Service Diagnosis SiUS121827E
150 Part 6 Service Diagnosis
3. Service Diagnosis
3.1 ARC452 Series Wireless Remote Controller
3.1.1 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.
The code indication changes in the sequence shown below.
ARC452A21, A23
1. A short beep or two consecutive beeps indicate non-corresponding codes.
2. To return to the normal mode, hold TIMER CANCEL button down 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 151.
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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