6.Failure phenomenon:The infrared sensor lamp is blinking(on for 4 seconds,off for 1 second)
<Situation> The infrared sensor lamp is blinking(on for 4 seconds,off for 1 second)
The infrared human presence sensing function can not be in operation or the sense is blunt.
「Timer lamp is blinking for 20 times」is kept in self-diagonsis memory function.
<Cautions> After pressing the「Infrared sensor 」、「Auto air deflection」buttons by remote controller,the infrared human
presence sensing mode is set.The infrared sensor self-diagnosis usually works 1 minute at least to 1 hour at
most to diagnose.Please refer to page 7 5 「Infrared sensing failure diagnosis service mode 」.
<Estimated failure locations> ·
The sensor board break.
·
CN20 connector loose,lead wire break.
– 124 –
No
Yes
Yes
No
Correct the connector.
Replace the sensor board.
According to 「Infrared sensing failure diagnosis service
mode」
Refer to the next page 「Infrared sensor checking points」for
rejudgement?
<Diagonsis flow>
Initiating troubleshooting
Is the CN20 connector loose?
Or is there a wire break?
,can the failure phenomenon be judged?
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