CHAPTER 4: Troubleshooting

Thermal alarm

Symptom

Cause

Action

 

 

 

 

 

 

■

Ops panel SYSTEM FAULT LED

■

If the internal temperature

■

Make sure that the local ambient environment

 

is orange.

 

measured in the airflow

 

temperature is below the upper 104°F (40°C)

■

An orange LED on one or

 

through the enclosure

 

specification.

 

more power supply module.

 

exceeds a pre-set threshold, a

■

Check the installation for any airflow restrictions at

■

An audible alarm is sounding.

 

thermal alarm sounds.

 

either the front or rear of the enclosure. A minimum gap

■

Air temperature in the exiting

■

Cooling module failure.

 

of .98 inch (25 mm) at the front and 1.97 inches (50 mm)

 

power supply module is

 

 

 

at the rear is recommended.

 

above 131°F (55°C).

 

 

■

Check for restrictions caused by dust build-up and clean

 

 

 

 

 

as appropriate.

 

 

 

 

■

Check for excessive re-circulation of heated air from the

 

 

 

 

 

rear to the front. Installing in a fully enclosed rack

 

 

 

 

 

installation is not recommended.

 

 

 

 

■

If possible, shutdown the enclosure and investigate the

 

 

 

 

 

problem before continuing.

 

 

 

 

■

Replace the cooling module.

 

 

 

 

 

 

Thermal warnings

Symptom

Cause

Action

 

 

 

 

 

■

All orange LEDs on the Ops

The temperature is higher than the

■

Power off immediately.

 

panel and on all drive bays are

thermal alarm threshold (this should

■

Check for airflow restrictions.

 

flashing.

already have been activated).

■

Check for power supply module faults.

■

The audible alarm sounds

OR - All fans have failed.

■

Check for excessive local temperatures.

 

almost continuously and

OR - Only 1 fan is operating and the

 

 

 

cannot be muted.

internal temperature is 104°F (40°C) or

 

 

 

 

above.

 

 

 

 

 

 

 

Hardware faults

Make sure that you have obtained a replacement module of the same type before removing any faulty module.

Caution

If your Gateway E-842R enclosure is turned on and you remove any module, replace it immediately. If the enclosure is used with plug-in modules, dummy carriers, or blank modules missing for more than a few minutes, the enclosure can overheat, causing power failure and data loss. Such use invalidates the warranty.

•Replace a faulty drive with a drive of the same type and equal or greater capacity.

•All drive bays must have a drive carrier or dummy carrier module installed in order to maintain a balanced airflow.

•All of the supplied plug-in power supply units, electronics modules, dummy carriers, and blank modules must be installed for the air to flow correctly around the cabinet.

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