04046 - Irrigation Control Hydro-Rain - Free user manual and instructions
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| Product Type | Irrigation Controller |
| Brand | Hydro-Rain |
| Model | 04046 |
| Dimensions | Approx. 6 x 4 x 2 inches |
| Weight | Approx. 1 lb |
| Power Supply | 9V battery (not included) or optional AC adapter |
| Number of Zones | Up to 4 zones |
| Watering Programs | Customizable schedules with multiple start times |
| Rain Delay | Adjustable delay up to 72 hours |
| Manual Operation | Manual watering option for each zone |
| Watering Duration | 1 minute to 4 hours per zone |
| Frequency | Daily, odd/even days, or custom intervals |
| Display | LCD screen with backlight |
| Housing Material | UV-resistant plastic |
| Waterproof Rating | IP54 (splash-proof) |
| Operating Temperature | 32°F to 120°F (0°C to 49°C) |
| Battery Life | Approximately 12 months with normal use |
| Compatibility | Standard 24VAC sprinkler valves |
| Maintenance | Clean filter regularly; replace battery annually |
| Safety | Low voltage; automatic shutoff if malfunction detected |
| Spare Parts | Replaceable battery; contact manufacturer for other parts |
| Warranty | 1-year limited warranty |
Frequently Asked Questions - 04046 Hydro-Rain
How do I set the current time and day on my Hydro-Rain 04046?
Press the Time button, then use the + and - keys to adjust. Press Enter to confirm. Repeat for the day.
How many watering programs can I create?
The controller supports up to 4 independent programs (A, B, C, D), each with its own schedule.
What type of battery does the 04046 use?
It requires a standard 9V alkaline battery for memory backup during power loss.
How do I set a rain delay?
Press the Rain Delay button, then use + or - to set the delay (0-72 hours). The display will show the remaining delay time.
Can I manually water a zone?
Yes, turn the dial to Manual, select the zone, set the watering duration, and press Start.
Why is my controller not turning on?
Check the battery connection and replace if dead. Ensure the battery is installed with correct polarity.
How often should I clean the filter?
Inspect and clean the filter at least twice a year, or more often if water quality is poor.
Is the controller waterproof?
It has an IP54 rating, meaning it is splash-proof. Avoid submerging or direct high-pressure water.
What valves are compatible with this controller?
It works with standard 24VAC solenoid valves commonly used in residential irrigation.
How do I winterize the controller?
Remove the battery and store the controller indoors at temperatures above freezing. Drain all water from the system.
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