Rain Bird ESP-6TM Dead After Wrong Fuse Installation: Controller or Transformer?

ESP‑6TM No Power After Installing Incorrect Fuse

The manual states:

• Display shows "PR OFF" – Fuse blown; replace with same amperage. If it blows again on a specific station, that station’s solenoid/wiring has a short.
• Display blank – Power surge may have damaged the microprocessor. Power down, disconnect battery, wait 5 minutes, reconnect battery and power. If display stays blank, the ESP is permanently damaged—contact Rain Bird (1‑800‑RAIN‑BIRD) for service referral.

Using a wrong‑size fuse likely caused permanent controller damage.