Originally Posted by fred98050

So I removed the unit once again. All contacts are clean at the bottom and the metal disk under the float is clean as well. I then connected the unit (without putting it in the tank) and the gauge is working fine, however even when the float is at the bottom making contact with the 2 lower contact points the light does not come on.....

Also, when you turn the ignition on, I understand the light should come regarless of float position. I am trying to find out if it comes on as a test of the sending unit or as a test for the light????

I wonder if anyone would know how to test the gauge for proper operation using a voltmeter.

Thanks