
¥ Check to see that the LED is either on or blinking.
¥ LEDs are divided between those for A cycle and those for B cycle. This is determined by either an A or a B appearing in the
circuit code,for example LD301A or LD301B.
¥ Carry out inspections by examining the on/ blinking status of LEDs 301-304.
If the LED is not on even when the
power source is connected,the
microcomputer power source is
unconnected.
→
Inspection method 1
It is normal for LD301 to blink once
after the power source has been
inserted. If the unit stops when it is in
operation and LD301 blinks once,it is
possible that the power source has
been temporarily interrupted by
lightening or for some other reason.
Replace the control PCB if this occurs
frequently.
Abnormally stop is shown by the
number of times the LED blinks.
→
Inspection method 2
Thermistor abnormally is shown by
the number of times the LED blinks.
→
Inspection method 3
Communications error is shown
by the number of times the LED
blinks.
→
Inspection method 4
*In the case that an internal unit is
not connected,the number of
connected internal units is
shown by the number of times
the LED blinks. This is not a
abnormally. The internal unit
has no communications error
and is able to operate normally.
Normal operation
Normal operation
Normal operation
Normal operation
Normal off status or
unconnected
microcomputer power
source
Microcomputer reset
status (immediately
after inserting power
source or immediately
after power source
abnormally)
Abnormally stop
Thermistor abnormally
Communications error
Normal operation
OVL1 operation
OVL2 operation
OVL3 operation
LED number
Name
Case 1
Case 2
Case 3
Case 4
Case 5
Case 6
Case 7
Case 8
Case 9
LD301
Diagnosis
lamp 1
Off
Blinks once
Blinks
On
Off
(blinks once)
Off
On
Off
On
LD302
Diagnosis
lamp 2
Off
Off
Off
Blinks
Off
Off
Off
On
On
LD303
Communications
lamp
Off
Off
Off
Off
Blinks
Off
Off
Off
Off
LD304
Operation
lamp
Off
Off
Off
Off
Off (blinks)
On
On
On
On
Status
Checkpoints
C4D4
INDOOR 4
N
L
C3D3
INDOOR 3
C1D1
INDOOR 1
C2D2
INDOOR 2
COMPRESSOR
SIDE A.
COMPRESSOR
SIDE B.
L
D
3
0
4
A
L
D
3
0
3
A
L
D
3
0
2
A
L
D
3
0
1
A
L
D
3
0
4
B
L
D
3
0
3
B
L
D
3
0
2
B
L
D
3
0
1
B
SERVICE SWITCH
- 324 -
Summary of Contents for RAD-25NH5
Page 3: ... 0Ω 112 3 4 1 5 6 7 7 8 9 4 1 ...
Page 10: ...SPECIFICATIONS EU1013DD 2 8 ...
Page 11: ... EU1013DD 2 9 ...
Page 16: ... 16 ...
Page 17: ... 230V W 230V W 17 ...
Page 23: ... 0 1 2 3 4 2 5 6 7 8 2 9 0 0 23 ...
Page 24: ... 0 1 2 3 0 1 4 5 1 4 5 6 1 17 1 8 8 9 0 0 9 1 6 5 7 1 7 24 ...
Page 27: ... 0 1 0 234 5 6 7 8 3 3 9 6 1 6 3 1 9 2 2 6 6 1 6 7 1 1 5 1 1A B 8 6 C 9 27 ...
Page 29: ... 0 1 2 0 3 4 5 3 6 7 8 9 88 3 3 3 0 3 6 A 8 4 B C CAUTION 9 9 C 9 9 0 3 B B 3 C B C C 29 ...
Page 31: ... 0 1 2 0 3 4 5 6 7 4 8 5 5 9 5 5 5 5 6 9 5 4 8 5 9 5 2 A 5 3 31 ...
Page 33: ... 01 21 3 4444 4444 4444 5 6 7 3 3 3 3 3 8 90 7 0 3 3 9A B B C C DA 9A B 3 3 8 E F G 3 33 ...
Page 36: ... FULL DUCT SEMI DUCT NON DUCT Setting of switches 1 High static pressure switch 36 ...
Page 57: ... 011 2 3 1 4 5 2 6 6 7 4 895 9 9 9 6 6 3 0 12 34 A B10A3C 7 5 1 1 D 2 57 ...
Page 126: ... 126 ...
Page 127: ... 127 ...
Page 132: ... φ φ 0 1 2 1 2 3 1 132 ...
Page 133: ... φ φ Suspension Boite 012 34 5 67 34 5 67 8 9 8 8 8 133 ...
Page 134: ... 1 φ φ φ6 35 134 ...
Page 136: ... 0 1 0 2 3 4 0 2 1 0 5 6 1 61 3 1 4 φ3 φ φ 136 ...
Page 143: ... 0 1 1 0 2 2 3 4 4 5 0 6 7 62 8 6 7862 0 9 0 9 2 2 2 M 143 ...
Page 144: ... 144 ...
Page 145: ... MOTEUR DE VENTILATEUR MOTEUR D AUTO BALAYAGE RAD BD MOTEUR D ENTRAINEMENT 145 ...
Page 146: ... 146 ...
Page 147: ... 0 1 2 2 3 4 2 1 2 5 2 6 7 0 2 8 147 ...
Page 148: ... 148 ...
Page 149: ... 0 0 0 1 2 3 4 1 2 3 1 2 3 1 2 3 5 149 ...
Page 150: ... μ μ 150 ...
Page 151: ... μ μ 0123 151 ...
Page 183: ... 0 1 2 3 4 4 5 1 6 7 1 0 83 9 1 8 207 ...
Page 184: ... 0 1 2 3 4 5 6 7 8 9 A B C 0 209 ...
Page 185: ... 0 1 2 330 4 5 6 7 6 8 9 0 6 8 6 8 9 0 6 8 7 7 7 8 3 2 33 5 A BC 3 D 66EF 211 ...
Page 189: ... 0 123 4 5 6 7 8 9 0 6 9 218 ...
Page 190: ... 0 1 2 3 452 6 7829 5 8 6 226 0 A 0 219 ...
Page 193: ... 01 2 3 4 5 1 4 1 6 7 8 1 91 6 9 1 8 8 1 5 01 4 1 2 4 1 94 1 0 4 9 1 2 6 99 1 8 8 1 8 1 222 ...
Page 203: ... 0 1 232 ...
Page 208: ... AUTO SWING FUNCTION 238 ...
Page 209: ... 239 ...
Page 213: ... 0 1 2 4 5 0 6 5 5 2 4 2 4 7 8 8 7 9 524 0 524 0 524 0 243 ...
Page 214: ... 0 1 2 3 4 3 3 3 3 4 3 3 3 3 3 3 244 ...
Page 215: ... A 0 1 1 1 2 2 3 A 4 6 1 3 A 4 7 869 4 4 4 869 4 4 4 869 4 4 4 245 ...
Page 216: ... 0 1 234 5 1 6 0 7 8 9 7 9 7 6 6 2 7 7 246 ...
Page 221: ... 0 1 1 1 251 ...
Page 223: ... Mode Refroidissement 0 1 2 33 4 5 63 7 8 4 5 A 53 B B 4 A 53 B B C 8 253 ...
Page 224: ...1 Reset Circuit 0 1 2 2 2 2 3 4 5 6 5 r 5 6 5 4 4 254 ...
Page 228: ... 0 1 2 3 3 4 56 37 3 3 8 2 8 8 8 3 3 3 2 3 29 3 3 3 2 2 3 3 2 3 3 258 ...
Page 248: ... 0 1 2 3 1 2 4 4 4 5 6 7 4 8 4 9 8 8 4 278 ...
Page 249: ... 0 1 2 0 3 0 0 0 45 6 7 1 0 5 0 0 8 9 0 8 8 1 A 279 ...
Page 253: ... 0 1 1 1 0 1 1 1 2 3 456 2 3 456 2 3 456 2 3 456 7 8 9 0 7 8 9 0 9 9 9 9 3 9 5 9 9 5 3 283 ...
Page 257: ...3 Circuit de module de puissance 01 2 0 3 4 56 567 3 89 40 7 6 0 2 287 ...
Page 259: ... 0 1 2 3 0 4 5 6 5 5 6 5 7 8 8 8 9 0 7 8 8 8 9 0 0 7 8 8 4 8 0 8 4 8 8 0 1 2 3 8 8 9 289 ...
Page 260: ... 0 0 1 0 0 0 0 0 2 2 2 0 3 2 345 52 3 2 6 6 6 6 FAN HIC ABS SPM2B SPM2A 290 ...
Page 268: ... 0 1 2 2 3 2 2 4 4 4 4 4 0 21 5 5 5 65 7 8 9 298 ...
Page 269: ... 0 1 2 3 4 5 1 1 2 6 6 0 2 6 1 1 7 6 0 1 18 8 4 5 1 9 2 1 1 1 18 8 4 8 2 6 1 1 3 2 9 5 299 ...
Page 272: ... 0 1 2 1 0 1 3 41 3 41 1 2 1 302 ...
Page 273: ... 0 12 344 0 12 344 5 5 36 1 7 38 1 36 1 39 1 39 1 3 1 38 1 303 ...
Page 276: ... 0 12 3 0 2 3 0 3 0 4 5 3 6 7 6 6 7 6 6 7 6 6 7 6 4 8 8 49 4 4 4 4 49 4 4 4 4 306 ...
Page 277: ... 0 123 4 023 4 4 4 5 6 7 8 7 7 8 7 7 8 7 7 8 7 5 0 9 0 9 307 ...
Page 278: ...7 Power Factor Control Circuit 308 ...
Page 279: ...7 Circuit de contr le facteur de puissance 309 ...
Page 280: ... 310 ...
Page 281: ... 0 1 2 3 3 2 0 4 3 5 1 1 1 3 3 311 ...
Page 282: ... 0 1 2 312 ...
Page 284: ...AUTO FRESH DEFROSTING AUTO OPERATION 01 1 314 ...
Page 285: ... 0 1 2 3 0 45 3 0 3 0 65 65 787 65 797 6 6 315 ...
Page 286: ...AT STARTING OPERATION OTHERS 0 1 0 2 2 316 ...
Page 287: ...MISE EN MARCHE 0 1 2 1 3 4 2 2 AUTRES 1 0 3 5 0 1 1 6 1 6 0 2 1 6 1 6 0 7 4 6 7 4 0 2 0 317 ...
Page 288: ... 318 ...
Page 289: ... 0 12 12 319 ...
Page 290: ... 0 0 1 2 3 4 5 5 0 φ 230 3 6 2 7 8 9 1 1 1 2 7 0 ー 8 9 8 9 ground 2 7 0 5 5 0 5 4 320 ...
Page 293: ... 0 1 2 2 3456 22 75 7 8 9 8 0 P 2 U 7 97 8 7 6 3456 2 2 2 2 81 8 323 ...
Page 296: ... 0 1 0 0 0 23 1 23 1 326 ...
Page 297: ... 0 1 2 1 327 ...
Page 302: ... 337 012 132 452 012 132 62 7 0128 132 442 428 452 4428 452 018 132 62 6 9 ...
Page 304: ... 340 ...
Page 305: ... 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 341 ...
Page 306: ... 342 ...
Page 307: ... 0 343 ...
Page 312: ... 0 0 0 1 1 1 0 0 0 0 1 0 0 0 0 0 1 0 2 3 2 2 3 2 0 4 3 0 0 0 4 2 348 ...
Page 316: ... 0 0 1 5 352 ...
Page 317: ... 0 1 2 03 1 5 353 ...
Page 319: ... 1 5 1 5 355 ...
Page 321: ... 0 1 2 1 3 4 5 3 6 5 3 5 7 8 9 8 3 8 3 38 3 33 3 5 5 357 ...
Page 322: ... 0 1 0 1 2 3 4 1 0 1 0 1 1 1 0 0 00 2 3 5 5 6 7 7 7 7 7 7 7 7 0 0 358 ...
Page 327: ... 0 0 0 1 2 363 ...
Page 329: ... 0 1 2 3 2 4 5 2 6 44 47 8 2 2 9 9 1 9 4 7 7 5 2 6 44 8 2 2 4 7 4 47 9 1 9 365 ...
Page 330: ... 0 1 2 0 1 3 3 4 5 5 5 5 5 5 5 5 366 ...
Page 335: ... 0 0 0 1 2 371 ...
Page 336: ... 372 ...
Page 338: ... 374 ...
Page 340: ... 376 ...
Page 342: ... 378 ...
Page 346: ... 382 ...
Page 353: ... 389 ...
Page 354: ... 390 ...
Page 355: ... 391 ...
Page 356: ... 392 ...
Page 357: ... 393 ...
Page 358: ... 394 ...
Page 359: ... 395 ...
Page 360: ... 396 ...
Page 361: ... 397 ...
Page 362: ... 398 ...
Page 363: ... 399 ...
Page 364: ... 400 ...
Page 365: ... 401 ...
Page 366: ... 402 ...
Page 367: ... 403 ...