Where to find part number on Whirlpool dishwasher?
On your Whirlpool dishwasher model WDTA50SAKZ1, the most reliable identifier is the model and serial tag, not a part number. We use that tag’s model number to match the correct replacement parts because many internal parts look similar but vary by revision.
Where to look for the model and serial tag
Check these common locations on Whirlpool dishwashers:
- Along the top or side edge of the door (visible when you open the door)
- On the inner door frame near the latch area
- On the tub rim (the frame around the opening)
- Occasionally on the side of the cabinet (more visible if the unit is pulled out)
Write down the model number exactly as shown (for this unit: WDTA50SAKZ1) and keep the serial number handy for date and revision matching.
How to use that info to get the right part
Once you have the model number, match parts by part name + part ID. For example, if you need a door latch, use the exact listing such as the latch assembly (includes switch) W11412299.
Quick ID checklist
- Confirm the model number matches: WDTA50SAKZ1
- Match the part name to what you’re replacing
- Match the part ID (example: W11412299)
- Compare the old part’s markings (if readable) to the listing
- If the issue is a symptom (won’t start, won’t drain), diagnose first before ordering
Common “part number” vs “model number” confusion
| What you’re looking at | What it identifies | Where it’s found |
|---|---|---|
| Model number (WDTA50SAKZ1) | The dishwasher | Rating tag on the door/tub frame |
| Part ID (example: W11412299) | A specific replacement part listing | Parts listing for the model |
| Manufacturer part number (example: W11091934) | The OEM number for that part | Often on the part or in parts listing |
Why it matters
Using the model tag prevents ordering a look-alike part that does not fit your rack, latch, fill system, or control setup. That saves time and avoids return hassles.
Last updated: February 2026
How much does it cost to replace a drain pump on a Whirlpool dishwasher?
Replacing the drain pump on a Whirlpool dishwasher like model WDTA50SAKZ1 typically costs $150 to $400 total (parts plus labor). If the issue is a clog or a simple drain-path fix instead of a failed pump, the repair is often $50 to $150.
What drives the total cost
- Service call and labor time (accessing the pump usually requires pulling the dishwasher out)
- Whether it is a true pump failure or a blockage in the drain hose, air gap, or disposer inlet
- Extra parts needed (hose, clamps, seals)
- Water damage cleanup if a leak is found during diagnosis
Quick checks before you buy a pump
These steps often solve “not draining” without replacing parts:
- Cancel and drain the cycle; listen for the drain motor sound.
- Check the sink/disposer connection for a knockout plug (new disposer installs are a common cause).
- Inspect for kinks or clogs in the drain line.
- Clean the filter area and remove standing water, then retry a drain.
- If the dishwasher has power but will not run a drain, try a reset sequence.
For step-by-step help, use our guides: dishwasher not draining video and how to reset a Whirlpool dishwasher.
Common parts that affect draining on WDTA50SAKZ1
If you confirm the drain path is clear, these model-matched parts are often involved:
| Symptom | Most likely area | Example model-matched part |
|---|---|---|
| Hums but drains slowly | Restricted drain path | Hose-drain,e W11414944 |
| Won’t drain and leaves water | Pump or control issue | (Pump not listed in the parts shown) |
| Fills but then stops with water left | Fill and wash issues can mimic drain problems | Fill valve assembly W11434044 |
Why it matters
A dishwasher that cannot drain can trigger error codes, leave dirty water in the tub, and strain the pump and motor system. Verifying the drain hose and connection first prevents paying for an unnecessary pump replacement.
Last updated: February 2026
What's the most common problem with a Whirlpool dishwasher?
The most common Whirlpool dishwasher problem is a drain issue: water stays in the bottom because the filter area, drain path, or drain pump system is restricted. On Whirlpool WDTA50SAKZ1, we also frequently see “not cleaning well” complaints tied to low fill, spray arm blockage, or a weak wash pump.
Most common symptoms and what they usually mean
- Standing water after the cycle: clogged filter/sump area, kinked drain hose, or a drain pump problem
- Dishes still dirty: blocked spray arms, overloading, low water fill, or wash pump performance issues
- Leaks at the door: worn tub or door seals
- Won’t start or stops mid-cycle: door latch not sensing closed, control issue, or a stuck key
- Poor drying: rinse aid empty, plastic-heavy loads, or cycle selection
Quick checks we recommend first (fast, no parts)
- Cancel and drain; then check for water movement into the sink/disposer.
- Inspect the drain hose routing for kinks and a proper high loop/air gap.
- Clean the filter area and remove debris from the sump.
- Spin and rinse the spray arms; clear any plugged jets.
- Run hot water at the sink before starting to improve wash temperature.
Parts that commonly solve these problems on WDTA50SAKZ1
If the basic checks do not fix it, these model-matched parts are common next steps:
| Symptom | Likely part area | Model-matched example |
|---|---|---|
| Not filling or fills slowly | Water inlet / valve | Fill valve assembly W11434044 |
| Not draining or drains poorly | Drain path / hose | Hose-drain,e W11414944 |
| Leaking at the bottom of the door | Door bottom seal | Seal, door bottom W11664713 |
| Leaking around the tub opening | Tub gasket | Gasket-tub,d W11483553 |
| Won’t start, door won’t “click” shut | Door latch/switch | Latch assembly (includes switch) W11412299 |
Why it matters
Drain and fill problems can cascade: low water fill reduces cleaning, and poor draining can leave dirty water to redeposit soil. Fixing the root cause protects the wash motor, improves cycle results, and prevents odor buildup.
Helpful troubleshooting resources
Last updated: February 2026
What does E1 and F6 mean on a Whirlpool dishwasher?
On the Whirlpool WDTA50SAKZ1 dishwasher, the F6 E1 error code points to a water fill or water level detection problem. In most cases, the control is not seeing the expected water level change during filling, so it pauses or stops the cycle to prevent poor washing or overflow.
What usually causes F6 E1
Common causes we see on Whirlpool dishwashers include:
- Water supply valve under the sink is partially closed
- Kinked supply line or low household water pressure
- Inlet screen at the valve clogged with debris
- Fill system issue (inlet valve not opening consistently)
- Drain issue that siphons water out while filling (high loop/air gap problem)
- Control not getting the right “water present” signal (sensor or wiring related)
Quick checks you can do first
Start with the simplest items before replacing parts:
- Confirm the shutoff valve is fully open.
- Make sure the dishwasher is getting hot water at the sink first (run hot water 30 to 60 seconds).
- Check the supply line for kinks or crushing.
- Verify the drain hose has a proper high loop and is not pushed too far down the disposal or drain.
- Power reset: turn off the breaker for 1 minute, then restore power and try a cycle.
For model-specific code behavior and reset steps, use our how to reset a Whirlpool dishwasher guide.
Parts that commonly fix a fill or level error
If the basic checks do not help, these parts are common suspects on fill-related faults:
| Symptom | Most likely area | Part to consider (if applicable) |
|---|---|---|
| No water entering at all | Fill valve not opening | Fill valve assembly W11434044 |
| Slow fill or intermittent fill | Restricted inlet or weak valve | Water inlet W11535094 |
| Stops mid-fill and won’t continue | Fill/level detection circuit | Professional diagnosis recommended |
Why it matters
A dishwasher that cannot confirm proper fill level will not wash correctly and may stop to protect the pump and heater. Fixing the water supply or fill components restores normal cycle operation and helps prevent repeat error codes.
Last updated: February 2026





