Installation Manual
– 36 –
EN
Stop operation
1
Set the rotary switches on the interface P.C. board of the outdoor unit back:
SW01 to [1], SW02 to [1] and SW03 to [1].
7-segment display
[A]
[U1]
[B]
[ ]
SW09
SW07
SW11
SW06
SW10
SW12 SW13
SW16
SW14
SW17
D600 D601 D602 D603 D604
SW04
SW05
SW15
SW01
SW02
SW03
SW30
D600 D601 D602 D603 D604
SW04
SW05
SW15
SW01
SW02
SW03
Interface P.C. board
Push switch
7-segment
display [A]
Push switch
7-segment
display [B]
Rotary switches
9
Troubleshooting
In addition to the CODE No. on the remote controller of an indoor unit, you can diagnose failure type of an outdoor unit
by checking the 7-segment display on the interface P.C. board.
Use the function for various checks.
Set every dip switch to OFF after checking.
7-Segment display and check code
* If a check code has an auxiliary code, the display indicates the check code for three seconds and the auxiliary code
for one second alternately.
Check code (indicated on the 7-segment display on the outdoor unit)
Indicated when SW01 = [1], SW02 = [1], and SW03 = [1].
Rotary switch setting
value
Indication
LED
SW01
SW02
SW03
1
1
1
Outdoor unit check code
A
Outdoor unit number
(U1)
B
Check code display*
Check code
Check code name
Indication on 7-segment display on the outdoor unit
Auxiliary code
E06
Number of indoor units which received normally
Decrease of number of indoor units
E07
—
Indoor / Outdoor communication circuit error
E08
Duplicated indoor addresses
Duplication of indoor addresses
E15
—
No indoor unit during automatic addressing
E16
00: Capacity over 01 or more: No. of connected units Number of connected capacity over / indoor units
E20
01: Other line outdoor connected
02: Other line indoor connected
Other line connected during automatic addressing
E31
IPDU quantity information*1
IPDU communication error
F04
—
TD sensor error
F06
—
TE sensor error
F07
—
TL sensor error
F08
—
TO sensor error
F12
—
TS sensor error
F13
—
TH sensor (Board installed) error
F15
—
Outdoor temp. sensor miswiring (TE, TL)
F16
—
Outdoor pressure sensor miswiring (Pd, Ps)
F23
—
Ps sensor error
F24
—
Pd sensor error
F31
—
Outdoor EEPROM error
H01
—
Compressor breakdown
D600
A
B
D601 D602 D603 D604
EN-71
EN-72
1FAN_IM_DHV0100301-00_EN.book Page 36 Saturday, November 4, 2017 2:39 PM