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Quick answer
For the LG LFXS28968S, water and ice stopping together does not prove that the door switch is good or bad. Start with LG's external checks: look for an error code, turn Control Lock off, confirm the household water valve is open and the visible supply line is not kinked, check for loose rather than clumped ice, and verify both doors close fully with the interior lights going out normally. A user's claim that the switch is not the cause is only an observation, not a diagnosis. If these checks do not restore dispensing, use LG service with the exact model; do not open the door or dispenser panels, bypass a sensor, or guess at a valve or control board.

Work through in order
Diagnostic checks
Use only checks that match the exact appliance or system and its official guide.
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Check 1
Confirm the product label is LFXS28968S and record the exact pattern: whether both water and ice fail, whether an error code or padlock appears, whether a door was recently moved, and whether a brief normal lever press produces any response. Do not remove a door or dispenser panel.
Expected result: Both functions fail together, a code or padlock is visible, or the display and doors look normal but neither dispenser responds.
Next step: Continue with the display and Control Lock check, then the household supply and normal door-closure checks; do not name an internal failed part from the symptom alone.
Why this matters
Why: The Reddit report supports the exact model and shared symptom, but a user's conclusion that the door switch is not involved is not a component test. The observation only selects the manufacturer's external checks.
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Check 2
Read the refrigerator display for an error code. If a locked padlock is illuminated, press and hold the Lock key for three seconds as LG directs, then make one normal dispensing attempt.
Expected result: An error is displayed, the padlock clears and dispensing returns, or the display has no error and remains unlocked without dispensing.
Next step: Follow LG's code-specific support path for a displayed error. If unlocking changes nothing, continue to the external water-supply and door-closure checks rather than repeating resets or opening the panel.
Stop if: Do not bypass the lock or continue testing if the display shows a fault that requires service or the appliance has a leak.
Why this matters
Why: LG says an error needs its code-specific support path, and an engaged Control Lock can prevent dispenser operation. Clearing the lock is a safe control check; it does not prove a door switch or board fault when the problem remains.
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Check 3
From outside the appliance, confirm the household shut-off valve supplying the refrigerator is open and the visible water line is not kinked, pinched or leaking. During one brief water-dispense attempt, listen only for whether the unit hums; do not remove tubing or test a valve electrically.
Expected result: The valve is closed, the visible line is kinked or leaking, water hums but no water arrives, or there is no water response.
Next step: Correct only a closed household valve or an obvious external kink without opening the refrigerator. If there is a leak, damaged line, or no improvement with the supply confirmed, stop and arrange service.
Stop if: Shut off the household valve and stop using the dispenser if the visible line or connection leaks; do not disassemble the water path.
Why this matters
Why: LG says the supply valve feeds both the dispenser and ice maker and that a kinked line can prevent water delivery. A hum or no hum is an observation only; it does not identify a failed inlet valve, pump or control board.
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Check 4
Close both refrigerator doors normally and check whether they latch without obstruction and the interior lights go out as the doors close. Inspect only the visible gasket and door area for an item preventing closure; do not remove hinge covers, use a magnet to defeat a sensor, unplug wiring, or open a panel.
Expected result: A door does not close fully, an obstruction is visible, or the interior light stays on after normal closure; alternatively both doors close and the lights behave normally.
Next step: Remove only a visible obstruction and close the doors normally once. If the light remains on or the doors cannot close, keep the dispenser off and request service; if closure is normal, continue only to the ice-bin and service decision.
Stop if: Do not force a door, bypass a sensor, remove a hinge cover or probe wiring.
Why this matters
Why: LG explains that the dispenser will not operate if the appliance thinks a door is open and relates door sensing to the interior lights. Normal lights do not exclude every switch or wiring fault, so the user's observation cannot by itself clear the door-sensing path.
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Check 5
With the refrigerator door open and the appliance otherwise intact, check whether ice in the bin is loose and whether the bin is seated normally; separate only loose external clumps as LG describes and discard clumps that will not separate. Do not reach into a moving auger or remove dispenser components.
Expected result: The bin is empty, ice is clumped, the bin is not seated, or the ice is loose and seated but water and ice still fail together.
Next step: Correct only a visible clump or seating issue and make one normal test. If water and ice still do not dispense after the lock, supply and door checks, stop repeated attempts and contact LG or qualified appliance service with LFXS28968S.
Stop if: Do not force the bin, enter the auger area, remove internal dispenser parts or order a valve/board from this symptom alone.
Why this matters
Why: LG says clumped ice can prevent proper ice dispensing and that the bin should be shaken to separate it, while this check cannot explain a simultaneous water failure when the water path is confirmed.
Use your observations
Decision map
Find the observation that best matches what you see, then follow the next safe action.
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PATH 01Next step
What you see
A padlock is lit and dispensing returns after the Lock key is held for three seconds.
Do this next
Leave the control unlocked only as desired and monitor normal operation. If dispensing still fails, use the water-supply and door-closure branches.
Why this path and its safety boundary
Why it matters: The documented Control Lock state was blocking the user controls; this result does not establish anything about the door switch or internal electronics.
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PATH 02Next step
What you see
The household valve is closed, the visible line is kinked, or a visible connection leaks; there is no need to infer an internal component.
Do this next
Open only the household shut-off valve if it was simply closed, correct no tubing beyond an obvious external position, or shut the valve and request service for a leak or damaged line.
Why this path and its safety boundary
Why it matters: The external supply condition can prevent both the dispenser and ice maker from receiving water, and a leak is a service/safety boundary.
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PATH 03Next step
What you see
A door remains ajar or an interior light stays on after normal closure, while the dispenser is silent.
Do this next
Remove only visible obstructions and stop if the light remains on. Keep the appliance closed and request service rather than removing hinge covers or bypassing the sensor.
Why this path and its safety boundary
Why it matters: The refrigerator may still be interpreting a door as open, which LG says prevents dispenser operation; a normal light observation does not rule out every sensor fault.
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PATH 04Next step
What you see
The lock is off, supply valve and visible line are normal, doors close and lights behave normally, and both water and ice still fail or work only after an unusual prolonged lever hold.
Do this next
Stop repeated dispenser tests and contact LG or qualified appliance service with the exact LFXS28968S model, the simultaneous water/ice failure, the display state and the results of these external checks.
Why this path and its safety boundary
Why it matters: The safe external branches are exhausted. The opened community report does not prove a cause, and LG's guidance sends an unresolved dispenser problem to repair service; no valve, board or switch diagnosis is supported here.
Helpful context
Understand the symptom
What the original report establishes
The opened case is specifically about an LG LFXS28968S: water and ice stopped dispensing together, and the poster reported that the door light and door-open behavior appeared normal. That is useful symptom context, but it does not electrically prove that a door sensor or any other part has passed. LG's exact product page and specification confirm the model and its integrated dispenser; the failure component remains unconfirmed.
Use shared external checks before a parts theory
Because both water and ice are affected, begin with the controls and conditions LG actually documents: display errors, Control Lock, the household water valve and visible line, normal door closure and interior-light behavior, and a loose ice bin rather than clumped cubes. These observations choose the next safe branch; they do not identify a water valve, dispenser motor, door switch or control board. If the external checks pass, stop repeated tests and request model-matched service.
When checks do not resolve it
Need a professional?
Request LG or qualified appliance service when both functions still fail after the external lock, supply, door-closure and ice-bin checks, when a visible water leak or damaged line is present, when the interior light stays on with a closed door, or when an error remains. Give the technician the exact LFXS28968S model and do not claim that a valve, board or door switch has failed without model-matched diagnosis.
Common questions
FAQ
Does the normal door light prove the LFXS28968S door switch is not involved?
No. It is a useful external observation, but LG says dispenser operation depends on the appliance recognizing the door as closed, and a normal light does not prove every sensor or connection. Check normal closure without bypassing or opening the hinge area; unresolved failure needs service.
What should I check when both water and ice stop dispensing?
Check the display for an error, turn Control Lock off, confirm the household water valve is open and the visible line is not kinked, close both doors normally and confirm the interior lights go out, then check for loose rather than clumped ice. These checks do not identify an internal part.
Should I replace the inlet valve or control board first?
No. The opened case and LG's general guidance do not establish a failed valve, board or switch. If the external checks pass and both functions still fail, stop repeated tests and provide LG service with the exact model and observations.
Read the exact guide
Official sources
- LFXS28968S.ASTCNA0: Support, Manuals, Warranty & MoreLG Electronics USA · Opened the exact LG USA product-support page. It identifies the 28 cu.ft. French Door Refrigerator and exposes manuals, troubleshooting and repair/contact routes; it does not diagnose the shared dispenser symptom.
- LG Refrigerator - Troubleshooting water/ice related issues in an LG fridgeLG Electronics USA · Opened LG's water/ice troubleshooting article. It supports confirming the under-sink valve, separating or discarding clumped ice externally, and keeping doors properly closed; it does not authorize internal repair or identify a failed valve/board.
- LG LFXS28968S water and ice not dispensing. Doesn't seem to be door switch failure.Reddit r/appliancerepair · Opened the exact Reddit post. It identifies the LFXS28968S, simultaneous water/ice failure, the author's door-light observation and delayed dispensing report; it does not confirm a repair or component cause.
- LG Refrigerator - Troubleshooting Dispenser IssuesLG Electronics USA · Opened LG's dispenser troubleshooting article. It supports external checks and says an unresolved dispenser problem requires repair service; its hinge-cover wiring step is intentionally excluded here because this article stays within safe external checks.
- LFXS28968S EnLG Electronics Canada · Opened the exact LG product specification PDF. It identifies LFXS28968S as a 28 cu.ft. French Door Refrigerator and lists an integrated ice-and-water dispenser, LT1000P filter, door alarm and child lock; it does not establish a failed component.
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