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 +VTEC voltage is about 16V then replace the Fan Control board. See "Replacement of a Card Cage board". Otherwise replace the SMPS board. See "Replacement of the SMPS board".

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 +VTEC voltage is about 16V then replace the Fan Control board. See "Replacement of a Card Cage board". Otherwise replace the SMPS board. See "Replacement of the SMPS board".