We repair more Rain Bird ESP and Hunter X-Core / Hydrawise panels than everything else combined. In Houston heat the failure mode is the same: the box is in an attic or on a west-facing garage wall, a storm hits, and the display dies.
We do not start with a brand argument. We check the transformer, rain-sensor loop, and surge path. If the board is gone, we replace it with the same family when the valves match, or we move you to Hydrawise / ESP-ME3 when the old timer is obsolete. See our Hunter and Rain Bird pages for parts we stock, then book repair if the panel is blank today.