Owner’s Guide
24
Check for an Error Code
When a failure occurs, information relating to the
error flashes on the Status Display or optional
Remote Controller. At the same time, a buzzer will
be used. To stop the buzzer sound, the Operation
button must be turned off.
If this occurs, take appropriate measures as the
following list.
Status Display
(Condensing model only)
Error Code : (On the Remote Controller) 92
Cause : The neutralizer needs to be replaced soon.
Action : The Water Heater can be used for awhile,
but the maximum hot water flow available
from the Water Heater will be reduced.
Contact the installer or Dux Service
Department for assistance.
(Condensing model only)
Error Code : (On the Remote Controller) 93
Cause : The neutralizer has reached the end of its
service life and must be replaced.
Action : The Water Heater cannot be used. Contact
the installer or Dux Service Department for
assistance.
Error Code : 99
Cause : Abnormal combustion
Action : Contact the installer or Dux Service
Department for assistance.
Indication on the Status Display :
Cause : The outlet temperature is colder than set
temperature.
Action : Contact the installer or Dux Service
Department for assistance.
Indication on the Status Display :
Cause : This indication is not an error of unit.
If you try to supply a low flow of water
when the inlet water temperature is high,
hot water is not supplied sometimes
(combustion is automatically stopped and
the temperature of outlet water does not
become hot).
Error Code : 11
Cause : Ignition failure
Action : Check whether the gas valve is open. Press
the Operation button to turn the Water
Heater off, open a hot water fixture, and
turn the Water Heater back on. In this
error code, some products can clear the
error code simply by turning the hot water
fixture OFF, then ON again. If the blinking
number doesn’t return the problem is
solved.
(Condensing model only)
Error Code : (On the Remote Controller) 29
Cause : Clogging of neutralizer
Action : Contact the installer or Dux Service
Department for assistance.
Error Code : (On the Status Display)
901, 903, 908
(On the Remote Controller) 90
Cause : Abnormal combustion
Action : If the display continues, contact the
installer or Dux Service Department for
assistance.
Error Code : (On the Status Display)
902
(On the Remote Controller) 90
Cause : Abnormal combustion, low gas supply
pressure.
Action : Have a professional check the gas supply
pressure. Contact the installer or Dux
Service Department for assistance.
Contact Dux if:
• Any other error code appears.
• An error code is indicated again after the
above actions were followed.
• There are any other questions.
In some cases, you may be able to clear the error
code by turning the hot water fixtures OFF, then
ON again. If the error code still remains, contact
the installer or Dux Service Department for
assistance.
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SBB816U取説GQ-C2434WS DU#B.indd 24 2019/11/12 11:53:49
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