Last Tower light on the Zimmatic AIMS Basic

An independent guide from FixMyPivot, not from the manufacturer. Brand and panel names are here only so you can find your own equipment.

What it means

Cycling on and off while running is normal because it follows the percent timer.

While the machine is running, this light should cycle on and off, because it follows the timer that drives the last tower, and every other tower keeps up with it. At 50 percent the cycling is easiest to see. At 100 percent the last tower runs all the time, so the light stays on, and that is normal. If it does not cycle while running at a setting below 100 percent, that points to a failed percentage timer.

This is what it means on the Zimmatic AIMS Basic. On a different panel the same light or message can mean something else. Wrong panel? Pick another Zimmatic panel.

Safety

Center pivots run on high voltage and heavy moving machinery. Shut off and lock out power at the main disconnect before you open a panel or touch anything electrical. If you are not sure, stop and call your local pivot dealer or a licensed electrician. These pages tell you what a code means. They do not replace a qualified technician, and the safety instructions that came with your equipment come first.

FixMyPivot is an independent troubleshooting service. It is not affiliated with, authorized by, or sponsored by any equipment manufacturer. All brand, panel and product names are trademarks of their owners and are used here only to identify the equipment a code appears on. This information is general, is provided as is without warranty, and may not match the software version on your panel. Use of these pages is subject to our Terms of Service.