User Guide

47 Page
PROBLEM SOLUTIONS
WATER
HEATER
The fan motor is
still spinning after
operation has stopped.
 This is normal. After operation has stopped, the fan motor keeps
running from 15 to 70 seconds in order to re-ignite quickly, as well
as purge all the exhaust gas out of the flue.
Unit sounds abnormal
while in operation
 Contact the manufacturer at 1-877-737-2840.
BUILT-IN/REMOTE
CONTROLLER
Controller does not
display anything when
the power button is
turned on.
 Make sure the water heater is supplied with power.
 Make sure the connection to the water heater is correct. (p. 34)
When the controller is turned ON,
STAND BY LED is lit.
NOTICE:
When the water heater has not operated for five minutes or more,
the display of the controllers turns off to conserve energy.
An ERROR code is
displayed.
 Please see pp. 48 and 49.
Troubleshoong
Owner's Guide
ERROR CODES
 The water heater has self-diagnostics for safety and convenience when troubleshooting.
 If there is a problem with the water heater itself, or the installation of the unit, the error code will be
displayed on the temperature controller and remote controller.
 Consult with the table on the following pages for a description of each error code.
Error code indicator
on the built-in/remote
controller
Green LED
Error code on the computer board
Indicated by 1/2-second flashes on
the Green LED.
Example: If your unit has a “321” error code (which signifies an inlet thermistor failure)
 Indicator on the built-in controller 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 flashes every 1/2 second. The pattern will repeat with a three second delay between patterns.
Error code
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ern
Error Code
on the temperature
controller
Green LED
The number
of flashes
Flash paern
611
101 941 991
Four
Five
Six
510 551 721
031 701 711
311 321 341
391
111 121
One
Two
Three
0.5 sec. on, 0.5 sec. off 3 sec. off
0.5 sec. on,
0.5 sec. off
3 sec. off
on on
off
off