Table of Contents
Advertisement
PROBLEM
Unit does not ignite
• Is the power on the water heater?
• Is the gas on?
when water goes through
• Is the flow rate over 1.9 L/min (0.5 GPM)? (p. 40)
the unit.
• Check for the filter on cold water inlet. (p. 45)
• Check for reverse connection and cross connection.
• If you use the remote controller and/or temperature controller, is the
• Check if the inlet temperature is too high.
The fan motor is still
• This is normal. After operation has stopped, the fan motor keeps running
spinning after operation
has stopped.
Abnormal sounds from
• Is the correct gas type of a machine installed? (p.6)
• Are the Dip switch settings for your altitude set correctly? (p.12)
tankless unit
• Check the flame quality. (p.45)
• Is the intake or exhaust vent blocked?
• Is the vent length and diameter correct? (p.15 or p.17)
• Is the manifold pressure set correctly? (p.4)
• Is there enough clearance between the air intake and exhaust when
• If multiple units are installed, are the clearances between the exhaust and
Controller does not
• Make sure the unit is supplied with power.
display anything when
NOTICE:
the power button is
When the unit has not operated for five minutes or more, the display of the
turned on.
controllers 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
• Please see p. 49 to 52.
displayed.
How are the unit
• For an Easy-Link system, the Parent unit is always labeled #1 and all other
numbers assigned?
• To check which numbers are assigned to which Child units, push the
SOLUTIONS
power button turned on?
from 15 to 70 seconds in order to re-ignite quickly, as well as purge all the
exhaust gas out of the flue.
separate penetrations are used? (p.20 to 22)
intakes met? (p.21)
Temperature controller
subsequent Child units are numbered randomly. Renumbering of units
can be done so that they are numbered any way you like. Press and hold
the increase buttom on all Child units for at least 5 seconds. Zero will be
displayed on all Child Units. Then press the increase button in the order
you want them numbered.
increase button on the computer board of any Child unit as shown below.
The unit number will be displayed on the temperature controller of the
Child unit and/or the remote controller of the Child unit, if installed. (Refer
to p. 29 to 32.)
48
Page
Owner's Guide
Troubleshooting
When the remote
controller turned
ON, STAND BY LED
is lit.
Button to check unit numbers
Advertisement
Table of Contents
