Bosch Dishwasher Error Codes

🚿 Water and Drain Codes — The Ones You Actually See

Code meanings from Bosch owner support. Medians published only where at least ten completed repairs support the figure: E15 rests on 22 jobs, E24 on 13. For the rest we publish the meaning and the likely part, not a number we cannot stand behind.

E15 — Water in the Base, $301

The most common Bosch code we are called out for, and the one people most often misread. E15 does not mean the dishwasher is broken beyond use. It means a float switch in the base pan has been lifted by water that should not be there, and the machine has shut off its own water supply to stop a flood. That is the Aquastop system doing its job.

Across 22 completed E15 repairs the median invoice was $301, with the middle half between $266 and $390. The spread comes from where the water originated: a loose hose clamp or a worn door seal sits at the bottom of that range, a cracked sump or a failed pump housing at the top.

E24 and E25 — It Will Not Drain, $270

E24 is Bosch telling you the drain path is blocked, most often at the filter. E25 is the same complaint one step further along: the pump itself is blocked, or its cover has come loose. Both produce standing water in the tub.

At a median of $270 across 13 completed jobs, E24 is the cheapest coded fault we handle on a Bosch. The reason is that half the work is clearing rather than replacing.

E22 — Blocked Filter, Usually Free

Bosch’s own remedy for E22 is to clean the filter under running water. If that clears it, there is nothing to pay anyone for. We list it here precisely because it is the one code on this page that most often needs no visit at all.

If E22 comes back within a few cycles after a proper clean, the blockage is further down the line and the machine is worth looking at.

⚡ Electronics and Control Codes

These point at the control board or a circuit on it. Bosch’s standard first step for most of them is a power reset: cut power at the breaker for 30 seconds, restore it, and see whether the code clears.

Meanings from Bosch owner support. A control board replacement on a dishwasher runs a median of $369 across 57 completed jobs in our records, all brands.

E27 deserves a note, because it is the one code on this page that is not a dishwasher fault at all. Bosch is reporting that incoming voltage is too low. If a technician replaces parts on an E27 without checking the supply, the code comes straight back. That is an electrician’s call, not ours.

🧪 Scale, Heat and Drying Codes

Meanings from Bosch owner support.

E12 is worth understanding rather than just clearing. Bosch’s remedy is descaling, and their own advice is to use softening salt afterwards to stop it returning. Across the areas we serve, hard water is the norm rather than the exception, and scale that reaches the heat pump has usually also been working on the heating element and the spray jets. If E12 appears, the machine is telling you about your water, not just about itself.

The Zeolite codes, E07 and E10, only exist on Crystal Dry models. Zeolite is a mineral that releases heat when it absorbs moisture, which is how those models dry without an exposed heating element. When people say a Bosch dishwasher leaves dishes wet, on a Crystal Dry unit these are the codes to look for.

📈 Which Codes We Actually Get Called For

Manufacturer documentation lists every code a machine can produce. Service records show which ones people actually call about, and the two lists are not the same. Counting mentions across our dishwasher jobs, the ranking is lopsided:

Count of jobs where the code appeared in the service description. Not every one ended in a repair — some cleared with a filter clean.

Four of the top six are water and drain codes. That matches what the machine is: a sealed box that fills, circulates and empties several times per cycle, with a filter at the bottom catching everything the plates carried in. The electronics codes exist and do fail, but the drain path is where the wear happens.

What to Do When a Code Appears, in Order

🧾 What a Bosch Dishwasher Repair Costs

Codes aside, here is the whole picture. Across 195 completed Bosch dishwasher repairs the median invoice is $315 — parts, labor and the service call together. That makes Bosch one of the cheaper brands we service.

Median full invoice by brand across completed dishwasher repairs where a part was installed.

By part, the repairs behind these codes run: drain pump $335 across 99 jobs, wash pump $367 across 118, control board $369 across 57, door seal $292 across 29. The full breakdown is on our dishwasher repair cost page, and the brand comparison across every appliance is here: appliance repair cost by brand.

📊 Where These Numbers Come From

Two different sources, kept separate on purpose:

The wider dataset across all nine appliance types and 65,924 completed jobs: appliance repair cost.