8-1-2. Reverse phase/missing phase detection - P4 indicated if abnormal
1. To check the power to be used for 3 phase power compressor if the power is on.
If there is any change of order for 3 phase L1(R)-L2(S )-L3(T) (reverse phase) or the power is not on,
Er and P4 are indicated alternately and the air conditioner is kept to stop.
1) L1(R)-L2(S) phase/L1(R)-L3(T) phase/L2(S)-L3(T)phase are checked.
2) If there is any terminal not having the normal voltage, check the external power of air conditioner for action.
3) If the 3 phase power is normal, it is the phase power is changed. Change two wires of incoming of power from
external side or incoming part of air conditioner.
For example, change L1(R) with L2(S).
4) Press reset key (K3) after above check and check the power again.
5) If there is abnormal condition even after one more check, check the color of 3 phase power.
If there is no abnormal as a result of check, replace the PCB.
- 167 -
Troubleshooting
K1
K2
K3
K4
Display
Reset key
wire for 3 phase
power check
indoor power
supply line
single phase
AC220V supply
line
3 phase power
supply line
communication line
clamp
DB98-17816A(1)_8 3/2/04 9:34 AM Page 167
Summary of Contents for DVM Series
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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 ...