Troubleshooting OpenSprinkler

The following is the management interface of OpenSprinkler, which is available via Android or IOS app or web interface, simply referred to as an app.

The following information applies to everyone OpenSprinkler-Variants, too OSPi. The “display” takes place in the app.

These instructions are intended to help you when one or more solenoid valves are OpenSprinkler NOT to be opened or closed.

• If a solenoid valve can be opened but not closed, there is a defect in the solenoid valve or it is a solenoid valve that is not working OpenSprinklerversion fits. Self-retaining valves can only be used with the OpenSprinkler Latch version can be used with 24VAC valves only OpenSprinkler AC and DC. 12VDC valves only with OpenSprinkler DC.
• If a solenoid valve CANNOT be opened, please first check whether there is water in the line. Some valves do not even open if there is no water in the line. Most valves click when opening and when closing. With many valves, the solenoid coil can be unscrewed from the valve. This makes it much easier to check whether the valve or the solenoid is the problem. If the valve does not click when activating the irrigation circuit, first check the wiring.

A) Wiring check

Open your app OpenSprinklers and open a watering circuit directly from the home screen. Enter 1 hour as the running time.

1. The display shows 0mA

There is probably a damaged wire somewhere on them or there is no solenoid valve connected.

a) Disconnect both green connectors from OpenSprinkler .

Take a meter and measure resistance between COM and a valve, it should about 75 ohms .
If it is infinite or in the megaohm range, then there is no longer a connection.
However, if it is less than 5 ohms, then you probably have a short circuit on the wires.
(The resistance values ​​refer to a Rainbird 100 HV solenoid valve. Other manufacturers have similar values)

b) Plug the two green connectors into yours OpenSprinkler

Take a meter and measure the voltage between COM and the affected irrigation circuit. Then use the APP to open this irrigation circuit.
- OpenSprinkler DC: Measure DC voltage (V=). The voltage should show about 7,0-7,5V (or the voltage of the power source)
- OpenSprinkler AC: Measure AC voltage (V~). You voltage should show about 22-25V
- OpenSprinkler Latch: Measure DC voltage (V=). Since only short pulses occur, you have to open and close the irrigation circuit several times for a measurable value to appear.

Alternatively, a current measurement can also be made. Attention: A current measurement must ALWAYS be made via a resistor. NEVER measure without consumers! Always measure loads in series, never in parallel! That's right Com->Consumer->Measuring device->Irrigation circuit. To use the internal display, the consumer should have 75-250Ohm and be measured only a few seconds.
For example, a 180Ohm resistor should be connected to a OpenSprinkler Show DC 19-24mA. A 220Ohm resistor about 14mA

If neither voltage nor current can be measured on an active irrigation circuit, then the OpenSprinkler malfunction. Contact the OpenSprinkerShop service.

DC boost time: The OpenSprinkler DC has an option “DC Boost Time” in the settings. If a valve does not open fully, you must increase this value. This value defines the time in which the voltage is "turned up". Background: In order to open a 24VAC valve with DC voltage, it only needs a large starting impulse in order to obtain sufficient opening energy. The valve is then supplied with the normal power pack voltage.

2. The display shows over 900mA

Immediately close the irrigation circuit of yours with the app OpenSprinklers or unplug the power cord
There is probably a short circuit in the wire pairs. Eliminate the short circuit and measure the line as in 1a. through.

B) Programs do not switch at the desired time

Check in OpenSprinkler following settings

• Is the program active and does it have the correct time?
• Hat OpenSprinkler the right time AND time zone? In the options under "System" you should check your location, time zone and device time. Under "Advanced" you can set your own time server with "NTP IP address", eg your Fritz!Box. the “NTP Sync” option must be active for the time to be set automatically. Would you like the time of her OpenSprinklers manually, DISABLE the “NTP Sync” option, then you can enter the time manually under “System”.
• If you use the weather service, it can happen on rainy or cool days that the watering level "Water Level" is at 0%, ie according to the weather service it is wet enough to stop watering. If you do not want this, deactivate the “Use weather service” option in the program. Alternatively, you can activate the "Ignore rain" option in the irrigation circuit. This is necessary in the greenhouse, for example, so that watering can still take place when it rains.