A blank irrigation clock is not automatically a $250 Wi-Fi panel. In Texas garages the outlet is on a GFCI that tripped when someone ran a shop-vac. Lightning and compressor surges do kill boards. Distinguishing those saves you a controller and a week of brown turf.
This guide is written for Texas systems — urban clay on small lots in Bellaire, freeze risk in Irving, watering rules from City of Bellaire. It is not a national blog with the city name swapped in. If the hardware is already failing, skip to timer & controller repairs or call 888-427-5022.
What a sprinkler controller with a blank screen actually looks like on a Texas lawn
No display, no buttons, no station lights. Or a display that died after a storm while the transformer still hums. Or a unit that reboots whenever the AC kicks on.
In Bellaire the same symptom often traces to sidewalk-undermining leaks. In Irving we see more freeze and heave. In Bee Cave (City of Bee Cave / WCID) the program may be legal but the heads are wrong. Do not assume the YouTube fix matches City of Bellaire pressure.
Diagnose before you buy parts
Order of operations matters. Controller and rain sensor first, then the valve box, then heads with water on, then a shovel. Skipping steps is how people replace nozzles when the solenoid is open, or trench for a “root problem” when station 4 is dead at the clock.
- Check the outlet with something else. Reset GFCI. Check the breaker.
- Feel the transformer. Dead-cold with a live outlet means the plug pack failed.
- If the transformer is warm and the panel is dark, the board likely took a surge.
- Photograph the station wires and labels before you pull anything. Texas boxes are not documented.
- Only then size a replacement. Keep the same station count plus a spare. Move to Wi-Fi if the owner will actually use it.
Keep a notepad of zone numbers. The FAQ covers the phone questions we ask so the truck shows up with the right fittings.
Parts that actually last in this climate
A quality plug pack is cheaper than a panel. Whole-house surge is not an irrigation accessory but it would have helped. We still see plenty of Hunter Pro-C and Rain Bird ESP modules that outlast the cheap big-box timers from the builder.
We use matched-precipitation nozzles when we change a head, and we flush grit after a pipe cut so the next screen does not pack. Brand-specific notes live in the blog as well — start with Sprinkler Rain Sensor Stuck On or Off, Sprinkler Wire Troubleshooting, Dry Spots in the Lawn.
What it costs in Texas (ranges, not bait)
A transformer is small. A panel swap is a mid visit plus the unit. Retracing unlabeled wires is the labor that surprises people. We label as we go.
A written quote before work is the rule. See Timer & Controller Repairs for what a typical visit includes, and the full service list if more than one system is involved.
DIY vs calling a licensed irrigator
Reset the GFCI. Check the outlet. Photograph wires. If you are not sure which common is which, stop. A miswired replacement waters the wrong bed for a year.
Texas licenses landscape irrigators for a reason: backflow, buried electric, and municipal rules. If you are in Bellaire, Irving, or Bee Cave, start on the city page — Bellaire, Irving, Bee Cave — then book.
Mistakes that turn a one-hour job into a weekend
- Tossing the old panel before the wires are labeled.
- Buying an 8-station clock for a 11-zone yard and jumpering two valves onto one station.
- Mounting a Wi-Fi clock where the garage has no signal and blaming the brand.
How this ties to other repairs
A blank screen after a freeze can be a power issue or a dead board. A blank screen with one zone still running is a stuck valve, not a clock — shut water off. See zone-won’t-shut-off.
Coverage problems after a “fix” usually mean the program was never updated. Pair mechanical work with controller programming and, on clay, cycle-and-soak — not a longer single runtime.
What a good visit looks like on our trucks
We do not start with a parts cannon. Controller and sensor, then the box, then water-on, then dirt if the lateral is the problem. That order is how you avoid replacing a clock for a cut wire, or trenching a puddle that is eight feet from the break. If you want the short phone version, the FAQ is enough. If you want the long version, you are already in it.
Texas jobs change by metro even when the part number does not. Bellaire clay hides water. Irving actually freezes brass. Bee Cave bills you through a different utility window. A national blog that only swaps the city name is how Google ends up indexing one page. We write the local constraint in the article because it changes the repair.
Bring zone numbers, whether the problem is new or slow, whether anyone dug recently, and whether the meter moves when everything should be off. Those four answers route the call — leak truck vs simple head work vs controller power path. Book on contact or call 888-427-5022.
Frequently asked
Do I need Wi-Fi?
Only if you will change programs from a phone. A dumb clock that keeps time is better than a smart clock on bad Wi-Fi.
Can you save my old programs?
If the board is dead, no. We rebuild a legal starting schedule for your utility.
Need it fixed, not diagnosed over email? Call 888-427-5022 or use the contact page. Same-day windows are for active leaks and stuck-on valves. Everything else we schedule on emergency vs standard priority.
Texas context we will not skip
Gulf clay, Blackland prairie, and Edwards rock do not share a repair script. A wet spot in Houston is not a freeze crack in Dallas, and a SAWS stage day is not a MUD watering window in Katy. We write those constraints because they change the parts on the truck and the program we leave on the clock.
If this article is about a part, still run isolation before you buy a case of that part. If it is about a city, still open the valve box before you trench the first damp patch. If it is about a clock, still measure the solenoid. That order is the whole business.
Call 888-427-5022. Use the contact page if you need a gate code on the ticket. Hub pages: services, service areas, blog.