Diamond DA 40 Flight Manual page 282

Airplane
Description
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7.15.3 UNIT FAILURE INDICATION
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A failure of the CO sensor, temperature sensor, or the micro-controller will result in the
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following failure indications:
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The remote light will flash at an approximately rate of one flash each four seconds until
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the failure is cleared or power is removed from the unit.
Page 7 - 56 Rev. 8 01-Dec-2010
DA 40 AFM
Doc. # 6.01.01-E