– 82 –
Remarks:
When this unit were mean to be connected to mulƟ outdoor unit system, below diagnosis table shall be use.
If LD301 lit and at the same Ɵme LD302 blinks in a number of Ɵmes, this indicates thermistor faulty.
TIMER
LAMP
BLINKING
LD302
BLINKING
WIRELESS
REMOCON
CODE
WIRED
REMOCON
CODE
MEANING DETAILS MAIN CHECK POINT
4 Ɵmes 1 Ɵme
071
01
OVERHEAT THERMISTOR
4 Ɵmes 2 Ɵmes
072
01
DEFROST THERMISTOR
4 Ɵmes 3 Ɵmes
073
01
OUTDOOR TEMPERATURE THERMISTOR
4 Ɵmes 4 Ɵmes
074
01
NARROW PIPE THERMISTOR
(INDOOR NO.1)
4 Ɵmes 5 Ɵmes
075
01
WIDE PIPE THERMISTOR
(INDOOR NO.1)
4 Ɵmes 6 Ɵmes
076
01
NARROW PIPE THERMISTOR
(INDOOR NO.2)
4 Ɵmes 7 Ɵmes
077
01
WIDE PIPE THERMISTOR
(INDOOR NO.2)
4 Ɵmes 8 Ɵmes
078
01
NARROW PIPE THERMISTOR
(INDOOR NO.3)
4 Ɵmes 9 Ɵmes
079
01
WIDE PIPE THERMISTOR
(INDOOR NO.3)
4 Ɵmes 10 Ɵmes
080
01
NARROW PIPE THERMISTOR
(INDOOR NO.4)
4 Ɵ
mes 11 Ɵmes
081
01
WIDE PIPE THERMISTOR
(INDOOR NO.4)
4 Ɵmes 12 Ɵmes
082
01
NARROW PIPE THERMISTOR
(INDOOR NO.5)
4 Ɵmes 13 Ɵmes
083
01
WIDE PIPE THERMISTOR
(INDOOR NO.5)
If LD304 blinks, the number of blinks indicates a communicaƟon error with the corresponding indoor unit connecƟon.
Detail as per below table.
TIMER
LAMP
BLINKING
LD304
BLINKING
WIRELESS
REMOCON
CODE
WIRED
REMOCON
CODE
MEANING DETAILS MAIN CHECK POINT
-1 Ɵme
COMMUNICATION ERROR BETWEEN OUTDOOR AND
INDOOR UNIT NO.1
-2 Ɵmes
COMMUNICATION ERROR BETWEEN OUTDOOR AND
INDOOR UNIT NO.2
-3 Ɵmes
COMMUNICATION ERROR BETWEEN OUTDOOR AND
INDOOR UNIT NO.3
-4 Ɵmes
COMMUNICATION ERROR BETWEEN OUTDOOR AND
INDOOR UNIT NO.4
Note : This communicaƟon error diagnosis table only applicable for 2 rooms unƟl 4 rooms mulƟ system model.
Other shall refer to diagnosis table on
the electrical cover or inside outdoor service manual.
THERMISTOR IS OPENED OR SHORTED
1. THERMISTOR
2. CONNECTION OF THERMISTOR IS FAULTY
3. THERMISTOR CIRCUIT
OUTDOOR
OUTDOOR
009
01
EVEN WHEN INDOOR UNIT IS NOT
CONNECTED, IT BLINKS SIMILARLY.
(NOT MALFUNCTION)
1. INDOOR TO OUTDOOR C-D LINE CABLE
NOT CONNECTED PROPERLY.
2. COMMUNICATION CIRCUIT DAMAGED.
3. DC35V POWER SUPPLY DAMAGED.
4. EFFECT OF EXTERNAL NOISE TO C-D LINE
CABLE.
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