40
8.
In the Event of Failure
Safety Device and Error Code
This unit has an automatic diagnosis function built in the controller and safety devices independent of
the controller. The table below shows the cause and the solution method when the safety device
operates.
Error Code
When an abnormal condition occurs, an error code appears and the alarm lamp lights in the controller,
the buzzer sounds simultaneously. Record the error code and turn off the power of device
immediately.
Safety Device
Notify
Cause/Solution
Sensor trouble
detection
“
ALARM
” lamp lights on,
“
Er.01
” appears
Temperature sensor is broken or
disconnected.
Make a call for service.
SSR short-circuit
detection
“
ALARM
” lamp lights on,
“
Er.02
” appears
Triac is in short-circuit
Make a call for service.
Heater
disconnecting
detection
“
ALARM
” lamp lights on,
“
Er.03
” appears
Heater is disconnected.
Make a call for service.
Memory error
“
ALARM
” lamp lights on,
“
Er.15
” appears
Failure in internal memory.
Make a call for service.
Internal
communication
error
“
ALARM
” lamp lights on,
“
Er.17
” appears
Failure in internal communication or
temperature inputting circuit.
Make a call for service.
Overheating
“
ALARM
” lamp lights on,
“
Er.19
” appears
Overheating prevention device is in
operation.
Reset the power supply, and then adjust
the
setting
temperature
of
the
overheating protection device.
If the state does not recover, make a call
for service.
Measurement
temperature error
“
ALARM
” lamp lights on,
“
----
” appears
Measurement value is out of display
range.
Make a call for service.