This page assumes you’ve already read our full Dishwasher Not Draining guide. Everything below is specific to Bosch’s reset procedure, part locations, and error codes. If you’ve worked through the checks and it’s still not draining, our no-blockage follow-up guide covers the pump itself.
Bosch reset procedure
Hold the Start button for about 3 seconds until the display or indicator lights flash, this cancels the current cycle. If the dishwasher still won’t respond, cut power at the breaker for 1 minute. Bosch’s control boards clear most soft faults with this alone, before you touch the filter.
Where the filter and pump are on Bosch dishwashers
Pull the lower rack and you’ll find a three-piece filter assembly in the tub floor: a fine mesh filter, a coarse filter around it, and a micro-filter underneath. Twist the fine filter counterclockwise and lift the whole assembly out, then rinse all three pieces, not just the top one people usually notice. The drain pump sits lower in the sump, and on most Bosch models it’s less accessible than on American brands since the tub assembly is more enclosed. If the filter is clean and the pump still won’t clear, that’s a good point to call a technician rather than pull the unit apart.
Error codes you might see
E24 is Bosch’s direct drain-fault code and points to the filter or pump. E22 usually means restricted water flow because the filter needs cleaning, essentially Bosch’s dishwasher telling you to do the maintenance step above. E15 is a leak detected at the base pan, a different problem from either of those, so don’t assume a drain issue if that’s what’s showing.
Known Bosch pain points
New Bosch owners coming from a grinder-equipped brand are the most common source of drain complaints, they simply don’t clean the filter because their old dishwasher never needed it. Plan on checking it every one to two weeks if you don’t pre-rinse. The enclosed tub design also makes pump access a genuinely bigger job on Bosch than on Whirlpool or GE, so it’s worth ruling out the filter thoroughly before assuming you need a part.
Frequently Asked Questions
Why doesn't Bosch use a garbage-disposal-style grinder?
Bosch has chosen manual filtration across its whole lineup for quieter cycles and less strain on plumbing, a deliberate design decision rather than a missing feature.
What's the difference between E22 and E24?
E22 flags restricted water flow, usually a dirty filter. E24 is the direct drain-fault code and can involve the filter or the pump.
How often does the filter need cleaning?
Every one to two weeks with normal use, more often if you skip pre-rinsing or have hard water.
Is the pump easy to reach on a Bosch dishwasher?
No, less so than on many American brands. If the filter is clean and it's still not draining, that's a reasonable point to call a technician.
The information provided here is a diagnostic aid and does not replace the intervention of a qualified professional.
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