--- title: "Dishwasher will not start" description: "Thermador dishwasher will not start — a machine with lights on that will not run, or one that shows nothing at all." url: "https://thermadormiami.support/symptoms/dishwasher-wont-start/" date_modified: "2026-08-18" Appliance type: "Dishwashers" --- # Dishwasher will not start Symptom # Thermador dishwasher will not start A machine with lights on that will not run, or one that shows nothing at all. On this platform a machine that refuses to start is usually protecting itself, and the code says which protection. - **From $95** diagnostic, credited to the repair - **59** cities and neighborhoods covered - **OEM** parts available on order - **In writing** the price, before anything is opened ## Book a diagnostic visit Your model number and a line about what it is doing is enough to get started. Your details stay private. No spam, ever. Five ordinary causes ## What this usually turns out to be Cheapest and commonest first, which is also the order we check them in. They sit hundreds of dollars apart, and only the unit settles which one is yours. - The anti-flood lockout Water in the base pan stops the machine before it starts. It is the commonest reason one of these will not run and it is a protection rather than a failure. [ Dishwasher leak repair from $175 ](https://thermadormiami.support/services/dishwasher-leak-repair/) ### The anti-flood lockout Water in the base pan stops the machine before it starts. It is the commonest reason one of these will not run and it is a protection rather than a failure. - The door not latching A panelled door that has settled, or a latch that no longer closes squarely. The machine will not start with a door it cannot confirm is shut, and there is a published condition for the sensor. [ Door seal and hinge repair from $165 ](https://thermadormiami.support/services/door-seal-and-hinge-repair/) ### The door not latching A panelled door that has settled, or a latch that no longer closes squarely. The machine will not start with a door it cannot confirm is shut, and there is a published condition for the sensor. - No water arriving A closed shut-off valve, a kinked line or low pressure. The machine starts, waits, and stops with a supply code rather than running dry. [ Dishwasher drain repair from $155 ](https://thermadormiami.support/services/dishwasher-drain-repair/) ### No water arriving A closed shut-off valve, a kinked line or low pressure. The machine starts, waits, and stops with a supply code rather than running dry. - Low supply voltage Published as its own condition. Not a problem in the machine, and replacing parts will not change it. ### Low supply voltage Published as its own condition. Not a problem in the machine, and replacing parts will not change it. - Power, or the board A dead panel is the outlet, the breaker or the cabinet switch far more often than it is electronics — and those are free to check. [ Control board replacement from $340 ](https://thermadormiami.support/services/control-board-replacement/) ### Power, or the board A dead panel is the outlet, the breaker or the cabinet switch far more often than it is electronics — and those are free to check. In five minutes ## Before you call anybody None of it needs tools, and all of it makes the visit shorter. - 01 Is the panel alive at all? Lights or no lights. That one observation decides whether you are looking at a protection or at power, and they have nothing in common. ### Is the panel alive at all? Lights or no lights. That one observation decides whether you are looking at a protection or at power, and they have nothing in common. - 02 Push the door properly shut Firmly, at the handle. A panelled door that has dropped needs more of a push than it used to, and that is the tell. ### Push the door properly shut Firmly, at the handle. A panelled door that has dropped needs more of a push than it used to, and that is the tell. - 03 Check the shut-off valve and the breaker Both take a minute. The switch in the cabinet under the sink catches people out more often than anything electronic in the machine. ### Check the shut-off valve and the breaker Both take a minute. The switch in the cabinet under the sink catches people out more often than anything electronic in the machine. - 04 Five minutes genuinely off at the breaker Not standby. It clears a real share of these, and a code that survives it is a code that means something. ### Five minutes genuinely off at the breaker Not standby. It clears a real share of these, and a code that survives it is a code that means something. How it shows up ## What people describe when they call - “Lights on, nothing happens” - “A code showing before the cycle begins” - “Dead panel, no lights at all” Two shortcuts ## Narrow it down before anybody arrives A description of the behaviour leaves a few possible causes. A code names the subsystem, and the model number says which parts to bring. Either one shortens the visit; both together usually settle it. If the display is showing something - [ E8000 Door sensor ](https://thermadormiami.support/error-codes/error-code-e8000-dishwasher/) - [ E27 Supply voltage low ](https://thermadormiami.support/error-codes/error-code-e27-dishwasher/) - [ E16 No water arriving ](https://thermadormiami.support/error-codes/error-code-e16-dishwasher/) - [ E18 Water level too low ](https://thermadormiami.support/error-codes/error-code-e18-dishwasher/) - [ E15 Water in the base ](https://thermadormiami.support/error-codes/error-code-e15-dishwasher/) Photograph it before it clears — codes do not wait. [ Search the full code list ](https://thermadormiami.support/error-codes/) If there is no code at all The data plate is inside the cabinet, upper left wall or behind the grille. [ All models ](https://thermadormiami.support/models/) In more detail ## About Thermador dishwasher will not start ### The fastest diagnosis is the code Note whether the panel is alive. Lights on and no cycle is a protection or a door switch, and the code names which. A completely dead panel is supply — the breaker, the outlet under the sink, or the switch somebody fitted in the cabinet years ago. ### A machine that refuses to start is usually right Water in the base pan, a door it cannot confirm is closed, no supply, or voltage below what it will run on: each of those stops the machine on purpose, and each is published as its own condition. Reading the code is the whole diagnosis, and on most of these the answer is something in the kitchen rather than something inside the appliance. ### The one that is not the appliance at all Low supply voltage. In a building fed 208V from a three-phase supply, equipment expecting 240V says so and stops. That is an electrician’s call and no part in the dishwasher will change it — which is worth knowing before anyone quotes you for a board. This article is based on: - Official manufacturer documentation - Internal repair procedures - Technician repair history - Company quality standards Before you book ## Questions about thermador dishwasher will not start Almost always a protection or the door. Look for a code first — this platform tells you which one — and try pushing the door firmly closed before anything else. Then it is power. Breaker, the outlet under the sink, and the switch in the cabinet that half of these are wired through. Electronics come after all three, not before. Then something was protecting itself and cleared. Worth noting what it showed before you cut the power, because it will come back if the cause is still there. Where we do it ## Across Miami-Dade, Broward, and Palm Beach Same terms everywhere we go: an on-site diagnostic first, the price agreed in writing, and the exact figure confirmed once we have seen the unit. ### [ Miami-Dade ](https://thermadormiami.support/service-area/miami-dade/) - [Aventura](https://thermadormiami.support/service-area/miami-dade/aventura/) - [Bal Harbour](https://thermadormiami.support/service-area/miami-dade/bal-harbour/) - [Bay Harbor Islands](https://thermadormiami.support/service-area/miami-dade/bay-harbor-islands/) - [Biscayne Park](https://thermadormiami.support/service-area/miami-dade/biscayne-park/) - [Coral Gables](https://thermadormiami.support/service-area/miami-dade/coral-gables/) - [Doral](https://thermadormiami.support/service-area/miami-dade/doral/) - [ 15 more places ](https://thermadormiami.support/service-area/miami-dade/) ### [ Broward ](https://thermadormiami.support/service-area/broward/) - [Cooper City](https://thermadormiami.support/service-area/broward/cooper-city/) - [Coral Springs](https://thermadormiami.support/service-area/broward/coral-springs/) - [Fort Lauderdale](https://thermadormiami.support/service-area/broward/fort-lauderdale/) - [Hallandale Beach](https://thermadormiami.support/service-area/broward/hallandale-beach/) - [Hillsboro Beach](https://thermadormiami.support/service-area/broward/hillsboro-beach/) - [Hollywood](https://thermadormiami.support/service-area/broward/hollywood/) - [ 5 more places ](https://thermadormiami.support/service-area/broward/) ### [ Palm Beach ](https://thermadormiami.support/service-area/palm-beach/) - [Boca Raton](https://thermadormiami.support/service-area/palm-beach/boca-raton/) - [Delray Beach](https://thermadormiami.support/service-area/palm-beach/delray-beach/) - [Highland Beach](https://thermadormiami.support/service-area/palm-beach/highland-beach/) - [Jupiter](https://thermadormiami.support/service-area/palm-beach/jupiter/) - [Palm Beach Gardens](https://thermadormiami.support/service-area/palm-beach/palm-beach-gardens/) - [ 2 more places ](https://thermadormiami.support/service-area/palm-beach/) Neighborhoods people ask for by name - [Brickell](https://thermadormiami.support/service-area/miami-dade/miami/brickell/) - [Coconut Grove](https://thermadormiami.support/service-area/miami-dade/miami/coconut-grove/) - [Cocoplum](https://thermadormiami.support/service-area/miami-dade/coral-gables/cocoplum/) - [Design District](https://thermadormiami.support/service-area/miami-dade/miami/design-district/) - [Gables Estates](https://thermadormiami.support/service-area/miami-dade/coral-gables/gables-estates/) - [Old Cutler](https://thermadormiami.support/service-area/miami-dade/old-cutler/) - [South of Fifth (SoFi)](https://thermadormiami.support/service-area/miami-dade/miami-beach/south-of-fifth/) - [Star Island](https://thermadormiami.support/service-area/miami-dade/miami-beach/star-island/) - [Coral Ridge](https://thermadormiami.support/service-area/broward/fort-lauderdale/coral-ridge/) - [Harbor Beach](https://thermadormiami.support/service-area/broward/fort-lauderdale/harbor-beach/) - [Harbor Islands](https://thermadormiami.support/service-area/broward/hollywood/harbor-islands/) - [Las Olas](https://thermadormiami.support/service-area/broward/fort-lauderdale/las-olas/) - [Rio Vista](https://thermadormiami.support/service-area/broward/fort-lauderdale/rio-vista/) - [Seven Isles](https://thermadormiami.support/service-area/broward/fort-lauderdale/seven-isles/) - [The Landings](https://thermadormiami.support/service-area/broward/fort-lauderdale/the-landings/) - [Admirals Cove](https://thermadormiami.support/service-area/palm-beach/jupiter/admirals-cove/) - [BallenIsles](https://thermadormiami.support/service-area/palm-beach/palm-beach-gardens/ballenisles/) - [Mirasol](https://thermadormiami.support/service-area/palm-beach/palm-beach-gardens/mirasol/) - [Royal Palm Yacht & Country Club](https://thermadormiami.support/service-area/palm-beach/boca-raton/royal-palm-yacht-and-country-club/) ## Tell us the model number and what it is doing. --- **[Read full article: Dishwasher will not start](https://thermadormiami.support/symptoms/dishwasher-wont-start/)**