29
Other
Problems
What to do
Display Window
The Heater stops burning
during operation.
Are the gas and water supply valves fully open?
Is the water supply cut off?
Is the hot water fixture sufficiently open?
Is the gas being cut off by the gas meter?
(Can other gas devices such as stoves be used?)
(For LP) Is there enough gas in the tank?
(Can other gas devices such as stoves be used?)
White smoke comes out of the
exhaust vent on a cold day.
This is normal. The white smoke is actually steam.
The hot water is turbid.
This is harmless. Small bubbles appear as the air
in the water is heated and depressurized rapidly to
atmospheric pressure.
The water appears blue.
The bath tub/wash-basin
has turned blue.
Coloration to a blue color may be noticed from small
traces of copper ion contained in the water and fat
(furring). However, there are not problems concerning
health. Coloration of the bath tub/wash-basin can be
prevented by cleaning frequently.
Sounds
Problems
What to do
Display Window
The fan can be heard after
operation is stopped.
A motor can be heard when turning
the unit ON or OFF, when opening
or closing a fixture, or after the unit
has been running for a while.
These noises indicate the proper operation of devices
which are designed to let the unit reignite more
quickly, and ensure the water temperature is stable.
The fan can be heard when
it is very cold outside.
The fan may run to prevent freezing.
There is a buzzing, beeping
or humming noise emitting
from the unit.
This noise is a normal function of the unit.
The valves that control the water flow through the unit
move during operation and also when the unit is not
heating water.
Loud rumbling noise on
start up or during operation
emitting from the unit.
The unit may need adjustments done for installations
higher than 2000ft above sea level. Please contact
your installer or Noritz to verify the unit dip switches
are set correctly for your installation.
A warranty registration card is included separately.
Be sure that the plumber, date of purchase and other necessary items are filled in.
Read the content carefully, and keep the warranty card in a safe place.
For repairs after the warranty period, there will be a charge on any service, and service will only
be performed if the unit is deemed repairable.
Follow-up Service-1
Requesting Service
Period of Time for Stocking Repair Parts
Warranty
First follow the instructions in the troubleshooting section (pages 24 - 28).
If the error is not corrected, contact Noritz America Technical Support at 866-766-7489 or
http://support.noritz.com/.
* A request for service may be rejected if the water heater is installed
in a location where working on the unit may be dangerous. Contact a
plumber.
We will need to know:
The Model
.................
(check the rating plate)
*See page 4 for the location of the label
Date of purchase
......(see the warranty)
Details of problem
....
(flashing error codes,
etc., in much detail as possible)
Your name, address, and telephone number
Desired date of visit
Noritz will stock repair and maintenance parts for this unit for the time period from the date of
the production date as follows: twelve (12) years for the heat exchanger and ten (10) years for
remaining parts.
Reinstallation
If you want to reinstall the unit at a different location, confirm that the gas and power supply
indicated on the rating plate are available at the new location. If you are not sure, consult the
local utility company.
