John Wood Takagi - 240H-340H-540H - Manual (Page 43)

43
Page
PROBLEM SOLUTIONS
W
ATER HE
ATER
Unit does not ignite
when water goes
through the unit.
• Is the flow rate over 1.9 L/min (0.5 GPM)? (p. 36)
• Check for the filter on cold water inlet. (p. 41)
• Check for reverse connection and cross connection.
• If you use the remote controller and/or temperature controller, is
the power button turned on?
• Check if the inlet temperature is too high.
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.
Temper
atur
e c
on
tr
olle
r and
Remot
e c
on
tr
oller
Controller does not
display anything when
the power button is
turned on.
• Make sure the unit is supplied with power.
NOTICE:
When the unit has not operated for five minutes or more, the display
of the controllers turns off to conserve energy.
Although the controller of the parent unit will be displayed 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. 44-46.
EAS
Y-LINK
SY
STEM
T-H3-D
V /
540H
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 remote controller. (Refer
to p. 26-29)
Butt on to check unit numbers
When the remote
controller turned
ON, STAND BY LED
is lit.
Temperature controller
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Owner's Guide