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HEC-OM-S002
Chapter 5 Operation
5.2 Alarms
5-14
Table 5-4 Troubleshooting (continue)
Code
Cause
Countermeasure
The temperature sensor is broken
(or the cable is disconnected).
Check if the cable is disconnected. If the
trouble cannot be solved even after no
disconnection is confirmed, confirm there
is no broken wire. If the wire is broken,
contact SMC for repair.
The temperature sensor is
short-circuited.
Confirm that the temp sensor and its cable
are short-circuited. If they are
short-circuited, contact SMC for repair.
The internal temp of this product is
too high, and the DC power supply is
not working properly.
Check that the air vents are not plugged.
Malfunction of the DC power supply
If the trouble cannot be solved even after
the product is restarted 3 or 4 min. after,
contact SMC for repair.
Confirm that an instantaneous power
supply cutoff has not occurred at frequent
rate.
The operation and
display panel
doesn’t light up,
or the display
light off.
The circuit protector of this product or
GFCI which is installed on primary
side of the unit has been tripped.
Confirm that a ground leakage has not
occurred. If the trouble cannot be solved
even after the rpoduct is restarted, contact
SMC for repair.
Level switch connector
ALARM LED (Red LED)
No Error
Error
Level switch
(Accessory)