Owner's Guide
28
Part: XXXXX Rev XX
If there is a problem with the unit, a numerical error code will flash on
the remote controller.
If this occurs, take appropriate measures as listed below.
When an error code appears, the display and the operation light
will flash together.
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.
Error Code Cause Action
Ignition error Check whether the gas valve is open. Press the
operation button to turn the unit off, open a hot
water fixture, and turn the unit back on. If the
flashing number doesn't return the problem is
solved.
(Condensing
model only)
Clogging of neutralizer Contact the installer or DUX Service Department for
assistance.
Abnormal combustion,
low gas supply
pressure
Have a professional check the gas supply pressure.
Contact Dux 1300 365 115
(Condensing
model only)
The neutralizer needs
to be replaced soon.
The equipment can be used for awhile, but the
maximum hot water flow available from the unit will
be reduced. Contact the installer or DUX Service
Department for assistance.
(Condensing
model only)
The neutralizer has
reached the end of its
service life and must be
replaced.
The equipment cannot be used.
Contact the installer or DUX Service Department for
assistance.
Abnormal combustion Contact the installer or Dux Service Department for
assistance.
Main Controller
Flashing
Check for an Error Code
MAIN
ECM1D
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