Starts cycle but tub stays dry
You close the door, the machine responds, maybe drains briefly, but no wash water ever comes in.
Start here: Check that the water shutoff is fully open and the supply line is not kinked or crushed.
Dishwasher fill problem
Asko Dishwasher Not Filling With Water
Direct answer: If your Asko dishwasher is not filling with water, the most common causes are a closed or restricted water supply, a stuck dishwasher float, a clogged dishwasher water inlet screen, or a fill valve that is getting power but not opening.
Most likely: Start with the easy physical checks: make sure the water shutoff is fully open, the supply line is not kinked, the tub is emptying normally, and the float area is not jammed with debris.
When a dishwasher will run a cycle sound but the tub stays dry, you want to separate lookalikes fast. A machine that never starts is different from one that keeps draining, and both are different from one that tries to fill but gets only a trickle. Reality check: a lot of 'not filling' complaints are really 'still draining' or 'not enough house water getting to the valve.' Common wrong move: replacing the dishwasher water inlet valve before checking the shutoff valve and inlet screen.
Don’t start with: Do not start by ordering a control board or tearing the door apart. Most no-fill calls end up being a supply issue, standing-water issue, or a stuck fill component down low.
If you hear a drain pump running over and over,go to the keeps-draining path before buying fill parts.
If it latches, starts, and stays quiet with a dry tub,check the water supply and float area first.
Last reviewed: 2026-04-17
What the no-fill problem looks like
Only a small amount of water enters
You see a shallow puddle in the sump area, but not enough water for proper washing.
Start here: Look for a restricted dishwasher water inlet screen or weak house water flow to the dishwasher.
Keeps draining and never fills
You hear the drain pump run repeatedly or for a long time, and the tub never moves into a normal fill.
Start here: Treat this like a drain or leak-sense issue first, not a fill-valve problem.
Buzzing or humming during fill time
The dishwasher acts like it is trying to take water, but you hear a hum and little or nothing enters.
Start here: Check the supply valve, inlet hose, and dishwasher water inlet valve screen for blockage before assuming an electrical failure.
Most likely causes
1. Water supply to the dishwasher is partly closed or restricted
This is the most common no-fill cause, especially after sink work, moving the dishwasher, or a recent shutoff. A half-open valve or kinked line can give you no water or just a weak trickle.
Quick check: Find the dishwasher shutoff under the sink or nearby, make sure it is fully open, and inspect the supply line for sharp bends or crushing.
2. Dishwasher float is stuck in the up position
If the float or float area is jammed by debris, soap buildup, or a misplaced utensil, the dishwasher thinks the tub is already full and blocks filling.
Quick check: With power off, move the float gently by hand if your model has an accessible float dome or float area inside the tub. It should move freely and not feel wedged.
3. Dishwasher water inlet screen is clogged
Sediment from the house line can pack into the inlet screen and starve the valve. That often shows up as slow fill first, then no fill at all.
Quick check: After shutting off power and water, inspect the inlet connection area for a debris-packed screen where the supply line feeds the dishwasher valve.
4. Dishwasher water inlet valve has failed
If water supply is good, the float is not stuck, the machine is actually calling for water, and the valve only hums or stays shut, the valve itself is a strong suspect.
Quick check: Listen during the first fill window. A steady hum with confirmed water supply points toward a stuck or failed dishwasher water inlet valve.
Step-by-step fix
Step 1: Make sure this is really a no-fill problem
Dishwashers often drain for a short time at the start. If yours keeps draining, or never really starts, you can waste time chasing the wrong part.
- Start a normal cycle and listen for the first 1 to 3 minutes.
- Expect a brief drain-out at the beginning. That by itself is normal.
- Open the door after that first drain period and check whether any fresh water has entered the tub.
- If the drain pump keeps running and running with little pause, treat it as a keeps-draining problem instead of a fill problem.
- If the dishwasher will not latch, start, or respond normally, treat it as a start or door-latch issue first.
Next move: If you confirm the machine is trying to run a cycle but no fresh water enters, stay on this page and check the supply path next. If it never gets past draining or never really starts, the fill valve is probably not your first problem.
What to conclude: This separates a true no-fill complaint from a drain, leak-sense, or startup problem.
Stop if:
- The dishwasher keeps draining continuously and never transitions toward filling.
- You see water leaking underneath the dishwasher.
- The machine trips a breaker, smells hot, or shows signs of electrical damage.
Step 2: Check the dishwasher water supply first
A closed shutoff, kinked line, or weak supply is more common than a bad internal part and is the least destructive thing to verify.
- Turn off power to the dishwasher before reaching around under it.
- Find the dishwasher water shutoff valve, usually under the sink or in the adjacent cabinet, and make sure it is fully open.
- Inspect the dishwasher water supply line for kinks, flattening, or rubbing damage.
- If the line was recently moved, straighten any sharp bend that could choke flow.
- If you are comfortable doing it, close the shutoff, place a towel under the connection, and confirm the supply line is not obviously packed with debris at the connection point.
Next move: If opening the shutoff or correcting the line restores filling, run a full cycle and watch the first fill to make sure flow is steady. If the shutoff is open and the line looks fine, move on to the float and tub checks.
What to conclude: Good water supply at the dishwasher narrows the problem to the dishwasher fill controls or inlet path.
Step 3: Check for a stuck float or a drain-related false full condition
If the dishwasher thinks it is already full, it will refuse to bring in water even when the supply is fine.
- Disconnect power to the dishwasher.
- Open the tub and remove the lower rack so you can see the bottom clearly.
- Look for a float dome, float area, or debris around the sump that could hold a float up or interfere with normal water-level sensing.
- Clear away food bits, labels, broken glass, or a stray utensil carefully.
- If there is standing water left from the last cycle, do not assume a fill problem. A dishwasher that cannot drain properly can act like it is not filling on the next start.
Next move: If the float was jammed and now moves freely, restore power and test the next cycle. If the tub is clear and the dishwasher still stays dry, inspect the inlet screen and valve area next.
Step 4: Inspect the dishwasher water inlet screen and valve area
Sediment at the inlet is a very common reason for slow fill or no fill, especially after plumbing work or in homes with mineral debris in the lines.
- Shut off power and the dishwasher water supply.
- Access the lower front area as needed to reach the dishwasher water inlet connection.
- Place towels under the connection and disconnect the supply line from the dishwasher water inlet valve.
- Check the inlet screen for grit, scale, or debris packed into the opening.
- Clean loose debris gently with water and a soft brush. Do not gouge the screen or force debris deeper into the valve.
- Reconnect the line, reopen the shutoff, and check carefully for leaks before restoring power.
Next move: If the dishwasher now fills normally, the restriction was in the inlet path and you likely do not need a replacement part. If the screen is clear, supply is good, and the dishwasher still will not take water, the valve itself becomes the leading suspect.
Step 5: Replace the likely failed fill component or move to service
Once supply, float, and inlet restriction are ruled out, the remaining common repair is the dishwasher water inlet valve. If the machine is not sending power to the valve, diagnosis gets more technical.
- If the dishwasher has confirmed water supply, a clear inlet screen, no stuck float, and it still hums or stays dry during fill, replace the dishwasher water inlet valve.
- If the valve is visibly leaking, cracked, or mineral-frozen, replace it even if it sometimes lets a little water through.
- After replacement, run the first few minutes of a cycle and confirm a normal fill, no leaks, and normal wash action.
- If there is no hum, no fill, and no clear supply problem, stop short of guessing at electronics. At that point, a door-latch, wiring, or control issue is possible and service is the cleaner next step.
- If your dishwasher actually keeps draining instead of filling, use the keeps-draining troubleshooting path rather than replacing the fill valve.
A good result: If the new valve restores a normal water level and the dishwasher washes normally, the repair is complete.
If not: If a new valve does not fix it, the problem is likely in the latch, wiring, level sensing, or control side and needs deeper diagnosis.
What to conclude: This is the point where a fill-valve replacement is justified. If that does not solve it, the fault is no longer a simple supply-side problem.
Replacement Parts
Repair Riot may earn a commission from qualifying purchases, at no extra cost to you.
FAQ
Why does my Asko dishwasher make noise but not fill with water?
Most often it is either doing its normal short drain at startup, the water supply is restricted, or the dishwasher water inlet valve is humming but not opening. Confirm whether fresh water ever enters after that first drain period.
Can a clogged filter cause an Asko dishwasher not to fill?
Not directly in most cases. A dirty filter is more likely to affect draining and wash performance. But if the dishwasher leaves standing water behind, the next cycle can act like a no-fill problem because the machine thinks the tub is already full or stays in a drain-related condition.
How much water should be in the dishwasher after it fills?
You usually will not see a deep tub of water. You should see enough water in the sump area for proper wash action, not a bone-dry bottom and not just a faint damp spot. The spray action should sound wet and steady, not dry and hollow.
Is it safe to clean the dishwasher water inlet screen myself?
Yes, if you shut off power and water first and you are comfortable disconnecting the supply line. Clean it gently with water and a soft brush. Do not poke hard into the valve or damage the screen.
Should I replace the dishwasher water inlet valve first?
No. Check the shutoff valve, supply line, float area, and inlet screen first. Replace the dishwasher water inlet valve only after those checks support that call.
What if my Asko dishwasher keeps draining and never fills?
That points away from a simple fill problem. It is more often a drain, leak-sense, or water-left-in-tub issue. Use the keeps-draining or leaves-water-in-bottom path before buying fill parts.