A successful manual run proves the controller can activate the station circuit. The fault is usually schedule logic: the dial is not in AUTO RUN, no valid start time or watering day exists, a rain sensor is active, or seasonal adjustment has effectively reduced watering.
Match the pattern before opening anything
| Possible cause | Best clue | First check |
|---|---|---|
| Dial not in AUTO RUN | Manual operation works from the faceplate | Return the dial to AUTO RUN |
| No valid program start | Run times exist but no cycle begins | Check start time and watering days |
| Active or open sensor circuit | Sensor indication blocks automatic watering | Use the documented bypass test |
| Seasonal adjustment | Runs are missing or much shorter than expected | Compare adjustment with 100% |
What this guide adds beyond the standard checklist
- First dividing test
- Prove the hardware with one manual station: Run one zone for two minutes. If it waters normally, do not start by replacing the valve or solenoid. The controller-to-valve path has just passed a useful test.
- If the clue matches
- If you observe “Manual operation works from the faceplate,” move dial not in auto run higher on the list and start with: Return the dial to AUTO RUN.
- If it does not
- If that clue is absent, do not force the first diagnosis. Compare the system against “Run times exist but no cycle begins” and check: Check start time and watering days.
Worked exampleYou replaced the station run times, but tomorrow's schedule still did not start. The result changes the next move: Create one simple test program starting a few minutes ahead and observe which status indicator prevents it.
Original conclusionRun times are only one part of a valid program. Manual success means the missing condition is more likely the start time, day, Auto mode, sensor, or delay. Create one simple test program starting a few minutes ahead and observe which status indicator prevents it.
Recognize the controller state
Original diagnostic reconstruction. Not a photograph of the product and not copied from a competitor.
Check these in order
- 01
Prove the hardware with one manual station
Run one zone for two minutes. If it waters normally, do not start by replacing the valve or solenoid. The controller-to-valve path has just passed a useful test.
- 02
Return the dial to AUTO RUN
The ESP-TM2 must be left in its automatic operating position. A correct schedule cannot launch while the controller is intentionally off or left in a programming position.
- 03
Audit one program from beginning to end
Confirm current date and time, at least one watering day, one intended program start time, and a non-zero run time for each included station. Start times belong to the program, not individual stations.
- 04
Test the rain-sensor explanation
If a sensor is installed, allow it to dry or use the controller's documented sensor bypass for a short diagnostic test. If no sensor is installed, verify the required jumper is present as shown in the manual.
- 05
Check seasonal adjustment and delays
Return seasonal adjustment to its normal baseline for testing and clear any temporary delay. Then set a start several minutes ahead and watch the display through the expected start.
- Manual watering becomes intermittent as well.
- The sensor wiring or jumper arrangement does not match the manual.
- Programs disappear or the clock repeatedly resets after power loss.
What homeowners ask about this symptom
Can the rain sensor block automatic but not manual watering?
Yes, depending on the manual mode used and controller configuration. That makes sensor status a strong suspect when scheduled watering fails but a manual test succeeds.
What should seasonal adjust be for testing?
Rain Bird identifies 100% as the nominal ESP-TM2 setting. Use that baseline temporarily while isolating a schedule problem.
Sources and review notes
General maintenance logic is checked against EPA WaterSense outdoor irrigation guidance. Product controls and disassembly steps vary by model; use the current manufacturer manual for your exact valve, controller, or sprinkler head.
Published and last reviewed: August 29, 2026