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BOOK NOWWhat a Bosch Dishwasher E22 Error Code Is Telling You
E22 is Bosch’s way of saying the dishwasher filter is blocked. The filter is the cylinder in the tub floor where food debris collects, and once it packs solid the wash water cannot reach the pump. The machine stops mid-cycle and shows the code. Nothing is broken yet.
Water is what you notice first, in the shallow well under the filter that a technician calls the sump. It can be hot if the cycle just stopped. Standing water in the sump comes with the fault, and the pump is usually fine.
The code reads the same across Bosch dishwashers sold in the US, whether a 300 Series, a 500 Series or an 800 Series. Three steps cover how to fix the E22 error on a Bosch dishwasher, all Bosch’s: clean the filter, seat it, check the pump cover.
Why E22 Keeps Coming Back After You Clean the Filter
The clean was probably fine. The mesh is probably still blocked. When a Bosch dishwasher E22 keeps coming back, the fine mesh screen is the suspect, and cooking fat is why. Knowing how to clear the E22 code will not help until it is gone, so run the three checks in order.
Customers hand me a filter with nothing on it and they are right, it looks clean. That is usually the one that is blocked. The film never shows on the steel.
The Mesh That Looks Clean and Is Not
Cooking fat is what we pull off these screens. It does not rinse off steel like food debris, and it leaves a clear film you cannot see across the wires, so water stops passing before anything looks dirty. Bosch specifies mild soap and a soft brush: read that as mild soap, not a rinse.
The coarse filter, or filter basket, catches what you can see; the fine screen under it catches what you cannot. Our guide to cleaning a Bosch filter covers removal. Broken glass collects in the filter housing, so look before you reach in.
The Ten-Second Test at the Tap
Hold the screen under a running tap and watch the water. If it falls straight through, the mesh is open. If water pools in the mesh, it is blinded. A mesh flow-through test settles it.
Failed it? Scrub with degreasing dish soap and a brush until water runs through, then run a short rinse cycle. In my experience the mesh is the answer far more often than the pump when the code returns after cleaning.
Filter Clear? Then Check the Seating and the Pump Cover
A screen that passes water moves you to Bosch’s second step: seating. Bosch says most filters must be locked in position, and one that is only dropped in lets debris bypass into the sump. Feel for the stop, because a filter locked in position will not spin freely or lift out without a twist.
That leaves pump cover seating, Bosch’s third step. The pump cover under the filter sits over the drain pump, and one never snapped down works loose. Press it, and if it moves, reseat and rerun.
| What you find | What it means | What to do next |
|---|---|---|
| Water pools in the mesh | A grease film blinds it | Degrease and rescrub |
| Water falls straight through | Mesh is open | Check seating next |
| Filter sits loose | Never locked in | Reseat until it locks |
| Pump cover moves | Not seated | Reseat and rerun |
| All three pass, code still on | Restriction is downstream | Service call |
Bosch Dishwasher E22 vs E24 and E15: Telling the Codes Apart
Bosch dishwasher error E22 and E24 point into the same lower assembly, which is why they get mixed up. E15 is a different fault entirely. E22 is a code raised at the filter, E24 at the drain outcome.
- E22
Bosch says the dishwasher filter is blocked. The code is raised at the filter.
- E24
Bosch says the machine is not draining, the drain pump blocked or its cover loose. Raised at the drain outcome.
- E15
Bosch’s leak protection has tripped. Raised at a leak, and a different assembly entirely.
For a neighbouring code, our E24 walkthrough carries the drain side and our E15 guide covers leak protection.
Keeping E22 Off the Display in a Denver Kitchen
Bosch publishes an interval of every few months, a baseline for a machine that has never thrown the code. Once it has come back, test the mesh, not the date.
Denver Water calls its own supply soft to moderately hard, so a hard-water schedule is not the right trigger in a Denver kitchen. What goes in matters more, and a month of roasting sends more fat down the drain than salads. Scrape the plates and the mesh stays open longer. Nothing past the filter is maintenance.
When to Call Wilson and Myers
When the checks run out, the restriction is downstream: a drain hose kink, debris in the pump, or a plumbing-side blockage. None of it is reachable from the tub. Past the filter and the pump cover, the power goes off at the wall or breaker.
Our technicians are insured, and we source parts through national supplier networks and manufacturer contracts. On an E22 Bosch dishwasher, a technician picks up where your checks stopped, across the Denver Metro Area from Lakewood to Littleton.
We handle dishwasher repair on every brand we service, and a Bosch job starts at Bosch dishwasher service. Book online and tell us which checks you ran.
Frequently Asked Questions
What does E22 mean on a Bosch dishwasher?
Bosch states that the dishwasher filter is blocked. Food particles collect there, water stops reaching the pump, and the cycle halts.
Is there a simple Bosch dishwasher E22 fix?
Usually yes. Wash the filter under running water with mild soap and a soft brush, lock it back in, then check that the pump cover beneath it is seated.
Why does E22 keep coming back after I cleaned the filter?
A film of cooking fat blinds the mesh without showing on the steel. It looks clean and passes no water. Rescrub with degreasing soap until water runs through.
How do I clear the E22 code on a Bosch dishwasher?
Hold the Start button until the display changes and a short drain cycle begins, roughly three to five seconds. Labels vary by series, so check your manual. On many units the Bosch dishwasher error code E22 clears itself once a drain completes, because it is a state, not a stored fault.
Is E22 the same as E24 on a Bosch dishwasher?
No. Bosch calls E22 a blocked filter and E24 a failure to drain, with the drain pump blocked or its cover loose.
Can I run my Bosch dishwasher while E22 is showing?
You can start it, and it will stop again. The water has nowhere to go until it clears. Grit left on dishes after a normal cycle is a different symptom.
How often should I clean the filter to keep E22 from returning?
Bosch’s own interval is every few months, a fair baseline. Once the code has returned once, watch whether water still falls through the mesh.
Does E22 mean the drain pump has failed?
Usually not. A Bosch E22 error is raised at the filter, not at the pump. A failed pump announces itself with a hum and no water moving.
