Toshiba RAV-SM560AT-E Service Manual page 116

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2. Reading of CHECK monitor display
<7 segment display>
0 1 2 3
<FILTER data>
(Example) Filter signal is sent from No.1 and No.15 units under grouping operation
<CHECK data>
Unit No.
Room temp.sensor of No.1 is defective.
(Example)
In No.15, first the indoor heat exchanger sensor has failed.
Next, interconnection wire (bus communication line) of
indoor/outdoor is defective.
CHECK
UNIT
4 5 6 7 8
FILTER
CHECK
UNIT
UNIT
Check code detected at first
UNIT
After 3
seconds
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9 10 11 12 13
CHECK
UNIT
CHECK
Check code detected at last
CHECK
– 116 –
Hexadecimal
notation
Decimal notation
14 15
FILTER
There is no check
(Example)
data.
CHECK