Rain Bird Time Clock Won't Start Pump – Needs 24V Relay

Pump runs only with manual on/off switch, not from clock.

Cause

Controller needs a 24VAC relay to start 110V/220V pump. Clock's MV/Pump Start terminal energizes relay coil.

Fix

1. Verify controller has MV or Pump Start terminal.
2. Install 24VAC relay at pump (electrician recommended).
3. Wire: Common from clock to relay coil; Pump Start terminal to other coil side.
4. Relay contacts switch pump power.