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Troubleshooting
1. Judgment method
1) In cooling mode (The following conditions shall be satisfied for more than 20 minutes)
2) In heating mode (All following conditions should be satisfied)
2)
(1) More than 2 indoor units are operating in THEMO ON heating mode.
2)
(2) Average of high pressure is more than 18kg/cm
2
.
2)
(3) 5 minutes after completion of the safety start.
2)
(4) The condition of ‘indoor unit T(EVAP_in) < T(room)+3°C and T(EVAP_out) < T(room)+3°C’ is maintained for 5 minutes.
2. Check method
1) Check whether the electronic expansion valve wire is connected correctly to the indoor unit PCB.
2) Open the electronic expansion valve kit to check whether the electronic expansion valve coil is correctly inserted.
3) Press the reset key (K3) of outdoor unit to check whether the same error appears.
2)
- If it is the close error, operate the related indoor unit.
2)
- If it is open error, put the related power off to check.
4) If there is no trouble for the above check items, replace the electronic expansion valve.
2)
- Since the replacement of electronic expansion valve is the inconvenient work to recover the all refrigerant in the system,
be sure to check the above items before replacing it.
8-2-28. Electronic expansion valve close error
Outdoor unit display
Indoor unit display
Judgment method
Causes
(Close error of xth electronic expansion valve)
(Operation)
(Timer)
(Fan)
(Filter)
(Removing frost)
- Refer to the following judgment method
- Indoor unit electronic expansion valve close error
x
Tcond, mid-Tair, out > 3°C
Tcond, out - Tair, out > 3°C
Tair, in - Teva, in > 4°C
Tair, in - Teva, out > 4°C
Compressor operating &
indoor unit operating and thermo on
Error contents
OK
OK
NO
OK
OK
Electronic expansion valve close error
DB98-17816A(1)_8 3/2/04 9:35 AM Page 195
Summary of Contents for DVM Series
Page 76: ... 75 Memo ...
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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 ...
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Page 385: ... 384 Schematic Diagram 11 050 This Document can not be used without Samsung s authorization ...
Page 389: ... 388 Memo ...