SOLAR RADIATION SENSOR INSPECTION

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1.  Using a tester, connect the positive (+) lead to solar radiation sensor terminal A, the negative (-) lead to terminal B or C, then measure the resistance.

•  If the resistance is not normal, replace the solar radiation sensor.

2.  Block the light to the solar radiation sensor, connect the positive (+) lead of a tester to solar radiation sensor terminal B or C and negative (-) lead to terminal A, then measure the resistance.

•  If the resistance is not normal, replace the solar radiation sensor.

3.  Expose the solar radiation sensor to natural sunlight.

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4.  Using a tester, connect the positive (+) lead to solar radiation sensor terminal B or C, the negative (-) lead to terminal A, then measure the resistance.

•  If the resistance is not normal, replace the solar radiation sensor.