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Why is one of the green lights on the head driver card not turned on?

April 26, 2017card driver Head lights turned

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Why is one of the green lights on the head driver card not turned on?

1 Answer

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Since the green light is an indication of a complete circuit, if one or more is not turned on then a break in the circuit exists between the head and the driver card. This may be due to one or more of the following. The power may be turned off. The head cable may be disconnected or have a broken wire. One or more fuses on the head driver card may also be open. You can check the fuses with an ohm meter and replace them as needed.