Allied Telesis AT-MCF2300 - Manual (Page 150)

Chapter 23: Troubleshooting the Modules
150 Section II: Installation
AT-MCF2000AC and AT-MCF2300AC Power Supply Modules
Problem 1: The PSU LED is off.
Solution: The power supply module is not receiving power or has failed.
Try the following:
❒
Verify that the module is fully seated in the power supply slot in the
chassis.
❒
Verify that the power cord is firmly connected to the power supply
module and the power source.
❒
Try connecting the power module to another power source, preferably
located on a different circuit.
❒
Verify that the power source is operating properly by plugging a
different device into it.
❒
Verify that the power from the power source meets the operating
specifications of the power supply module, listed in “AT-MCF2000AC
Power Supply Module” on page 173 and “AT-MCF2300AC Power
Supply Module” on page 173.
❒
Replace the power supply module.
Problem 2: The PSU LED is amber.
Solution: The power supply module is failing or the power from the power
source is not in the range of the operating specifications of the module.
Try the following:
❒
Try connecting the power module to another power source, preferably
located on a different circuit.
❒
Verify that the power from the power source is within the operating
specifications of the power supply module, listed in “AT-MCF2000AC
Power Supply Module” on page 173 and “AT-MCF2300AC Power
Supply Module” on page 173.
❒
Replace the power supply module.
Problem 3: The FAN LED is amber.
Solution: A fan in the power supply module has failed. Replace the
module.