Troubleshooting; Safety Device And Error Codes - Yamato DKG610 Instruction Manual

The unit has the self diagnostic function with a controller and a separate safety device.
Table below shows possible causes and measures when the safety device is triggered.
[Error codes]
When an operational error or a malfunction should occur, the alarm lamp on the control
panel comes on, an error code is displayed, and the alarm buzzer sounds. When an error
occurs, check the error code and immediately stop operating the unit. Note that a measured
temperature error will be notified only with indication and the alarm lamp will not sound and
the alarm lamp will not sound.
Safety device
Detection of
sensor error
Detection of SSR
short circuit
Detection of
heater
disconnection
Memory error
Internal
communication
error
Overheat
Measured
temperature error －－－－
Symptom
Alarm lamp on
indication
Alarm lamp on
indication
Alarm lamp on
indication
Alarm lamp on
indication
Alarm lamp on
indication
Alarm lamp on
indication
indication

8. Troubleshooting

Safety device and error codes

Possible causes and measures
 Disconnection or other errors in the
temperature sensor
Contact our service department.
 SSR short circuit
Contact our service department.
 Heater disconnection
 Current detecting element disconnection
or error
 Temperature fuse blown out
Contact our service department.
 Memory setting error
Contact our service department.
 Internal communication error, temp. input
circuit error
Contact our service department.
 Activation of overheat preventive unit
 Overheat preventive unit disconnection or
error
Check the set temperature.
If the unit does not reset, contact our
service department.
Measured temperature is out of display
range
Contact our service department.
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