5-2
Chapter 5. MAINTENANCE AND INSPECTION
Alarm code and description
When lockout occurs an alarm code is automatically displayed. When the alarm is
activated, the lockout sequence code and the alarm code are displayed alternately.
Display Alarm name Description
E0 Start check alarm The start check was not completed for some reason such
as momentary power failure or part malfunction.
E1 Interlock alarm Interlock occurred.
E2 False flame A false flame such as a remaining flame was detected.
E3 UV alarm A flame was detected even though the shutter output
was off.
E4 Ignition failure No flame was detected at the completion of the ignition
trial.
E5 Flame failure A flame failure occurred in the following sequence:
•
Pilot Stabilization
•
Main trial
•
RUN
EE Other When the cause of lockout cannot be identified:
•
In cases where power was turned off before CPU error
determination
•
In cases where vibration during transportation, etc.,
cause latch relay to switch to lockout
Handling Precautions
•
When the DISP switch is pressed while an alarm code is displayed, the display
changes to flame voltage.
•
When lockout is reset, the display reverts to its state before lockout.
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