Hitachi RAF-35RPA RAF35RPA Manuel D’Utilisation
Codes de produits
RAF35RPA
14-30
14.7.6 MONO SPLIT INDOOR (RAD-50/60/70PPA)
No
Blinking of TIMER lamp
Reason for indication
Possible causes
1
When the indoor heat exchanger
temperature is too low in the heating mode
or it is too high in the cooling mode.
temperature is too low in the heating mode
or it is too high in the cooling mode.
Refrigerant cycle abnormal
1) Reversing valve defective
2) Heat exchanger thermistor
2) Heat exchanger thermistor
disconnected (only in heating mode)
The malfunction mode is displayed only
after the abnormal condition occurs 3
after the abnormal condition occurs 3
rd
time
(read every 3 minutes
• Four-way valve faulty.
*Note (for RAI & RAD)
• Disconnection in heat exchange
thermistor (only during heating)
2
When the outdoor unit is in forced
operation or balancing operation after
forced operation
operation or balancing operation after
forced operation
Outdoor unit forced operation.
Electrical parts in the outdoor unit.
3
When the interface signal from the outdoor
unit is interrupted.
unit is interrupted.
Indoor/outdoor interface defective
1) Indoor interface circuit.
2) Outdoor interface circuit
2) Outdoor interface circuit
4
When the error mode is detected times
within 30 minutes from outdoor unit
electrical components. (However, when
error is detected 8 times within two hours
only for outdoor thermistor
within 30 minutes from outdoor unit
electrical components. (However, when
error is detected 8 times within two hours
only for outdoor thermistor
Outdoor electrical assembly defective
Outdoor unit electrical components. (For
details, operate again using remote
controller and check from self-diagnosis
display of outdoor unit)
details, operate again using remote
controller and check from self-diagnosis
display of outdoor unit)
6
All stop when the float switch has been
activated
activated
Abnormal water level detection
1) Drain stopped up
2) Drain pump
3) Float switch
2) Drain pump
3) Float switch
7
When the knob of drain pump test switch
at indoor P.W.B main slide to “test”
position.
at indoor P.W.B main slide to “test”
position.
Drain pump forced operation
Indoor PWB (Main)
9
When room thermistor or heat exchanger
thermistor is opened circuit or short circuit.
thermistor is opened circuit or short circuit.
Room thermistor or heat exchanger
thermistor is faulty
thermistor is faulty
1) Room thermistor
2) Heat exhanger thermistor
2) Heat exhanger thermistor
10
Overcurrent in indoor DC fan motor has
been detected.
been detected.
Over-current detection at the DC fan motor 1) Indoor fan locked
2) Indoor fan motor
3) Indoor control P.W.B.
3) Indoor control P.W.B.
11
When data read from IC401 or IC402 is
incorrect.
incorrect.
IC401 or IC402 data reading error
IC401 or IC402 abnormal
*Note: Refer to Chapter 9 for error codes displayed on remote controllers.
(
Lights for 0.35 sec. at interval of 0.35 sec.)
<Cautions>
1) If the interface circuit is faulty when power is supplied, the self diagnosis display will not be displayed
2) If the indoor unit does not operate at all, check if the connecting cable is connected to the outdoor unit.
3) To check operation again when the timer lamp is blinking, you can use the remote control for eoperation (except for mode
1) If the interface circuit is faulty when power is supplied, the self diagnosis display will not be displayed
2) If the indoor unit does not operate at all, check if the connecting cable is connected to the outdoor unit.
3) To check operation again when the timer lamp is blinking, you can use the remote control for eoperation (except for mode
mark ※1)
1 time
2sec
2sec
2 times
2sec
3 times
2sec
4 times
2sec
6 times
2sec
7 times
2sec
9 times
2sec 10 times
2sec 13 times
※1