There is a minimum amount of water required at the valve to push the rubber disc inside the valve down firmly enough to seal off the outlets other than the one in use. In most cases replacing the Stem and Disc Assembly, Cam, and or installing an AVB on the supply line will get a valve that fails to cycle back in operation.
#Fallout 4 disable water drift series
On 4000 series valves an AVB can be installed on the supply line before the valve if this is an issue. The 6000 series valve has an atmospheric vacuum breaker (AVB) built into the top of the valve to prevent this from happening. Also a worn cam even though it may look fine might have areas that have “flattened out” between the teeth that will cause the valve to stay stuck on one zone.Īfter the valve shuts down and water drains from the zone lines sometimes this can create a “vacuum lock” if air is not allowed to enter the valve to replace the water that has drained out. Over time the spring inside the plastic stem wears out causing the valve to fail to cycle, the spring may still be strong enough to bounce the stem and disc up and down on the pin at the bottom of the valve however it may not be strong enough to fully engage the teeth on the Cam. Inspect the only moving part inside the valve called the “Stem and Disc Assembly” also check the “Cam” which is the plastic part at the top of the valve the plastic stem tip goes into with internal teeth that advance the disc to the next outlet. Remove the top and check for foreign objects and any rough spots on the valves interior walls. The glue joints should be allowed to set for a minimum of 2 hours before testing the valve. Once pushed into the socket with the valve “right side up” the pipe should be held in for 15 seconds to allow the glue to set. The best method is to use purple primer and clear glue on the PVC only as the valve itself is not PVC but constructed of ABS plastic and a chemical reaction occurs between the two plastics when glue is applied to ABS that causes the PVC to be pushed back out of the socket. When installing the valves care should be taken to not let glue drip inside the valve and damage the interior, and when gluing PVC into the outlets or inlet no glue, cleaner or primer should be used in the sockets of the valve. The 6000 series valve has a built in atmospheric vacuum breaker (AVB) that vents the valve to the atmosphere upon shut down to aid in the valve draining so as to cycle to the next zone, the 4000 series valve does not have an AVB so even though the valves will usually work without one if needed due to problems with the valve draining one can be added on the supply line before the valve. The need for the valve to be installed as close as possible to the water source is to prevent the valve from skipping thru zones as the supply line fills purging air before reaching working pressure. Ideally the valve should be installed at the highest point of the system and as close as possible to the water source, if the valve cannot be installed at the highest point check valves will need to be installed on outlets that have zone lines higher than the valve to prevent back flow stopping the valve from cycling. Indexing valves are mechanical valves that change from one outlet to the next each time the water flow is stopped and started so they will work if controlled manually with a hand valve, automatically with an electric control valve or if used with a pump that has the means to start and stop the flow of water.
#Fallout 4 disable water drift driver
(Note: A nut driver tool is available to assist in removing black retainer nuts.) Replace switch or relay (refer to parts list) ensuring that the controller is properly rewired. The switch contacts or relay may be worn out. If the switch is activating sooner than desired, turn the adjustment screw counterclockwise slightly.Ĥ. With a small screwdriver, tighten the screw clockwise to cause the switch to active sooner.
A clicking of the switch should be heard when the switch arm is slowly pulled back at the halfway point between the edge of the time dial and the far edge of the timing pin. The switch adjustment screw is located on the switch cover. Remove the controller face from its enclosure after disconnecting power to the unit. Your Auto-Off-On knob may not be set properlyīe sure to turn the Auto-Off-On knob to AUTO position.ģ. Check the Setting and Operation instructions for programming the Daywheel.Ģ. This may be due to the Daywheel not being properly programmed.
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