Last Updated on October 4, 2026 by Umar Farooq
If the Active WaterJet won’t produce water, check the top door before anything else — closed is the most common cause, and it’s an interlock rather than a fault. Samsung documents this exact scenario: “If only the Activewash sink is not filling, make sure the top door is open. The jet will not work if the top door is closed” (water fill issues with Samsung washing machines). Read that first clause again. Samsung is describing a washer whose main fill is working normally — which is precisely the machine most people are standing in front of when they decide the jet has failed.
That “only the Activewash sink” wording is the whole diagnosis in miniature. The jet is a separately controlled water path with its own valve, so everything reassuring about the main fill — the tub fills, cycles run, pressure is obviously fine — tells you almost nothing about whether the jet should work. A machine that otherwise behaves normally feels like proof the plumbing is good, and that assumption is what sends people to the jet valve first instead of last.
This page covers the Active WaterJet (also branded Activewash) built-in faucet on select Samsung top-load washers — the small sink-like fill point in the lid area, used for pretreating stains by hand. It is not about a washer that won’t take water at all. If the regular fill cycle isn’t bringing water into the tub either, that’s a supply-and-inlet problem affecting the whole machine rather than one feature, and washing machine not filling with water is the page for it.
Confirm the model and feature applicability for Samsung Active WaterJet not working
Active WaterJet is a built-in faucet on select Samsung top-load washers, not a standard fitting on every top-loader. Confirm your machine physically has the sink-like fill point in the lid area, and that your manual or model listing names “Active WaterJet” or “Activewash”. If the faucet isn’t there, there is nothing on this page to fix — what you’re seeing belongs to the washer’s ordinary water supply, which is a different diagnosis with different checks.
The naming is worth a moment, because it trips people up in manuals and in search. The control on the panel says Active WaterJet; Samsung’s own support text calls the same thing the “Activewash sink.” One feature, two names, and they appear across different documents. So a manual that never uses the phrase “Active WaterJet” has not necessarily ruled the feature out — match the hardware you can see in the lid, not the wording you expected to find.
Define the expected behavior before calling it a fault
A large share of Active WaterJet complaints describe a feature working exactly as documented. It activates on command, not automatically: “Touch the Active WaterJet button to turn on the faucet, and then touch the button again to stop the water,” used specifically to pretreat clothes before starting a cycle (cycles, settings, and features on your Samsung washing machine). If you have been waiting for the jet to run at some point during a wash program, it was never going to. That isn’t a fault developing.
The second documented behavior is that the jet uses cold water exclusively — there’s no hot or warm setting for it on any model that has it. That matters more than it first sounds, because it makes the feature dependent on exactly one supply line. A cold valve that’s closed, kinked or swapped with hot at the inlet takes the jet out completely, while the main fill carries on with whatever supply it can still reach. A cold-only feature is the first thing on the machine to go quiet after a bad reconnection.
Normal behavior vs. an actual fault
A jet that stays dry while the top door is closed is documented behavior, and no amount of button-pressing will change it. The same goes for expecting warm water from the faucet: Samsung’s guidance confirms “the jet only uses cold water” regardless of model or cycle selection. A genuine fault is narrower than most people assume — no water at all from the faucet with the top door confirmed open and the cold water supply confirmed connected and turned on.
Complete the prerequisite and setup checks
Both prerequisites below are free, reversible and take under a minute, which is exactly why they belong before any conclusion about hardware. They also fail silently. Neither a closed top door nor a shut cold valve produces an error code, a beep or anything on the display — the button registers your press and nothing happens, which is indistinguishable from a dead valve if you’re judging by symptoms alone.
So work them in order and confirm each one rather than assuming it. “The door was open” and “the door was confirmed open at the moment the button was pressed” are different statements, and only the second rules anything out. That distinction is what the rest of this page hangs on.
Open the lid or top door as required by the model
- Confirm the top door — the small lid section over the WaterJet faucet, separate from the main lid on some models — is fully open before pressing the button.
- If your model combines WaterJet access with the main lid, confirm the main lid is fully open, not cracked or resting unlatched.
- Press the button again after the door is confirmed open. The documented control is a simple on/off toggle, and a closed door blocks it silently even when the press registers.
!Close-up of water flowing from a steel faucet
Confirm cold-water supply because the jet may use cold water only
- Check that the cold water supply valve behind the washer is fully open. Partially closed counts as closed for a low-flow feature like this.
- Confirm the cold inlet hose isn’t kinked, and that it’s on the cold inlet specifically.
- Don’t expect warm or hot water here under any circumstances. Missing hot water elsewhere in the washer is a separate inlet-valve question, not evidence about the jet.
- If the washer was recently installed or moved, verify both hoses sit on their correspondingly labeled inlets. A swapped pair hits cold-only features like this one first.
Stop-use warning: Never defeat the top-door interlock or force the mechanism to run the jet with the door closed. It’s a safety interlock, and bypassing it puts water where the design doesn’t expect it. If water pools anywhere other than directly under the faucet opening, stop and check the faucet seating before using the feature again.
Diagnose Active WaterJet, cold inlet, jet valve in evidence order
Diagnosis here works by subtraction, and the useful discipline is recording what you observed rather than what you did. Each row below is an observation that eliminates part of the machine, which is why the wording is deliberately specific about what was confirmed rather than what was assumed. Ordered this way, the two prerequisite rows account for the large majority of “Active WaterJet not working” reports, and only the lower rows point toward anything you would pay someone to open up.
One row exists to be dismissed. “The rest of the washer fills fine” is the observation nearly everyone arrives with, and it is the single piece of evidence that carries no weight at all here. The jet has its own valve on its own path, so a healthy main fill neither implicates it nor clears it — it only feels like it does.
| What you observed | What it points to |
|---|---|
| The main tub fills normally on every cycle | Nothing about the jet — separate path, separate valve. This observation rules out nothing |
| Top door confirmed closed when button was pressed | Expected interlock behavior — open the door and retry |
| Door open, but cold water supply valve confirmed closed or restricted | Water supply issue, not the jet itself |
| Door open, cold supply confirmed on and unrestricted, still no water | Likely a jet valve or internal fault |
| Jet works but only intermittently or at reduced flow | Possible partial blockage, low household pressure, or valve wear worth monitoring, not necessarily failure yet |
Work the table top down. If you can’t place your own situation in a row, the missing piece is almost always a prerequisite you assumed rather than confirmed.
Avoid the common incorrect repair for this exact intent
The mistake that defines this symptom is ordering a jet valve — or booking the visit that leads to one — without ever confirming the top door was open at the moment the button was pressed. The interlock is documented and deliberate, and from the outside it does a perfect impersonation of failed hardware: same button, same silence, same dry faucet. An enforced refusal and a broken valve are indistinguishable until you check the one condition that separates them.
That pattern isn’t unique to this feature. Washers spend most of their time declining rather than failing — checking a condition, disliking the answer, and quietly doing nothing about it. Work the permissions before the parts. On the Active WaterJet there are only two permissions worth the name: top door open, cold water on. Confirm both, and a dry faucet stops being a guess and becomes evidence.
Verify the feature or model behavior after correction
One successful burst of water isn’t a confirmed repair. The things you just corrected — a door not quite open, a supply valve not quite on — are also the things most likely to reappear without you noticing, so a single result tells you the jet can work, not that it will. Test the toggle in both directions, then test it again on a separate occasion before you consider it settled.
- Press the Active WaterJet button and confirm water flows within a few seconds.
- Press it again and confirm the water stops promptly, matching the documented on/off toggle.
- Repeat once more on a separate occasion to confirm the result is consistent.
- After pretreating, touch the Power button to drain the tub before starting a full cycle, as Samsung’s instructions describe.
If the jet still won’t produce water with the door confirmed open and the cold supply fully on and unrestricted, stop repeating the setup check. You now have evidence of an actual fault rather than an unmet condition.
When Samsung Active WaterJet not working needs professional service
This symptom has an unusually clean stopping point, which isn’t true of every washer complaint. Once both prerequisites are confirmed and the faucet is still dry, you have exhausted everything reachable without opening the machine — what’s left sits behind the panel, on a water line. Samsung’s own guidance stops in the same place, telling you to “visit our Support Center to request service.” Hand it over there rather than working through parts by elimination.
One thing to separate out first. If a code is showing on the display alongside the dry faucet, diagnose the code and not the jet — Samsung’s fill family (4C, 4E, nF) means “Water is not entering the washer correctly,” which is a whole-machine supply fault rather than a feature-specific one (Samsung washing machine information and error codes). If that’s what you’re seeing, Samsung washer 4C or 4E error is the right page.
Book service once any of the following is true:
- The jet won’t work with the top door confirmed open and the cold water supply confirmed on.
- Water leaks from the faucet housing or the area around it, rather than only flowing when the button is pressed.
- Flow is present but weak or inconsistent across multiple uses, with supply and door prerequisites confirmed.
- You’re not confident checking the hose connections behind the washer yourself.
FAQ
Does Active WaterJet automatically turn on during a wash cycle?
No. It’s a manually activated pretreat feature with its own button, used before you start a cycle.
Can I get warm or hot water from the Active WaterJet?
No. Samsung’s documentation confirms the jet uses cold water only, on every model that has it. No setting changes this.
My washer’s main tub isn’t filling with water at all — is that the same issue?
No, that’s a whole-machine fill problem rather than this feature. See washing machine not filling with water.
My top-load washer isn’t agitating properly — is that related to the WaterJet?
Not directly. They’re separate systems. See washing machine not agitating if that’s the real symptom.
Is Active WaterJet the same feature as AddWash?
No. AddWash is a small secondary door for adding items mid-cycle on front-load washers; Active WaterJet is a pretreat faucet on top-load washers. See Samsung AddWash door won’t open if you have a front-load AddWash model.
Do I need to drain the tub manually after using the WaterJet to pretreat clothes?
Yes. Samsung’s instructions say to touch the Power button to drain the tub before starting your regular cycle, rather than beginning with standing water already in the tub.
Will low water pressure affect the WaterJet even if everything else checks out?
Yes. Unusually low household pressure gives a weak stream even with the door open and the valve fully on. If other cold-water fixtures in the house also run weak, that’s household plumbing — see washing machine fills too slowly.
