Overview
The Controller Rain Stop Jumper message indicates that the controller has detected an open rain sensor contact and has stopped all watering as a result. This message appears when the rain stop terminal on the two-wire board detects that the circuit is open, signaling the controller to halt irrigation until the contacts close again.
Understanding the Message
When this alert appears, you'll see the following information:
- Message title: Controller Rain Stop Jumper
- Date and time: When the rain stop contact was triggered
- Priority: Low
- Status: Rain stop contact's triggered, all watering has stopped
- Value: Open (indicating the circuit is currently open)
- Until: Closed (watering will resume when the circuit closes)
How the Rain Stop Terminal Works
Inside the controller, the two-wire board contains a series of jumper wires. One of these is the rain stop terminal. When this terminal detects an open circuit, the controller interprets this as a rain condition and stops all irrigation. The controller will not resume watering until the rain contacts are closed again.
This rain stop feature only applies to rain devices that are wired directly under the two-wire board. It does not apply to rain devices attached to the two-wire path.
Common Causes
Active Rain Sensor
The most straightforward cause is that it's actually raining. When rain is detected, the sensor contacts for your rain sensor open, triggering the controller to stop irrigation. This is the system working as designed to prevent unnecessary watering during rainfall.
Missing Rain Jumper Lead
The rain jumper lead may be completely missing from the rain stop terminal on the two-wire board. Without this jumper in place, the circuit remains open and the controller believes it's raining.
Loose Rain Jumper Lead
The rain jumper lead may be present but not properly secured. A loose connection at the terminal can cause intermittent or constant open circuit conditions, triggering the rain stop message.
Troubleshooting Steps
Check for Actual Rain Conditions
1. If it's currently raining or has recently rained, simply wait for the rain sensor to dry out. Once the sensor dries, the switch contacts will close automatically and irrigation will resume.
Inspect and Tighten the Jumper Lead
1. Open the controller and locate the two-wire board.
2. Find the rain stop terminal on the two-wire board where the jumper lead should be connected.
3. Check if the jumper lead is present and examine the screw terminal connection.
4. If the jumper lead is loose, tighten the screw on the terminal to secure the connection.
Replace a Missing Jumper Lead
1. If the jumper lead is missing entirely, replace it with a short piece of 18-gauge wire.
2. Connect the wire to the rain stop terminal, creating a closed circuit.
3. Ensure the connection is tight and secure.
Video Walkthrough
Video originally published May 2021.
If you have questions, here are 3 ways to get answers:
1. Search within this HydroPoint knowledgebase
2. Visit the HydroPoint support page
3. Call 800-362-8774 or email support@hydropoint.com, hours are Mon-Fri 3:00 AM – 6:00 PM PT and Sat 9:00 AM – 2:00 PM PT.