--- title: "Bosch dishwasher showing E27 | DishwasherRepair.center" description: "What E27 means on Bosch dishwashers, what to check before booking, and when it is not a failure at all." url: "https://dishwasherrepair.center/error-codes/bosch-e27/" --- # Bosch dishwasher showing E27 E27 means the electricity reaching the dishwasher is too low. ## What E27 actually means. E27 means the electricity reaching the dishwasher is too low. The warning concerns the house supply, not a part inside the machine. Bosch dishwasher display What to do when E27 shows on the dishwasher ### Kind of code Mode, not a failure A setting someone turned on, or a reminder the machine shows on purpose — a control lock, a demo mode, a rinse-aid prompt. Nothing is broken and no part is needed. ### Usually leads to No repair Switch the dishwasher off at the breaker for 30 seconds and switch it back on. ### Shows up as Dishwasher Not Starting The door is shut and a cycle is chosen, but nothing happens, or the lights come on and it will not run. ### Make Bosch Quiet 24-inch built-in dishwashers that are among the most common in American kitchens. ### Source Bosch US owner support: Dishwasher Error Codes Two-digit display models from Bosch; on the four-digit controls the same warning is E9001. ## Before you book, in this order. Each step comes from Bosch's own guidance for E27 on its dishwashers. Follow it to the end: the last card says whether this is a visit. 01 Switch the dishwasher off at the breaker for 30 seconds and switch it back on. 02 If E27 returns, have an electrician measure the voltage on the dishwasher's circuit. 03 Book a visit only if the electrician finds the supply normal and the code persists. ### Cleared? No part needed replacing. If the next full cycle still stops partway or leaves water in the tub, treat that as a new problem. ### What not to do Replacing the control board will not fix E27 when the voltage really is low. ## What you may notice with it. The dishwasher problems E27 tends to arrive with. Answer these at the dishwasher before anyone is booked. [All problems](https://dishwasherrepair.center/problems/) Before you call ### [Dishwasher Not Starting](https://dishwasherrepair.center/problems/dishwasher-not-starting/) [All 5 causes, cheapest first](https://dishwasherrepair.center/problems/dishwasher-not-starting/) It also comes with - [**Dishwasher Showing an Error Code**](https://dishwasherrepair.center/problems/dishwasher-error-code/) Problem ### Dishwasher Not Starting 5 causes, cheapest first No repair indicated ## Nothing to repair. A setting someone turned on, or a reminder the machine shows on purpose — a control lock, a demo mode, a rinse-aid prompt. Nothing is broken and no part is needed. [How to read what your dishwasher is telling you](https://dishwasherrepair.center/problems/dishwasher-error-code/) ## Read these before the visit. Short guides that make the call quicker and the diagnosis cheaper. [All guides](https://dishwasherrepair.center/guides/) Checks you can make yourself ### Find your dishwasher's model number Error codes ### All 188 codes, by make ## Bosch dishwashers. Quiet 24-inch built-in dishwashers that are among the most common in American kitchens. [Bosch dishwasher repair](https://dishwasherrepair.center/brands/bosch/) More Bosch codes [E15](https://dishwasherrepair.center/error-codes/bosch-e15/) [E24](https://dishwasherrepair.center/error-codes/bosch-e24/) [E25](https://dishwasherrepair.center/error-codes/bosch-e25/) [E22](https://dishwasherrepair.center/error-codes/bosch-e22/) [E23](https://dishwasherrepair.center/error-codes/bosch-e23/) [E16](https://dishwasherrepair.center/error-codes/bosch-e16/) [E18](https://dishwasherrepair.center/error-codes/bosch-e18/) [E14](https://dishwasherrepair.center/error-codes/bosch-e14/) [E09](https://dishwasherrepair.center/error-codes/bosch-e09/) Mode, not a failure on other makes [Cove 980199](https://dishwasherrepair.center/error-codes/cove-980199/) [Electrolux CL](https://dishwasherrepair.center/error-codes/electrolux-cl/) [Frigidaire CL](https://dishwasherrepair.center/error-codes/frigidaire-cl/) [Gaggenau E:9001](https://dishwasherrepair.center/error-codes/gaggenau-e9001/) [LG CL](https://dishwasherrepair.center/error-codes/lg-cl/) [Thermador E27](https://dishwasherrepair.center/error-codes/thermador-e27/) [ZLINE E9](https://dishwasherrepair.center/error-codes/zline-e9/) [All 16 codes of this kind](https://dishwasherrepair.center/error-codes/#family-mode) Bosch builds this ### Built-in dishwasher The standard 24-inch machine under the counter, and the one nearly every American kitchen has. Bosch builds this ### Panel-ready dishwasher Hidden behind a cabinet door, controlled from the top edge, and repaired with the panel's weight in mind. Bosch builds this ### Compact dishwasher The 18-inch and ADA-height machines for small kitchens, where the tight tub changes both loading and repairs. ## In Bosch's own words > The house power supply to the unit is too low. [Bosch US owner support: Dishwasher Error Codes](https://www.bosch-home.com/us/owner-support/error-codes/dishwashers) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Two-digit display models from Bosch; on the four-digit controls the same warning is E9001. ## Bosch E27 dishwasher repair, where we come out. The same visit in every metro below: the code, the model number, and a diagnosis before any part is ordered. 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Switch the dishwasher off at the breaker for 30 seconds and switch it back on. ### Is my Bosch broken when it shows E27? E27 reports that the house power supply to the unit is too low, not that a part inside has failed. A breaker reset is the first step, then an electrician if the code returns. ### Should the control board be replaced for Bosch E27? Not when the voltage really is low, because a new board will not change the supply. Have the circuit measured first. --- **[Read on the site: Bosch dishwasher showing E27 | DishwasherRepair.center](https://dishwasherrepair.center/error-codes/bosch-e27/)** **[Book a visit with DishwasherRepair.center](https://dishwasherrepair.center/schedule/)**