Rain Bird RC-1260Bi: Timer Motor Failure

Symptom: Zones Run Manually but Timer Won't Advance

The Rain Bird RC-1260Bi uses two motors: one for timekeeping/zone duration, one for advancing the station wheel. If zones run when you turn the dial manually but the timer doesn't advance automatically, the advance motor or its trigger switch has failed.

Repair vs. Replace

Motor parts for this vintage mechanical controller are scarce. Rain Bird no longer produces mechanical controllers.

Best Path: Upgrade to Digital

• Digital controllers (Rain Bird ESP series, Hunter Pro-C, Irritrol Rain-Dial) are more reliable, programmable, and water-efficient.
• Wiring is nearly identical: common wire to C, each zone wire to its station terminal.
• Cost: $100–$180.

If You Must Repair

Check basicirrigation.com or eBay for NOS motors. Also try Rain Bird customer service (800-724-6247).