1

2

3

Trouble Diagnosis

2. Outdoor Unit Control PCB LED Display

 

 

(

: ON

: Blinking

: OFF)

 

LED (RED)

Display meaning

 

 

 

1

2

 

 

 

 

 

 

 

 

 

After the power is turned ON (and automatic address setting is not in progress), no

 

 

(Both OFF)

communication with the indoor units in that system is possible.

 

 

 

 

 

 

 

 

 

After power is turned ON (and automatic address setting is not in progress), 1 or more indoor

 

 

units are confirmed in that system; however, the number of indoor units does not match the

(OFF)

(ON)

number that was set.

 

 

 

 

 

Automatic address setting was completed successfully. (After the power is turned ON,

 

 

and automatic address setting is not in progress, the number of detected indoor units

 

(Both OFF)

connected to that system matches the number that was set, and regular communications

 

are occurring.)

 

 

 

 

 

 

 

 

 

 

Automatic address setting is in progress.

 

 

 

(Blinking alternately)

 

 

 

 

 

 

At time of automatic address setting, the number of indoor units did not match the

 

(Both blinking)

number that was set.

 

 

 

 

 

 

 

 

 

Alarm display

 

 

 

(Blinking alternately)

LED 1 blinks M times, then LED 2 blinks N times. The cycle then repeats.

 

M = 2: P alarm 3: H alarm 4: E alarm 5: F alarm

6: L alarm

 

 

 

 

 

 

 

 

N = Alarm No.

 

 

 

 

 

Example: LED 1 blinks 2 times, then LED 2 blinks 17 times. The cycle then repeats.

 

 

Alarm is “P17.”

 

 

 

4

5

6

7

8

3-4

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Image 66
Sanyo UHX2452, UHX0752, UHX1252, UHX3652 Off, Display meaning, Are occurring Automatic address setting is in progress