Power indicator on the gauge controller does not light

If the power indicator (LED) on the gauge controller does not light when the gauge controller power switch is on, check the following:

Unplugged gauge controller power cord

Make sure the power cord is connected to an appropriate electrical outlet.

Incorrect or inadequate line voltage at the electrical outlet

Make sure the line voltage is within the acceptable range for the gauge controller.

WARNING! Only a trained electrician should check the line voltage.

Failed gauge controller fuse

1. Switch off the gauge controller.

2. Disconnect the power cord from the gauge controller.

WARNING! Never remove the fuse without first disconnecting the power cord. Hazardous voltages will be present if the power cord is not disconnected.

3. Remove and inspect the gauge controller fuse. If the fuse has failed, replace it with one of the same rating.

Repeated fuse failures indicate a more serious underlying problem. Contact your Agilent Technologies service representative.