How to Fix Soft food filter clogged on Bosch SHSM63W55N (300 Series)

Soft food filter clogged

This step-by-step repair guide walks you through fixing soft food filter clogged on your Bosch SHSM63W55N (300 Series). With the right tools and parts, most homeowners can complete this repair in 1–2 hours and avoid a costly service call.

Part of our Top 20 Dishwasher Models & Common Repair Issues Guide. Browse all dishwasher repair guides for related models and issues.

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Common Symptoms & Causes

If your Bosch SHSM63W55N is leaving dishes dirty or standing water in the tub, a clogged soft food filter is likely to blame.

• Dishes come out with visible food debris or a gritty residue after a full cycle
• Standing water remains at the bottom of the dishwasher tub after washing
• A foul or musty odor develops inside the dishwasher between uses
• Spray arms produce noticeably reduced water pressure during the wash cycle

This issue is typically caused by accumulated food particles, grease, and mineral buildup blocking the soft food filter mesh over time due to infrequent cleaning.

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Safety First

• Unplug the dishwasher from the power outlet before starting any repair — never work on a live appliance.
• Shut off the water supply valve before disconnecting any water lines or hoses.
• Wear work gloves when handling metal brackets, sheet metal edges, or sharp components.
• Take photos with your phone before disconnecting any wiring harnesses or connectors.
• Work in a well-lit area with enough floor space to lay removed panels flat.

Tools & Parts Needed

Essential Tools

• Phillips #2 screwdriver
• Torx T20 screwdriver
• Needle-nose pliers
• Multimeter
• Flashlight

Replacement Parts

• Bosch filter assembly (3-piece)
• soft brush
• white vinegar

Step-by-Step Repair Instructions

Step 1

Remove the lower rack to give yourself clear access to the bottom of the tub, then pull the lower spray arm straight up and off its center post — it should lift off without tools. You’re clearing the path to the filter assembly sitting in the center sump area; if the spray arm feels stuck, check for debris locking it in place rather than forcing it, which can crack the post.

Step 2

Twist the entire filter assembly counter-clockwise a quarter turn to unlock it, then lift it straight out of the sump. Separate it into its three layers — the coarse mesh filter, the fine mesh filter, and the microfilter plate — so you can clean each surface individually; leaving them nested together means trapped food particles get pushed back in during rinsing.

Step 3

Rinse each layer under warm running water, using a soft-bristle brush on the fine mesh to dislodge compacted food without stretching or tearing the mesh — never use steel wool or abrasive pads, which will create gaps that let debris bypass the filter entirely. For heavy white calcium buildup, soak all three layers in undiluted white vinegar for 10 minutes, which breaks down mineral deposits that water alone won’t shift.

Step 4

While the filter layers are soaking or drying, clean the filter housing in the sump floor with a soft brush and warm water to remove any settled food debris or sludge. This step matters because buildup in the housing can prevent the filter assembly from seating and locking correctly, leaving a gap that recirculates dirty water.

Step 5

Reassemble in the correct order — microfilter plate goes in first against the sump floor, fine mesh filter sits over it, and the coarse mesh filter goes on top — then lower the assembly into the sump and twist it clockwise a quarter turn until it locks. Incorrect stacking order defeats the filtration stages, so if you’re unsure, the coarse mesh is the largest-opening layer and is always the one you can see from above.

Step 6

Bosch recommends cleaning this filter assembly once a month; a clogged filter forces the wash pump to work against restricted flow, accelerating wear on the pump motor and leaving food residue on dishes even when the wash cycle completes normally. Setting a recurring monthly reminder takes under five minutes and directly extends the lifespan of the dishwasher.

Where to Buy Replacement Parts

Find genuine OEM and aftermarket replacement parts for your Bosch SHSM63W55N (300 Series) on Amazon:

• Bosch SHSM63W55N filter assembly 00701754 replacement
• Bosch dishwasher coarse filter fine filter microfilter cleaning
• Bosch dishwasher filter maintenance guide 300 series

When to Call a Professional

If the issue persists after completing all steps above, the problem may involve the sealed refrigerant system, a failed main control board, or wiring that requires specialized diagnostic equipment. Contact a licensed appliance technician — attempting sealed-system repairs without EPA 608 certification is illegal and unsafe.

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How Much Does This Repair Cost?

Replacing or cleaning a clogged soft food filter on a Bosch 300 Series dishwasher typically costs $10–$30 in parts if you do it yourself. A professional service call for this repair usually runs $150–$300 including labor. Tackling this repair yourself can save you well over $100.

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Frequently Asked Questions

How often should I clean the soft food filter on my Bosch SHSM63W55N?

Clean the soft food filter on your Bosch 300 Series dishwasher once a month under normal use. Households that run frequent cycles or wash heavily soiled dishes should check it every two weeks.

What are the signs that the soft food filter is clogged?

Common signs include standing water at the bottom of the tub, dishes coming out dirty, and unusual draining noises during a cycle.

Do I need any special tools to remove the filter?

No special tools are required. The soft food filter on the Bosch SHSM63W55N twists out by hand and can be rinsed clean under warm running water.