62
Error code and
description
POSSIBLE CAUSES
POSSIBLE SOLUTIONS
E9:
Wired controller and IDU
communication fault
No address set for the IDU or IDU adress duplicated
Set an address for the IDU; duplicated IDU
addresses are not allowed in the same system.
Main/secondary wired controller not set when two wired
controllers
control one or multiple IDUs
Set one wired controller to secondary wired
controller.
The D1/D2 line sequence of secondary wired controller is
inconsistent with that of the main
wired controller
Exchange the D1/D2 line sequence of secondary
wired controller.
Wired controller damaged
Replace the wired controller.
IDU board fault
Replace the IDU board.
F7:
Wired controller
EEPROM fault
EEPROM data error
Press “MODE” + “MENU” + “TEMP UP” + “TEMP
DOWN” for more than 3 seconds to reset the wired
controller until the default status appears.
Wired controller damaged
Replace the wired controller.
For any “Group”, the
number of IDUs may
not be consist- ent with
the actual number of
connected IDUs.
D1/D2 communication wiring error or bad contact in
individual IDU.
IDU address has not been set or
duplicate address.
Check and adjust the D1/D2
communication line
Set the IDU address. No duplicate IDU addresses in
the same system.
Main-secondary wired controllers
have not been set.
Set one wired controller to be the secondary wired
controller.
Board failure in individual IDU.
Replace the board of affected IDU.
Summary of Contents for KCT-03 SRPS
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