305 on the Zimmatic 700C
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
ROTO-PHASE DELAY.
A 300-series status is a delay. The machine is waiting, not faulted, and it can start on its own when the wait ends, so treat it as live. It is giving the phase converter time to bring all three phases up before the motors start.
305 on other panels
This page is for the Zimmatic 700C. The same code on another panel can mean something else:
- Zimmatic 712C · different meaningRoto-phase Delay: giving a roto-phase converter time to bring all three phases up before engaging motors
- Zimmatic FieldNET Pivot Control · different meaningPressure Post-delay: pressure is at operating level and the system delays momentarily before irrigating
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.