Panasonic CS-E7PKR Service Manual page 96

13.13.3.2 Infrared Sensor Abnormality

Abnormality detection:
Connector disconnection / Wire cut abnormality
o
 Sensor judge Hi level continuously for 25 seconds
Circuit abnormality
o
 70 seconds after power ON, if infrared sensor judge Lo level continuously for 25 seconds

Error Code judgment
When abnormality happened, internal counter increase by 1 time.
o
Infrared sensor power OFF, retry after 5 seconds.
o
When the infrared sensor maintains normal condition for 120 seconds, the counter reset or AC reset.
o
When abnormality counter reached 4 times, H59 occurred – No TIMER indicator blinking.
o

When error code happened, the unit is able to operate without AUTO COMF / ECO NAVI.
13.13.3.3 Infrared Sensor Check Mode

To enable Infrared sensor abnormality check mode:

During ECO NAVI is ON, when CHECK signal received, if either sensors has abnormality, the 4 times
abnormality counter is ignored, ECO NAVI Indicator will blink immediately and error code is memorized.

The unit could operate without ECO NAVI or AUTO COMF.

The ECO NAVI indicator blinking could be cancelled by pressing ECO NAVI button again.

If the Infrared sensor has no abnormality, the CHECK process will end and continue with normal operation.
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