TR
OUBLE SHOO
TING
On-Demand Water Heater Installation Manual and Owner’s Guide
71
• The units have self-diagnostic functions for safety and convenience when troubleshooting.
• If there is a problem with the installation or the unit, the error code will be displayed on the built-in controller
or remote controller.
• Consult the table on the following pages for the description of each error code.
Computer board
Green LED flashes to indicate error code.
Error code indicator on
the remote controller
Error code indicator on
the built-in controller
-Single unit Installation-
Example: If your unit has the “321” error code (which signifies an inlet thermistor failure)
•
Indicator on the built-in controller
and/or remote controller:
“321” will be displayed on the screen.
•
Green LED on the computer board:
The green LED on the computer board will indicate this code with two flash-
es every 1/2 second. The pattern will repeat with a three second delay between patterns.
Error code
Green LED
on
on
on
on
on
on
off
off
off
off
off
321
Error Indication
Error Code
on the temperature
controller
Green LED
The number
of
flashes
Flash
pa
tt
ern
031 201 701 711
One
311 321 331 341
351 391 441
Two
051 111 121 211
Three
611 631 651 661
Four
101 921 931 991
Five
510 511 521 551 721
Six
on
on
off
off
0.5 sec. on, O.5 sec. off
3 sec. off
Error code
TROUBLE SHOOTING
Error code
Error code
Summary of Contents for 160X3P
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