Rain Bird ESP‑6: No 110 V Power at Controller – Transformer or Wiring Issue?

The two red hot wires and white common from the 110 V supply show no power at the controller terminals.

Troubleshooting

1. Verify 110 VAC at the controller’s line‑voltage input (before the transformer).
2. If line voltage is present, measure the transformer’s low‑voltage output (should be 22‑26 VAC).
3. If transformer output is low, replace the transformer.
4. To test solenoids, apply 24 VAC directly and watch for plunger movement.