HEC-OM-O018-A
Chapter 5 Operation
5.2 Alarms
5-15
5.2.2 Troubleshooting
Table 5-4 Troubleshooting
Code
Cause Countermeasure
High-level electric noise is applied to
the power supply line, ground line
and/or signal line.
Move the product to an environment with
less noise and restart.
If no failure occurs, the noise caused the
alarm.
The power supply voltage to the
system is not correct.
Confirm that the power supply voltage is
100~240VAC.
Confirm that the Bath liquid is not
excessively heated.
The Bath liquid is excessively heated.
Confirm that the Bath liquid level is not too
low.
The facility water is cutoff or its flow
rate is not enough.
Supply the appropriate flow rate of facility
water.
Water level in the bath is
low.
Increase the water level.
Foreign matter is caught in
the float, causing operation
failure of the float.
Clean the tank to remove the foreign
matter or replace the level switch.
Contact failure of the
thermostat and the level
switch connector.
If you still have an error after pulling the
connector out and plugging it back in,
replace the level switch or send the
product to SMC for repair.
Level switch is not mounted
vertically. Float does not
move.
If the mounting surface is not horizontal,
send the product to SMC for repair.
Level
Switch
(*)
Level switch failure
If you raise the float and supply power,
and you still have an error, replace the
level switch.
Facility water flow rate is
out of specification range.
(3-7L/min)
Correct the facility water flow rate within
the specification range.
Facility water flow
temperature is out of
specification range.
(10-35
o
C)
Correct the facility water temperature
within the specification range.
Ambient temperature is too
high. (out of 10-35
o
C) (out
of 35-85%)
Correct the ambient temperature within
the specification range.
ALARM LED (red)
lights up.
Thermost
at
Thermostat of circuit failure
If you still have an error even after
correcting the above, send the product to
SMC for repair.
The EEPROM of Controller is broken
due to high-level electric noise.
ERR0
The writing frequency to the
EEPROM exceeds 0.1 million.
If the trouble cannot be solved even after
restart, contact SMC for repair.
ERR1
The EEPROM of the controller is
broken due to high-level electric
noise.
If the trouble cannot be solved even after
restart, contact SMC for repair.
*When you install the level switch (another sales goods).