Bosch SHE3AR72UC/22 dishwasher Parts

Error 22 on a Bosch dishwasher like model SHE3AR72UC is most often caused by restricted draining, usually from debris in the filter area or sump. We fix it by cleaning the filters and checking the drain path; if it still won’t clear, we inspect the drain pump and drain hose.

What to do first (quick reset and cleaning)

• Turn the dishwasher off, then back on; try a Cancel/Drain to see if it will pump out.
• Remove the lower rack.
• Take out the filter assembly and clean it thoroughly with hot water and a soft brush.
• Wipe sludge, soap residue, and food debris from the sump area under the filter.
• Reinstall the filter correctly and run a short cycle to test.

For filter removal and correct reassembly steps specific to your unit, use the SHE3AR72UC manual.

Check the drain path (common causes)

A clean filter is step one, but Error 22 can return if the drain path is still restricted.

• Make sure the sink drain/disposer connection is not clogged.
• Verify the drain hose has a high loop (or air gap if used) and is not kinked.
• Check for a blockage where the hose connects under the sink.
• Listen during drain: a steady pump sound with little or no water flow points to a restriction.

If the hose is damaged, split, or permanently kinked, replacement is often the most reliable fix; see dishwasher drain hose 00668108.

When to suspect a part problem

If the filter and hose are clear but the dishwasher still won’t drain, the drain pump area is the next place we check.

Symptom	Most likely issue	What we do next
Hums but won’t drain	Pump jammed or failing	Inspect/replace dishwasher drain pump 00631200
Drains slowly	Partial blockage	Recheck hose, check valve, sump
Intermittent draining	Debris moving around	Clean sump again; verify filter seats fully

Why it matters

Error 22 is a protection response; when water can’t move out as expected, wash performance drops and standing water can lead to odors and redepositing soil on dishes.

Helpful reference

For a broader list of Bosch fault codes and what they mean, use Bosch dishwasher error codes.

Last updated: January 2026

Most Bosch built-in dishwashers, including the Bosch SHE3AR72UC, are designed to fit a standard 24-inch-wide kitchen opening; however, the exact cutout and clearance requirements for your specific installation should be confirmed in the SHE3AR72UC installation guide.

What “standard size” usually means for built-in dishwashers

In most U.S. kitchens, “standard” refers to the cabinet opening and how the dishwasher mounts, not just the door width.

• Standard built-in width is typically 24 inches
• Compact built-in width is typically 18 inches
• Height and depth can vary by model and by how the unit is leveled
• Mounting method (top-mount vs side-mount) can affect fit
• Door panel style (pocket handle vs bar handle) can affect clearance

What to verify for Bosch SHE3AR72UC before you buy or replace

We recommend checking these items in the installation instructions so you do not run into fit issues with the countertop, toe-kick, or cabinet frame.

Fit check	What to measure/confirm	Why it matters
Opening width	Cabinet opening side-to-side	Ensures the tub slides in without binding
Opening height	Floor to underside of countertop	Prevents rubbing and allows leveling
Depth/door clearance	Front of cabinets to back wall	Helps the door open fully without hitting trim
Utility routing	Water line, drain hose, power	Avoids kinks, pinches, and leaks

Why it matters

A dishwasher that is “standard size” can still be a poor fit if the opening height is tight, the floor is uneven, or the plumbing and wiring are routed where the unit needs to sit. Confirming the cutout specs helps prevent installation delays and return trips.

Related help for Bosch dishwashers

If you are troubleshooting after installation (for example, the unit will not start or shows a fault), use our Bosch dishwasher error codes reference to narrow down the cause.

Last updated: January 2026

For the Bosch SHE3AR72UC dishwasher, the most common service issue we see is a drain-related problem: water left in the tub because the filter area is clogged, the drain hose is restricted, or the drain pump cannot move water out. Start with cleaning and inspection steps in the SHE3AR72UC manual.

Quick checks we recommend first

These steps solve many “won’t drain” and “poor cleaning” complaints without replacing parts:

• Cancel the cycle and let the unit attempt a drain; listen for the drain pump running
• Remove and rinse the filter area; clear food debris and labels
• Check the sink drain and garbage disposal inlet (a common blockage point)
• Inspect the drain hose for kinks, crushing, or a low loop problem
• Make sure spray arms spin freely and holes are not plugged
• Run hot water at the sink before starting a cycle to improve wash performance

When it points to a part (common culprits)

If the tub is clean but symptoms persist, these model-compatible parts are often involved:

• Dishwasher drain pump 00631200 if you hear humming but little or no draining
• Dishwasher drain hose 00668108 if draining is slow or intermittent due to restriction
• Dishwasher check valve 00611320 if water drains out then flows back into the tub
• Dishwasher circulation pump with heater 12008381 if the unit fills and drains but cleaning is consistently weak

Symptom-to-likely-cause guide

Symptom	Most likely cause	What to do first
Water left in bottom	Clogged filter, restricted hose, weak drain pump	Clean filter area; inspect hose routing
Dishes not clean	Blocked spray arms, low water temp, circulation issue	Clean spray arms; run hot water before cycle
Random filling or overfilling	Inlet/float system issue	Check float movement; review install setup

Why it matters

Drain and circulation problems can cause odor, standing water, and poor cleaning. Catching a clog early can prevent strain on the drain pump and reduce repeat cycle failures.

Last updated: January 2026

To reset a Bosch dishwasher like model SHE3AR72UC, cancel the current cycle at the control panel (often by pressing and holding Start/Reset for about 3 to 5 seconds) until the unit drains and the display clears, then restart a new cycle. For model-specific button behavior, use the SHE3AR72UC manual.

Quick reset steps (most common)

• Press and hold Start/Reset for 3 to 5 seconds.
• Wait for the dishwasher to drain and stop running.
• Turn the dishwasher off, then back on.
• Select a new cycle and press Start.
• If the error returns immediately, note the exact code and symptoms.

If the dishwasher will not clear the error

Some error codes are “hard faults” that come back because the dishwasher is still detecting the problem.

• Drain-related codes or standing water: check for a clog, kinked hose, or a failing pump; the dishwasher drain pump 00631200 is a common fix when the unit hums but will not drain.
• Won’t start or stops right away: confirm the door is latching fully; a faulty dishwasher door lock 00630783 can prevent a cycle from running.
• Fill-related issues: verify the water supply is on and the inlet screen is not blocked; a sticking inlet valve can be involved.

What to check before you reset (prevents repeat errors)

Check	What you are looking for	Why it matters
Drain path	Food/debris in filter area, sump, or hose	Prevents drain errors and standing water
Door closure	Door closes firmly, no rack interference	Prevents start and safety lockouts
Power	Breaker not tripped, unit powers on normally	Prevents false resets and repeated shutdowns

Why it matters

A proper cancel/reset clears the control’s current cycle logic and lets the dishwasher re-check sensors (drain, fill, door). If the underlying issue remains, the same error code will usually return, which helps narrow the repair.

For decoding the specific code you see, use our Bosch dishwasher error codes guide.

Last updated: January 2026