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In the Event of Failure…
Failure indication and Its Contents
Others Indication
Cause Symptom
Countermeasure
Boiler drain
error
Boiler Water
Waste Error
Service Call
When the heater
operation water level input
kept OFF even if the time
for required to evaluate
the boiler water level error
passed after starting
water supply to the boiler
Check the solenoid
valve for drain and
drain path.
Coolant error
A Coolant Error
Service Call
When the state that
became boiler water
overflow input ON in the
float pipe continued
longer than coolant error
judgment time
Check the coolant
solenoid valve and
the coolant path.
Water level error
of boiler
Boiler Water
Level Error
Service Call
When the heater
operation water level input
kept OFF even if the time
for required to evaluate
the boiler water level error
passed after starting
water supply to the boiler
Check the
feedwater solenoid
valve and feedwater
path whether
manual drain cock is
opened or not.
Water level
meter of boiler
error
Boiler Water
Sensor Error
Service Call
When the condition of the
float contacting points in
the float pipe becomes
abnormal
All controls
of the heater
and solenoid
valve are
turned OFF.
Change the float
switch.
•
When an error occurs, confirm the error message shown at the message window, and call the shop from which you
made a purchase or our customer support center.
