Werbung
Verfügbare Sprachen
Verfügbare Sprachen
(MODEL RAS-40QH1}
TROUBLESHOOTING WHEN THE TIMER and DEHUMIDIFYING LAMP BLINKS
Perform troubleshooting according to the number of times the timer lamp on the display of the indoor unit
blinks.
Blinking mode of Timer lamp
_
Reason of indication
Possible caues
Reversing valve defective
_ _ | (1) Reversing valve defective
When the indoor heat exchanger
(2) Heat exchanger thermistor
temperature is too low in the heating
disconnected
mode or it is too high in the cooling
(only in the heating mode).
mode.
(Note)
The malfunction mode is entered the 3rd
time this abnormal indication
appears(read every 3 minutes).
Qutdoor unit forced operation
Electrical parts in the outdoor unit
When the outdoor unit is in forced
operation or balancing
operation after forced operation.
Indoor unit/outdoor unit interface
(1) Indoor unit interface circuit
defective
(2) Outdoor unit interface circuit
When the interface signal from the
outdoor unit is interruppted.
Over-current detection at the DC fan
(1) Indoor unit fan lock
fan motor of the indoor unit.
1C401 data reading error
1C401 abnormal
5 seq
When data read from IC401 is incorrect.
iil
a
i ---
13 times
( L- - lights for 0.5 sec. at intervals of 0.5 sec.)
A CAUTION
(1)
If the interface circuit is defective when the power is turned ON, the self-diagnosis indication is not
displayed.
(2)
If the indoor unit cannot be operated at all, check the connection of the F cable (reverse connection
or disconnection).
(3)
When the timer lamp or the dehumidifying lamp blinks, remote control cannot be done. To check the
operation, turn the power switch OFF once, then turn it ON again.
- 220 -
Werbung
