Service Diagnosis SiUS121736EA
137 Service Diagnosis
3. Service Diagnosis
3.1 RA Indoor Unit
3.1.1 ARC452 Series Remote Controller
Method 1 1. When TIMER CANCEL button is held down for 5 seconds, 00 is displayed on the temperature
display screen.
2. Press TIMER CANCEL button repeatedly until a long beep sounds.
îš„ The code indication changes in the sequence shown below.
ARC452A21, A23
Notes: 1. A short beep or two consecutive beeps indicate non-corresponding codes.
2. To return to the normal mode, hold down TIMER CANCEL button for 5 seconds. When the
remote controller is left untouched for 60 seconds, it also returns to the normal mode.
3. Not all the error codes are displayed. When you cannot find the error code, try method 2.
(→ Refer to page 138.)
No. Code No. Code No. Code
1 00 13 C7 25 UA
2 U4 14 A3 26 UH
3 L5 15 H8 27 P4
4 E6 16 H9 28 L3
5 H6 17 C9 29 L4
6 H0 18 C4 30 H7
7 A6 19 C5 31 U2
8 E7 20 J3 32 EA
9 U0 21 J6 33 AH
10 F3 22 E5 34 FA
11 A5 23 A1 35 H1
12 F6 24 E1 36 P9
(R23945)
TIMER CANCEL button
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