FILE NO. SVM-10020

11-2. Primary Judgment

To diagnose the troubles, use the following methods.

1)Judgment by flashing LED of indoor unit

2)Self-diagnosis by service check remote controller

3)Judgment of trouble by every symptom

Firstly use the method 1) for diagnosis. Then, use the method 2) or 3) to diagnose the details of troubles.

11-3. Judgment by Flashing LED of Indoor Unit

While the indoor unit monitors the operation status of the air conditioner, if the protective circuit operates, the contents of self-diagnosis are displayed with block on the indoor unit indication section.

Table 11-3-1

Indoor indication lamp flashes.

Which lamp does flash?

Item

Check

Block display

 

Description for self-diagnosis

code

 

 

 

 

 

A

 

OPERATION (Green)

∙

When turn ON power supply.

 

∙ Power supply ON after failure or OFF.

 

Flashing display (1 Hz)

 

 

∙ This flashing display is not air conditioner failure.

 

 

 

B

 

OPERATION (Green)

Protective circuit operation for indoor P.C. board

 

Flashing display (5 Hz)

 

 

 

 

C

 

OPERATION (Green)

Protective circuit operation for connecting cable

 

TIMER (Yellow)

 

and serial signal system

 

 

Flashing display (5 Hz)

 

 

 

 

OPERATION (Green)

DFILTER (Orange) Protective circuit operation for outdoor P.C. board Flashing display (5 Hz)

 

OPERATION (Green)

Protective circuit operation for others

E

TIMER (Yellow)

FILTER (Orange)

(including compressor)

 

 

Flashing display (5 Hz)

 

NOTES :

1.Some check code will flash display of the indoor unit, when the air conditioner operates with some limitation.

2.Some check code will flash display of the indoor unit and stop operation of the air conditioner.

3.When item B and C or item B and apart of item E occur concurrently, priority is given to the block of item B.

4.The check codes can be confirmed on the remote controller for servicing.

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