Installation Guide
40 Page
PROBLEM SOLUTIONS
WATER HEATER
Unit does not ignite 
when water goes 
through the unit.
 Is the flow rate over 0.5 GPM (1.9 L/min)? (p. 33)
 Check the filter on cold water inlet. (p. 38)
 Check for reverse connection and cross connection.
 If you use the remote controller, is the power button turned on?
 Check if the inlet water temperature is too high. If it is too close to 
the set temperature, the water heater will not activate.
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 (USA)
1-888-479-8324 (CANADA).
and REMOTE CONTROLLER
Built-in and remote 
controller do not 
display anything when 
the power button is 
turned on.
 Make sure the unit is supplied with power.
 For the remote controller: Make sure the connection to the unit is 
correct. (p. 22 and 23)
When the 
controller is turned 
ON, STAND BY LED 
is lit.
Buit-in controller
 When the unit has not operated for five minutes or more, the 
display turns off to conserve energy.
 Although the controller of the parent unit will display the set 
temperature at the Easy-Link System, the controller of the child 
unit will not display the set temperature.
An ERROR code is 
displayed.
 Please see p. 42 and 43.
EASY-LINK SYSTEM
510C model only
How are the unit 
numbers assigned?
 For an Easy-Link System, the Parent unit is always labeled #1 and all 
other subsequent Child units are numbered randomly.
 To check which numbers are assigned to which Child units, push the 
button on the computer board of any Child unit as shown below. 
The unit number will be displayed on the built-in controller of each 
Child unit. (Refer to p. 25.)
Troubleshoong
Owner's Guide










