Panasonic CS-E24MKES Service Manual page 48

12.11.10.Infrared Sensor Abnormality
• Abnormality detection:
- Connector disconnection / Wire cut abnormality
- Sensor judge Hi level continuously for 25 seconds
- Circuit abnormality
- 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.
- Infrared sensor power OFF, retry after 5 seconds.
- When the infrared sensor maintains normal condition for 120 seconds, the counter reset or AC reset.
- When abnormality counter reached 4 times, H59 occurred – No TIMER indicator blinking.
• When error code happened, the unit is able to operate without AUTO COMF / ECO NAVI.
12.11.11.Infrared Sensor Check Mode
• To enable Infrared sensor abnormality check mode:
• During ECO NAVI / AUTO COMF 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/AUTO COMF button again.
• If the Infrared sensor has no abnormality, the CHECK process will end and continue with normal operation.
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