Error Code On Remote Controller; Water Quality - Noritz ecoTOUGH NRC98-DV Owner's Manual

Troubleshooting-3
(Continued)
The water appears blue
The bath tub/wash-basin has turned
blue
Frequent water discharge from the
drain pipe.
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Damage to the water heater as a result
of poor water quality is not covered by
the Limited Warranty. To ensure full
warranty coverage, treat or condition
water that exceeds the target levels
provided in this table.
Source: EPA National Secondary Drinking Water
Regulations (40 CFR Part 143.3)
Check for an Error Code on the Remote Controller
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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.
Error Code
26
• 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.
• Condensation forms inside the unit during operation
and is discharged from the drain pipe.

Water Quality

Cause
Ignition error
Clogging of condensate
trap or drain pipe
Total Hardness*
Aluminum
Chloride
Copper
Iron
Manganese
pH
Total Dissolved Solids
Zinc
Sulfate ion
Residual chlorine
* Maximum limit suggested by Noritz.
Remote Controller
Action
Check whether the gas valve is open. Press the power
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.
Check to see if the condensate drain pipe is clogged
or frozen ( p.8)
Contact the installer or Noritz America Technical
Support for assistance.
: 200 mg/L (12 gpg) or less
: 0.05 to 0.2 mg/L or less
: 250 mg/L or less
: 1 mg/L or less
: 0.3 mg/L or less
: 0.05 mg/L or less
: 6.5 - 8.5
: 500 mg/L or less
: 5 mg/L or less
: 250 mg/L or less
: 4 mg/L or less
Flashing