Daikin SUPER MULTI NX CDXS18LVJU, Руководство по обслуживанию

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Troubleshooting with LED SiUS12-928_B
135 Service Diagnosis
1. Troubleshooting with LED
1.1 Indoor Unit
Operation Lamp
The operation lamp blinks when any of the following errors is detected.
1. When a protection device of the indoor or outdoor unit is activated, or when the thermistor
malfunctions.
2. When a signal transmission error occurs between the indoor and outdoor units.
In either case, conduct the diagnostic procedure described in the following pages.
Caution: When operation stops suddenly and the operation lamp blinks, it could be "operation mode
conflict".
Check followings;
Are the operation modes all the same for the indoor units connected to multi system outdoor unit?
If not, set all the indoor units to the same operation mode and confirm that the operation lamp is not
blinking.
Moreover, when the operation mode is automatic, set all the indoor unit operation mode as
"cooling" or "heating" and check again if the operation lamp is normal.
If the lamp stops blinking after the above steps, there is no malfunction.

Operation stops and operation lamp blinks only for indoor unit which different operation mode is
set later. (The first set operation mode has priority.)
Service Monitor The indoor unit has one green LED (LED A) on the control PCB. When the microcomputer works in
order, the LED A blinks.
CTXS/FTXS series
(Ex: CTXS07LVJU, FTXS09/12LVJU) CDXS/FDXS series
(Ex: FDXS09/12LVJU, CDXS15/18LVJU)
(R13534)
Operation lamp
(green)
(R16589)
Operation lamp
(green)