How to Program Hunter Pro-C: Dial-by-Dial Setup Guide

Last updated: October 2026 · Written by the LawnVibe editorial team.

The Hunter Pro-C is a common modular irrigation controller found in many homes. Its dial makes setup logical once you understand how programs, start times and run times fit together. This guide shows how to program hunter pro-c controllers position by position, with examples and tips to avoid the most common mistakes.

Models and firmware vary, so keep your controller's manual handy or check the Hunter Industries support site for your exact version. If you are replacing the controller, see our guide on how to replace sprinkler controller.

How to program Hunter Pro-C: the basics

The controller uses programs (often A, B and C) to group stations. Each program has its own start times, water days and run times for each station. When a start time arrives, the controller runs every station in that program with a run time, one after another.

Grouping matters because different areas need different watering. Lawn zones usually need more frequent watering than established shrubs, and drip zones need much longer run times than spray heads. Putting them in separate programs lets each group follow its own schedule.

Dial positions

Step 1: Set the date and time

1. Turn the dial to Current Date/Time.
2. Use the arrow buttons to set the year, then month, then day.
3. Set the clock time and AM/PM or 24-hour format.
4. Return the dial to Run.

The date matters for odd/even and interval watering, so set it even if you only use specific weekdays.

Step 2: Set start times

1. Turn the dial to Start Times.
2. Use the program button to select A, B or C.
3. Use the arrows to set the first start time.
4. Advance to add another start time only if you want to repeat the whole sequence.
5. Turn off unused start times.

A common mistake is setting a start time for each station. One start time runs all stations in the program. If you set four start times, every station in the program runs four times that day.

Step 3: Set run times

1. Turn the dial to Run Times.
2. Select the program.
3. Use the arrows to set minutes for station 1, then advance to station 2 and so on.
4. Set stations not used in that program to zero or off.

Spray heads apply water much faster than rotors, so spray zones usually need shorter run times. A simple way to find the right run time is to place a few straight-sided cans in each zone, run it for 15 minutes and measure how much water collects.

Step 4: Set water days

Turn the dial to Water Days, choose the program and select specific days, odd or even days or an interval such as every third day. If your city limits watering to certain days, use those days here. Established lawns usually do better with deep watering two or three times a week than with short daily runs.

Step 5: Use seasonal adjustment

Seasonal adjustment scales every run time by a percentage, so you do not need to reprogram each station when the weather changes. At 100 percent, stations run for exactly the minutes you programmed. Many homeowners program run times for peak summer and use lower percentages in spring and fall.

Adjust based on how the lawn looks and local weather rather than following these figures exactly.

Step 6: Return to Run

Always return the dial to Run, or the controller will not water automatically. It is the single most common reason a Pro-C seems to stop working after programming.

Manual runs and testing

To run a single station, turn the dial to Manual – One Station, select the station, set the run time and return the dial to Run to start it. Many Pro-C models also allow a one-touch manual start that runs a whole program; check your manual for the button sequence. Manual runs are the easiest way to check coverage, find broken heads and confirm that each station waters the area you expect.

Setting a rain delay

When the dial is at System Off, watering stops. On many models, you can then press the arrow buttons to set a rain delay of a number of days; the controller resumes automatically after the delay. If you leave the dial at System Off without a delay, it stays off until you return it to Run. A wired rain sensor connected to the sensor terminals can skip watering automatically during rain.

Example program for a typical yard

Imagine a yard with four lawn spray zones, two lawn rotor zones and two drip bed zones.

• Program A for lawn: water days every other day, start time 5:00 AM, run times about 10 to 15 minutes for spray zones and 25 to 40 minutes for rotor zones, depending on nozzle output and soil.
• Program B for drip: water days twice a week, start time after Program A finishes, run times 30 to 60 minutes.
• Program C unused, or used temporarily for new seed with several short start times a day.

These are only starting points. Measure how much water each zone applies and watch the lawn for a few weeks.

Cycle and soak on slopes and clay

If water runs off before soaking in, split the watering into shorter cycles. The simplest way on a Pro-C is to add a second or third start time and halve the run times, so the program repeats with a soak period in between. Some versions also include a dedicated cycle and soak setting in the advanced features.

Programming for new seed or sod

New seed needs the top of the soil kept moist until it germinates. Use Program C for the seeded zones with three or four short start times spread through the morning and early afternoon and run times of just a few minutes each, enough to dampen the surface without puddling. Remove those stations from Program A while the seed establishes. Over several weeks, reduce the number of start times and lengthen the run times, then move the zones back into the regular lawn program once the new grass has been mowed two or three times. New sod needs longer, frequent watering for the first couple of weeks until its roots knit into the soil.

Saving and restoring programs

Many Pro-C controllers include a feature to save your program to memory and restore it later, sometimes called Easy Retrieve. Saving a working program makes it easy to recover if settings are lost after a power outage or if someone changes them by mistake. Check your manual for the button combination. If you need to clear everything and start again, see our guide on how to reset smart sprinkler controller settings, which also covers general reset steps.

Using the master valve and pump settings

Some systems use a master valve or a pump start relay that must open whenever any station runs. On many Pro-C versions, each station can be set to use or ignore the master valve or pump circuit, and this is usually on by default. If a station shows as running on the display but no water comes out, check that the master valve or pump setting is enabled for that station and that the valve wiring is connected to the correct terminal. Systems connected straight to city water without a master valve can ignore this setting.

Adding modules for more zones

The Pro-C is modular, which means you can add station modules to control more zones as your yard grows. Turn off power before adding a module, slide it into the next open slot, lock it in place and connect the new valve wires to its terminals. When powered back on, the controller recognizes the extra stations, and you can give them run times in the programs you choose. Check the maximum number of stations your model supports before buying modules, and label each new wire with its zone number for easy future repairs.

Troubleshooting a Pro-C that will not water

• Dial not on Run: return it to Run.
• No start time set for the program, or start times turned off.
• Water days not set or set to days that have not arrived yet.
• Rain sensor active: the display may show a sensor indicator; bypass the sensor to test.
• Seasonal adjustment at a very low percentage.
• Blown fuse or tripped circuit: check the power supply.
• Faulty valve or wiring: if one station never runs, test it manually and check its wire.

If the whole system will not start, see our guide on sprinkler system won't turn on.

Common programming mistakes

• Setting a start time for every station, which makes the whole program repeat many times.
• Leaving the dial off Run.
• Overlapping programs with start times too close together. Most controllers stack them so they run in order, but long programs can push watering into midday.
• Forgetting to turn off unused start times.
• Never using seasonal adjustment, so spring and fall get summer run times.
• Wrong date or time after a power outage if the backup battery is dead.

Making a Pro-C smarter

Hunter sells add-on sensors for rain, freeze and weather-based seasonal adjustment for many models, and some versions support Wi-Fi control through Hunter's apps. These upgrades bring some of the water-saving features of smart controllers to an existing Pro-C. For a comparison, see our smart irrigation system guide, or compare with how to program rachio 3. If you are considering a full replacement, compare options in our roundup of the best 4 zone irrigation controllers.

The bottom line

To program Hunter Pro-C, set the date and time, then for each program set start times, run times and water days, and return the dial to Run. Use seasonal adjustment instead of reprogramming every station, and use Manual and System Off for tests and rain delays.

Frequently Asked Questions