No water flow to the house when softener is in service position

Safety: Turn off main water supply before disconnecting any plumbing. Relieve pressure by opening a faucet.

• Check bypass position: Verify the Culligan bypass is fully in the “Service” position. If in doubt, place in full bypass to restore water temporarily.
• Inspect inlet screen: Many Culligan valves have an inlet screen. Shut off water, remove the inlet fitting, and clean any debris from the screen.
• Test in bypass: If water flows normally in bypass but not in service, the issue is inside the valve or resin tank.
• Valve and resin check: A severely fouled piston or collapsed resin bed can block flow. These repairs usually require a technician to inspect the valve internals and resin tank.