Ð 260 Ð
¥ 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
Summary of Contents for RAD25QH4
Page 3: ... 0Ω 112 3 4 1 5 6 7 7 8 9 4 DANGER ...
Page 10: ... SPECIFICATIONS EU1013DD 2 ...
Page 11: ... EU1013DD 2 ...
Page 31: ... 0 1 2 3 1 4 5 6 4 7 8 9 4 1 2 1 0 ...
Page 32: ... 1 2 3 4 1 2 5 6 2 5 6 7 2 28 2 9 9 1 1 2 7 6 8 2 8 ...
Page 33: ... 0 1 0 1 1 1 0 1 1 2 3 4 0 5 3 6 7 3 6 7 8 3 39 3 3 8 7 9 3 9 2 2 1 2 2 ...
Page 35: ... 0 1 2 3 2 456 7 0 1 8 9 5 5 8 3 8 5 3 4 4 8 8 3 8 3 3 7 A 3 3B C 9 8 D ...
Page 127: ... 0 1 22 3 3 4 567 89 5 8 8 3 567 89 ...
Page 152: ... 0 1 0 2 3 5 6 1 7 6 6 3 5 3 5 8 9 9 ...
Page 154: ... A 0 11 2 3 1 1 3 1 3 4 4 5 A 6 8 3 1 11 1 1 1 5 A 6 9 ...
Page 162: ... Mode Refroidissement 0 1 2 3 4 55 6 7 85 9 6 7 A 75 1 B B 6 A 75 1 B B C 9 ...
Page 183: ... 0 1 2 3 4 0 3 4 5 1 5 5 6 7 8 1 5 1 9 1 0 5 1 9 9 5 ...
Page 184: ... 01 0 2 3 4 3 0 5 3 3 0 3 0 067 8 3 0 7 3 0 3 9 3 9 1 9 1 0 A 0 B ...
Page 188: ... 0 2 2 3 4 567 3 4 567 3 4 567 3 4 567 8 9 2 8 9 2 4 6 0 0 6 0 4 ...
Page 194: ... 1 2 3 4 5 6 7 6 6 7 6 8 9 9 9 8 9 9 9 8 9 9 5 9 9 5 9 9 A A 2 3 4 9 9 ...
Page 203: ... 0 1 0 0 2 0 3 3 4 3 3 5 5 0 0 0 0 5 5 0 5 0 1 32 6 6 6 76 0 8 9 0 0 0 0 ...
Page 204: ... 0 1 2 3 4 5 6 2 2 3 7 7 1 3 7 2 2 8 7 1 2 29 9 5 6 2 3 2 2 2 29 9 5 9 0 3 7 2 2 4 0 0 3 6 ...
Page 207: ... 0 1 2 1 0 1 3 41 3 41 1 2 1 ...
Page 211: ... 0 1 23 4 1 03 4 1 4 1 5 6 4 7 8 7 7 8 7 7 8 7 7 8 7 5 0 9 0 9 5 5 5 5 5 5 5 5 5 5 ...
Page 212: ... 0 1 0 234 0 5 134 5 0 0 5 0 0 5 6 7 8 9 8 8 9 8 8 9 8 8 9 8 6 1 1 0 0 ...
Page 214: ... 7 Circuit de contr le facteur de puissance 0 ...
Page 217: ... 0 0 1 2 3 4 ...
Page 221: ... AT STARTING OPERATION 0 0 OTHERS 1 2 1 3 2 0 0 ...
Page 226: ... 0 0 1234 5 5 6 7 8 8 0 0 0 7 0 9 0 0 2 0 50 0 0 0 0 0 0 9 0 0 0 0 0 0 0 5 0 0 0 0 0 0 ...
Page 228: ... FIXATION 0 1 2 3 1 40 0 1 2 3 1 1 6 2 3 1 22 7 8 9 2 3 1 6 8 2 40 0 2 3 1 0 0 6 ...
Page 230: ... 01234 54 567 8 94 4 4 8 8 2 8 8 7 FIXATION FIXATION ...
Page 232: ... 0 1 2 3 4 1 1 6 7 8 7 7 9 8 0 3 4 8 FIXATION 3 1 3 1 ...
Page 236: ... FIXATION 0 1 2 2 3 4 5 6 ...
Page 249: ... 0 1 1 234 354 64 234 354 74 8 2349 354 4 49 64 49 64 239 354 74 7 1 ...
Page 280: ...Ð 307 Ð MODEL RAD 25QH4 RAD 40QH4 MODELE 67 11 ...
Page 293: ...TC NO 0757EF RAF 25NH4 RAF 50NH4 RAD 25QH4 RAD 40QH4 RAM 70QH4 RAM 80QH4 ...