Table of Contents
Advertisement
PROBLEM
Controller does not
display anything when
the power button is
turned on.
An ERROR code is
displayed.
How are the unit
numbers assigned?
• The units have self-diagnostic functions for safety and convenience when troubleshooting.
• If there is a problem with the installation or the unit, the error code will be displayed on the built-in
controller and remote controller. The green LED on the computer board will flash in a pattern shown on the
next page.
• Consult the table on the following pages for the description of each error code.
Error code indicator on the built -in
temperature controller
Error code indicator on the remote
controller
• Make sure the unit is supplied with power.
• Make sure the connection to the unit is correct. (pp. 36 and 37)
NOTICE:
When the unit has not operated for five minutes or more, the display of the
controllers turns off to conserve energy.
Built-in controller
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.
• Please see pp. 58 to 61.
• 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
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 pp. 38 and 39.)
ERROR CODES
140H/240H/340H
Error code on the computer board
Indicated by 1/2-second flashes on the Green LED.
58
Page
SOLUTIONS
When the
controller turned
ON, STAND BY LED
is lit.
Increase button to check
unit number
540H
Green LED
Owner's Guide
Troubleshooting
Green LED
Advertisement
Table of Contents
