30
PROBLEM
SOLUTIONS
W
ATER HEA
TER
Abnormal sounds from
tankless unit
•
Is the correct gas type of the water heater installed?
•
Are the DIP switch settings for your altitude set correctly?(pg . 10)
•
Check the flame quality .
•
Is the intake or exhaust vent blocked?
•
Is the vent length and diameter correct?(pg . 11)
•
Is the manifold pressure set correctly(pg . 3)?
•
Is there enough clearance between the air intake and exhaust when separate
penetrations are used?
•
If multiple units are installed, are the clearance between the exhaust and intakes
met? (pg . 13 and 14)
Remote controller:
TM-RE30
/ TK-RE02
Remote controller does
not display anything
when the power button
is turned on .
•
Make sure the unit is supplied with power .
•
Make sure the connections to the unit are correct . (pg . 17)
TM-RE30 only:
If the green LED lights up, the remote controller has
been turned ON . When the unit has not operated for
five minutes or more, the display turns off to conserve
energy .
When ON,
green LED
is lit .
An ERROR code is
displayed .
•
Please see pg . 30 to
33 .
EASY
-LINK SYSTEM
(T
-D2-IN /
510 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 . Renumbering of water heaters
can be done so that they are numbered
any way you like . Press and hold the
INC button on all Child units for at least
5 seconds . Zero will be displayed on all
Child units . Then press INC button in
the order you want them numbered .
•
To check which numbers are assigned
to which Child units, push the increase
button on the computer board of any
Child unit as shown
on the right . The
unit number will be displayed on the
7-Seg LED . (Refer to pg . 18 to 20 .)
Button to check
unit numbers
7-Seg LED
