ASA 5510 with weird light

putty cannot see Rmon, on hardware it has amber on status, yellow on active, green on VPN but the power light didn't shown. how can I fix this?
Steve Wongsystem analystAsked:
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Since Power didn't show and Status is amber - which means
The power-up diagnostics have failed.
Most likely ASA have problems with power supply.
ASA  -  Front panel LED.

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Steve Wongsystem analystAuthor Commented:
Will that be good to change the power supply myself?

I am not sure what to suggest since it is risky, replacing PSU itself is easy. Most likely (but just most likely) that replacing power supply should solve the problem, since motherboard detects that power-up diagnostics failed, so implicit premise here is that motherboard works OK (at least partially) since it can perform detection (but that premise may be wrong) and power led is turned off, however risk is that if something else than power supply is also a problem and you could end up with buying power supply and still not solve your problem.
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