Could you please post your comment about this output from show env.
Please focus on Power Supply 2 is that something wrong with that ?
power-supply 1 fan-fail: OK
power-supply 1 power-input: AC high
power-supply 1 power-output-fail: OK
power-supply 2 fan-fail: OK
power-supply 2 power-input: AC low
power-supply 2 power-output-fail: failed
By the way is there any documents which explains what is what in output of show env ?
power-supply 2 fan-fail: OK < --- Means that the extraction fan is functioning properly.
power-supply 2 power-input: AC low < --- Means that instead of receiving full power, it's only getting half power.
power-supply 2 power-output-fail: failed < --- Means that 1 of the 2 power cables are either connected or powered.