Bosch WAT28400UC/17 washer Parts

On the Bosch WAT28400UC washer, an E17 error points to a water fill problem, most often low water pressure or restricted water flow into the washer. Restoring normal water supply and clearing inlet restrictions typically clears the code; confirm the exact steps in the owner's manual.

What to check first (fast fixes)

• Make sure both hot and cold supply valves are fully open.
• Verify the household water pressure is strong at the washer faucets.
• Straighten any kinks in the inlet hoses and confirm they are not crushed behind the washer.
• Turn the washer off, wait 1 minute, then restart the cycle to see if the code clears.
• If the washer recently moved or was installed, confirm the hoses are connected correctly per the owner's manual.

Clean the inlet screens (common cause)

Many front-load washers have small filter screens where the inlet hoses connect to the washer. Sediment can clog these screens and slow filling.

• Unplug the washer.
• Turn off both water supply valves.
• Remove the inlet hoses at the washer connection.
• Rinse debris from the hose ends and carefully clean the washer inlet screens.
• Reconnect hoses, turn water back on, and check for leaks.

If E17 returns: likely causes and what they mean

Symptom	Most likely cause	What to do
Slow fill on all cycles	Low supply pressure or clogged screens	Check pressure, clean screens
Fills briefly then stops	Intermittent supply or restriction	Check valves, hose kinks
Won’t advance past fill	Fill time-out due to low flow	Restore flow, retry

Related issues that can look like an E17

A drain problem can sometimes confuse troubleshooting because the washer may keep trying to fill and drain. If you also notice standing water or poor draining, check the drain path and the pump filter. For this model, the washer drain pump filter 00647920 is a common service item.

Why it matters

When the washer cannot reach the correct water level in time, it protects the cycle by stopping and showing an error. Fixing the water supply issue prevents repeat errors, long cycle times, and poor wash performance.

For code lookups and symptom matching, use our Bosch nexxt front load washer error codes guide.

Last updated: February 2026

The Bosch WAT28400UC washer is a compact front-load washer; most washers in this Bosch class are typically around 2.2 to 2.5 cu. ft. capacity. For the exact rated capacity for your specific WAT28400UC version, we recommend confirming it in the owner's manual.

How to confirm the exact capacity

Capacity is usually listed in the specifications section of the manual and may be shown as drum volume or cubic feet.

• Check the Specifications or Technical data section
• Look for drum volume (often shown in liters) or capacity (cu. ft.)
• Match the rating to your exact version (some series have multiple variants)
• If you are comparing to another washer, compare cu. ft. and max load weight

Why capacity matters

Capacity affects load size, cycle time, and cleaning performance. Overloading a front-load washer can reduce tumbling action and contribute to poor rinsing, vibration, and drain issues.

Quick reference: what “compact” usually means

Washer type	Typical capacity range	Best for
Compact front-load (common for Bosch)	2.2 to 2.5 cu. ft.	Apartments, smaller loads
Full-size front-load	4.0 to 5.5 cu. ft.	Larger families, bulky items

Related troubleshooting if loads seem too small or cycles struggle

If the washer seems to bog down, drain slowly, or leave clothes too wet, these checks help:

• Clean the drain pump filter and check for debris
• Verify the drain hose is not kinked or pushed too far into the standpipe
• Reduce load size and avoid washing single heavy items alone
• If you see an error, use the Bosch nexxt front load washer error codes guide

Last updated: February 2026

The most common issue we see with Bosch washers like model WAT28400UC is a load that becomes unbalanced during spin, which can cause banging, vibration, or a stopped spin. The next most common is a drain problem caused by a clogged pump filter; both are usually resolved with basic maintenance.

Quick checks that fix the majority of complaints

• Pause the cycle and redistribute items (especially towels, blankets, and small mixed loads).
• Run a Spin/Drain cycle again after rebalancing.
• Make sure the washer is level and firmly on the floor.
• Clean the pump filter regularly (coins, lint, and hair are common blockages).
• Check the drain hose for kinks or a crushed section.

When it is likely a drain system problem

Drain issues often show up as standing water, slow draining, or a cycle that ends before a full spin. On this model, the most common serviceable drain-related items are:

Symptom	Most likely cause	What to do next
Water left in drum	Clogged pump filter	Clean/inspect the washer drain pump filter 00647920
Hums but will not drain	Obstruction or failing pump	Inspect for blockage; replace the washer drain pump 00145753 if needed
Leaks or poor drain flow	Hose damage or loose connection	Inspect/replace the washer drain hose 00656689

Why it matters

An unbalanced load mainly causes noise and wear, but repeated violent shaking can stress the suspension and tub. A drain restriction is more urgent because it can prevent proper spinning, leave clothes soaking wet, and overwork the drain pump.

Model-specific tip for WAT28400UC

Use the cleaning and maintenance schedule and the correct drain-filter access procedure in the WAT28400UC owner's manual. That keeps the drain path clear and helps prevent the most common “won’t spin” and “won’t drain” complaints.

Last updated: February 2026

On a Bosch washer like model WAT28400UC, the parts that fail most often are in the drain system, leak points (hoses and door boot), the drive system, and the electronic controls. Failures usually show up as not draining, leaking, not spinning, loud vibration, or no power.

Most common washer parts that fail (and symptoms)

• Drain pump and filter: won’t drain, stops mid-cycle, water left in tub
• Drain hose and outlet hose: leaks at the back, slow draining, siphoning issues
• Door boot and clamp: leaks at the door, musty odor, visible tears
• Drive belt: squealing, burning rubber smell, weak tumble or spin
• Motor and inverter/control: won’t start, intermittent stopping, no spin
• Shock absorbers: banging or excessive vibration during spin

Model-relevant parts to check first for WAT28400UC

Symptom	Likely cause	Example part for this model
Drains slowly or not at all	Clogged filter or failed pump	Washer drain pump filter 00647920 or washer drain pump 00145753
Leak at back or drain hookup	Cracked or loose drain path	Washer drain hose 00656689 or outlet hose 11023391
Leak at door opening	Worn boot or loose clamp	Washer door boot 20007274 or washer door boot spring clamp 00670743
Belt noise or no spin	Worn belt	Washer drive belt 00439490

What we recommend before replacing parts

• Unplug the washer and turn off both water supplies.
• Clean the pump filter and check the drain hose for kinks or clogs.
• Look for the exact leak location (door area vs. rear hoses).
• Use the WAT28400UC owner’s manual for model-specific access, cleaning steps, and error behavior.

Why it matters

Catching a clogged drain path or small leak early prevents repeat shutdowns, reduces odor, and helps protect the motor and control components from water damage.

Last updated: February 2026