( Lights for 0.35 sec. at interval of 0.35 sec.)
No.
Blinking of Timer lamp
Reason for indication
Possible cause
Reversing valve defective
When the indoor heat exchanger
temperature is too low in the
heating mode or it is too high in the
cooling mode.
Outdoor unit is under forced
operation
When the outdoor unit is in forced
operation or balancing operation
after forced operation
Indoor/outdoor interface defective
When the interface signal from the
outdoor unit is interrupted.
Room thermistor or heat exchanger
thermistor is faulty
When room thermistor or heat
exchanger thermistor is opened
circuit or short circuit.
Over-current detection at the DC fan
motor
when over-current is detected at the
DC fan motor of the indoor unit.
When data read from IC401 is
incorrect.
(1) Reversing valve defective
(2) Heat exchanger thermistor
disconnected
(only in the heating mode)
(Note)
The malfunction mode is entered the
3rd time this abnormal indication
appears (read every 3 minutes).
Electrical parts in the outdoor unit
IC401 abnormal
1
2
3
4
5
6
10 times
3 times
1 time
2 times
13 times
2 sec.
2 sec.
2 sec.
2 sec.
2 sec.
1
9 times
2 sec.
TROUBLESHOOTING WHEN TIMER LAMP BLINKS.
MODEL RAS-10JH1, RAS-14JH1
MODEL RAS-10JH1, RAS-14JH1
Perform troubleshooting according to the number of times the indoor timer lamp.
SELF-DIAGNOSIS LIGHTING MODE
7
16 times
2 sec.
2
8
17 times
2 sec.
2
IC401 data reading error
Ventilation fan motor does not rotate
Ventilation fan abnormal
Dirt sensor disconnection or short
ckt.
Dirt sensor(Gas sensor) abnormal
(1) Ventilation fan locked
(2) Ventilation fan motor
(3) Indoor control P.W.B.
(1) Dirt sensor circuit
(2) Disconnection of dirt sensor
connector or lead wire
(1) Indoor fan locked
(2) Indoor fan motor
(3) Indoor control P.W.B.
(1) Room thermistor
(2) Heat exchanger thermistor
(1) Indoor interface circuit
(2) Outdoor interface circuit
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