- 188 -
Troubleshooting
8
8-2-22. Communication error in tracking
Check by comparing of set values of installed
numbers of indoor units on outdoor unit
PCB with actual installed numbers.
Press reset key (K3) on the outdoor unit
PCB to check the display part and then
check the indoor unit numbers with
response to the tracking.
Remove the communication cable from
outdoor unit to indoor unit and measure
two lines of outdoor unit side with scope?
Is there no response of indoor unit
on display part during tracking?
Reconnect the communication line from
outdoor unit to indoor unit and check the
communication line changing (it must be
not change F1 and F2) and then reconnect
one by one to locate the indoor unit
obstructing the communication,
and then replace the PCB.
The voltage between
two lines is wave of DC±0.7V as
shown in the following:
Is the numbers of indoor
units installed same as those of set values on
the setting switch?
Set the installed numbers of indoor
units on outdoor unit correctly and then press
reset key (K3) on the outdoor
unit PCB to track indoor units again.
Locate the indoor unit having the
communication error after 2 minute and check
the duplication of PCB address.
(If the address of indoor unit is
duplicated, communication error occurs.)
- In such a case the communication error
appears from more than 2 sets
of indoor units whose addresses
are wrong.
If there is no trouble in the address, replace the
PCB after checking the communication cable.
Check the outdoor unit communication
cable of PCB and replace the PCB.
Outdoor unit display
Indoor unit display
Judgment method
Causes
(Operation)
(Timer)
(Fan)
(Filter)
(Removing frost)
- Mismatching of the indoor unit numbers set with those communicated during
-
outdoor unit tracking.
- Communication error between indoor unit and outdoor unit, and switch setting
-
error for installed numbers.
No
Yes
Yes
No
No
Yes
DB98-17816A(1)_8 3/2/04 9:35 AM Page 188
Summary of Contents for DVM Series
Page 76: ... 75 Memo ...
Page 112: ......
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Page 156: ... 155 Memo ...
Page 280: ... 279 Exploded Views and Parts List 31 1 56 1 31 5 31 4 31 3 31 2 56 2 57 ...
Page 281: ... 280 Exploded Views and Parts List 9 F Type cont 31 1 56 1 31 5 31 4 31 3 31 2 56 2 57 ...
Page 285: ... 284 Exploded Views and Parts List 9 ...
Page 287: ... 286 Exploded Views and Parts List 9 31 1 31 4 31 2 31 5 31 6 31 3 57 1 57 2 58 G Type cont ...
Page 291: ... 290 Exploded Views and Parts List 9 ...
Page 292: ... 291 Exploded Views and Parts List 31 1 31 6 31 5 31 4 31 2 31 3 62 1 62 2 63 1 63 2 ...
Page 298: ... 297 Exploded Views and Parts List 31 1 31 6 31 5 31 4 31 2 61 1 61 2 62 1 65 2 31 3 ...
Page 358: ... 357 Memo ...
Page 361: ... 360 Wiring Diagram 10 10 1 2 4 way cassette type Cooling only AVMCC ...
Page 362: ... 361 Heat pump AVMCH ...
Page 369: ... 368 Wiring Diagram 10 070F This Document can not be used without Samsung s authorization ...
Page 370: ... 369 Wiring Diagram 080 100 This Document can not be used without Samsung s authorization ...
Page 371: ... 370 Wiring Diagram 10 100F This Document can not be used without Samsung s authorization ...
Page 373: ... 372 Wiring Diagram 10 080 100 This Document can not be used without Samsung s authorization ...
Page 374: ... 373 Wiring Diagram 100F This Document can not be used without Samsung s authorization ...
Page 385: ... 384 Schematic Diagram 11 050 This Document can not be used without Samsung s authorization ...
Page 389: ... 388 Memo ...