Code 5551: “tec - voltage high” (Warning)

Situation	Solution
Malfunction Fan Control board or SMPS board.	Measure on the Signal Backplane the +VTEC voltage on pin 4, 5, 6, 7 or 8 of the connector of the black wire unit which comes from the SMPS board. See image. If the measured voltage is about 16V then replace the Fan Control board. See "Removing a board in the card cage". Otherwise replace the SMPS board. See"Replacement of the Switched Mode Power Supply".

Situation

Solution

Malfunction Fan Control board or SMPS board.

Measure on the Signal Backplane the +VTEC voltage on pin 4, 5, 6, 7 or 8 of the connector of the black wire unit which comes from the SMPS board. See image.

If the measured voltage is about 16V then replace the Fan Control board. See "Removing a board in the card cage". Otherwise replace the SMPS board. See"Replacement of the Switched Mode Power Supply".