--- title: "Bosch washer showing E:30 -20 | WasherRepair.center" description: "What E:30 -20 means on Bosch washers, what to check before booking, and when it is not a failure at all." url: "https://washerrepair.center/error-codes/bosch-e30-20/" --- # Bosch washer showing E:30 -20 E:30 -20 is what Bosch calls a critical malfunction on the newer 300 Series. ## What E:30 -20 actually means. E:30 -20 is what Bosch calls a critical malfunction on the newer 300 Series. It can also appear when extra water has been added to the drum or the detergent dose was too high. Bosch washer display What to do when E:30 -20 shows on the washer ### Kind of code Water supply Water arrived too slowly, not at all, or kept coming after it should have stopped. The supply valves on the wall and the screens inside the fill hoses are checked before the inlet valve or the level sensor. ### Usually leads to Water inlet valve repair A washer that will not fill, fills slowly, fills with only cold water or keeps filling, repaired at the inlet valve and its screens. ### Shows up as Washer Overflowing The washer keeps filling past the normal level, and water spills over the tub, out of the door or onto the floor. ### Make Bosch Compact 24-inch front-load washers from the German maker, designed to stack with a matching Bosch dryer. ### Source Bosch WGA12400UC (300 Series) user manual and installation instructions (PDF on the BSH media server) Bosch 300 Series WGA12400UC. ## Before you book, in this order. Each step comes from Bosch's own guidance for E:30 -20 on its washers. Follow it to the end: the last card says whether this is a visit. 01 Turn off the faucet. 02 Wait about 5 minutes while the washer drains, then restart it. 03 Do not pour water into the drum during a cycle, and reduce the detergent dose. 04 Book a visit if the code returns. ### Still there? It usually turns into [water inlet valve repair](https://washerrepair.center/services/water-inlet-valve-repair/). Book with the code and the model number. ### What not to do E:30 -20 is not a request to top up water; adding water by hand is one of its causes. ## What you may notice with it. The washer problems E:30 -20 tends to arrive with. Answer these at the washer before anyone is booked. [All problems](https://washerrepair.center/problems/) Before you call ### [Washer Overflowing](https://washerrepair.center/problems/washer-overflowing/) [All 5 causes, cheapest first](https://washerrepair.center/problems/washer-overflowing/) It also comes with - [**Washer Stops Mid-Cycle**](https://washerrepair.center/problems/washer-stops-mid-cycle/) - [**Washer Error Code**](https://washerrepair.center/problems/washer-error-code/) Water or electrical risk ### Washer Overflowing 5 causes, cheapest first Where E:30 -20 usually leads ## Water inlet valve repair. **Water inlet valve and fill hoses · low.** Book a visit [What the job involves](https://washerrepair.center/services/water-inlet-valve-repair/) ## Bosch washers. Compact 24-inch front-load washers from the German maker, designed to stack with a matching Bosch dryer. [Bosch washer repair](https://washerrepair.center/brands/bosch/) More Bosch codes [E:18](https://washerrepair.center/error-codes/bosch-e18/) [E:00 -23](https://washerrepair.center/error-codes/bosch-e00-23/) [E:93](https://washerrepair.center/error-codes/bosch-e93/) [E:32](https://washerrepair.center/error-codes/bosch-e32/) [E:30 -10](https://washerrepair.center/error-codes/bosch-e30-10/) Water supply on other makes [ASKO E3](https://washerrepair.center/error-codes/asko-e3/) [Electrolux E11](https://washerrepair.center/error-codes/electrolux-e11/) [Fisher & Paykel no tAP](https://washerrepair.center/error-codes/fisher-and-paykel-no-tap/) [GE Profile Confirm H2O Supply is ON](https://washerrepair.center/error-codes/ge-profile-confirm-h2o-supply-is-on/) [GE H2O SUPPLY](https://washerrepair.center/error-codes/ge-h2o-supply/) [Kenmore IE](https://washerrepair.center/error-codes/kenmore-ie/) [LG SIGNATURE IE](https://washerrepair.center/error-codes/lg-signature-ie/) [LG IE](https://washerrepair.center/error-codes/lg-ie/) [All 27 codes of this kind](https://washerrepair.center/error-codes/#family-fill) Bosch builds this ### Front-load washer A horizontal drum behind a sealed glass door, a rubber boot, a locking latch and a pump with a filter you can reach from the front. Bosch builds this ### Stackable washer The washer at the bottom of a stacked pair or a single-frame laundry center, repaired inside the closet or recess it was sized for. Bosch builds this ### Compact washer The 24-inch front-loaders and all-in-one washer-dryers found in apartments, condos and under counters, repaired on their washing side. ## In Bosch's own words > Critical malfunction. [Bosch WGA12400UC (300 Series) user manual and installation instructions (PDF on the BSH media server)](https://media3.bsh-group.com/Documents/9001682710_F.pdf) [Bosch WGA12400UC (300 Series) user manual and installation instructions (PDF on the BSH media server)](https://media3.bsh-group.com/Documents/9001682710_F.pdf) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Bosch 300 Series WGA12400UC. ## Bosch E:30 -20 washer 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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Turn off the faucet. If it comes back, it needs a visit. ### Why does Bosch tell me to turn off the faucet for E:30 -20? The manual treats it as critical and has the washer drain itself, so shutting the supply keeps more water from coming in while it does. ### Can a heavy detergent dose cause E:30 -20 on my Bosch? Yes, Bosch lists too much detergent as one cause. Reduce it on the next load of the same size. --- **[Read on the site: Bosch washer showing E:30 -20 | WasherRepair.center](https://washerrepair.center/error-codes/bosch-e30-20/)** **[Book a visit with WasherRepair.center](https://washerrepair.center/schedule/)**