Troubleshooting; Indoor Units - Daikin FTK25JV1NB Manual

Si-86.book Page 57 Friday, June 23, 2000 10:26 AM
SIE-86

5. Troubleshooting

5.1

Indoor Units

- : Not used for troubleshooting
∗ : Varies depending on the cases.
Indication on the
remote controller
0 0 0 0 0 0 0 0 OR ∗
A A A A 1 1 1 1
A A A A 5 5 5 5
A A A A 6 6 6 6
C C C C 4 4 4 4
C C C C 9 9 9 9
C C C C A A A A
∗
∗ OR U U U U 4 4 4 4
U U U U 4 4 4 4
Service Diagnosis
Description of The Fault
Indoor unit in normal condition (Conduct a diagnosis of the outdoor unit.)
Inverter unit - Faulty indoor unit PCB
Operation halt due to the freeze protection function or high pressure
control (heat pump model only)
Faulty fan motor (AC motor stop)
Heat exchanger temperature thermistor or related abnormality
Suction thermistor or related abnormality
Discharge thermistor or related abnormality
Faulty indoor unit PCB
Faulty power supply or indoor unit PCB
Signal transmission error (between indoor and outdoor units)

Troubleshooting

Details of fault
(Refer to the
indicated
page.)
—
60
AC motor 61
62
62
62
63
64
65
66
57