Why does my Rain Bird 100-DV Control Unit valve slam on and off?
If your Rain Bird Control Unit's valve is slamming on or off, causing water hammer, the issue might be high water pressure. Check your system's water pressure. If it exceeds 80 psi (5,5 Bars), you should install a pressure regulator on the line before the valve. This will reduce the water pressure and prevent the valve from slamming.
How to fix a Rain Bird 100-DV valve that won’t shut off completely?
If the valve of your Rain Bird Control Unit won’t shut off completely, causing sprinklers to “weep,” try these steps: * Tighten the solenoid completely (¼ turn beyond hand tight), using the solenoid handle. * Also tighten the bleed screw and bonnet screws. * Use the external bleed screw to flush the valve. If the issue persists: 1. Turn off the water. 2. Unscrew the bonnet screws and remove the bonnet. 3. Remove the diaphragm and clean it in clear water. 4. Reinstall the diaphragm and bonnet. If needed, replace the diaphragm with kit number 210746-03.
What to do if the Rain Bird Control Unit valve won’t open?
If the valve on your Rain Bird Control Unit won’t open, here are a few things you can check: * Ensure the water source is active. * Verify that the controller has power. * Make sure the flow control is open. If these are not the issue: 1. Turn off the water. 2. Unscrew the bonnet screws and remove the bonnet, then inspect the body for any debris. 3. If the diaphragm is missing a filter, replace it with kit number 210746-03. 4. Turn off the water again. 5. Remove the solenoid and replace it with a solenoid that is known to be working. If the valve still doesn’t open, replace the solenoid.
Wrap 1.5 to 2 turns of Teflon tape around threads for a watertight seal.
Screw adapters into valve water ports and hand tighten.
Carefully tighten adapters 1-2 turns past hand-tight, avoid over-tightening.
Apply solvent cement to adapter/valve inlet and pipe for connection.
Cement lateral pipe to the adapter or valve outlet port.
Attach MB model valve to polyethylene pipe using clamps.
Select wire gauge meeting electrical specs; multi-strand, direct-burial wire recommended.
Use watertight connector for one lead on each valve to a common wire.
Connect the second lead on each valve to a power wire separately to the controller.
Turn solenoid handle counterclockwise to open internal bleed.
Turn flow control stem clockwise to reduce flow (DVF models).
Turn bleed screw counterclockwise to open external bleed for flushing.
Tighten solenoid, bleed screw, and bonnet screws; flush with external bleed.
Check water source, controller power, flow control; inspect body for debris.
Check system water pressure; install regulator if pressure exceeds 80 psi.
General| Voltage | 24 VAC |
|---|---|
| Color | Black |
| Holding Current | 0.2 A |
| Operating Pressure | 15 to 150 PSI |
| Flow Rate | 0.2 to 40 GPM |
| Connection | NPT |
| Type | Electric |
| Flow Rate (Drip Valve) | 0.5-20 GPM |
| Operating Pressure (Drip Valve) | Not applicable |
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