the power cord (plug) from the power supply and contact your dealer or
one of our sales offices.
