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Damaged wire insulation of the temperature sensor which measures
the temperature at the Light Pipe entrance. When disconnecting the
wire of the temperature sensor from its socket (reference 1 image) or from the Signal Backplane (reference 2 image) the error code is changed to “light pipe
- temperature sensor open”.
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Repair the insulation of the of the temperature sensor which
measures the temperature of Light Pipe entrance (reference 3 image.
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If not repairable, replace the temperature sensor and wiring.
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Defect temperature sensor (reference 18 image) which measures the heat sink temperature
of the red channel. When disconnecting the wire unit of the temperature
sensor from the Signal Backplane (reference 8 image the error code is changed to “light
pipe - temperature sensor open”.
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Replace the temperature sensor which measures the temperature
of Light Pipe entrance (reference 3 image.
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