--- title: "Bosch E18: a kinked drain hose on a laundry machine" description: "What E18 means on Bosch E18: a kinked drain hose on a laundry machines, what to check before booking, and when it is not a failure at all." url: "https://applianceinstallation.center/error-codes/bosch-e18/" --- # Bosch E18: a kinked drain hose on a laundry machine Bosch's own fix for this alert is to check whether the drainage hose has been installed without kinks, which puts the cause squarely on how the hose was routed at hookup rather than on the pump. ## What E18 actually means. Bosch's own fix for this alert is to check whether the drainage hose has been installed without kinks, which puts the cause squarely on how the hose was routed at hookup rather than on the pump. A hose folded tight behind the machine, or pinched where it passes through a cabinet opening, produces exactly this alert on an otherwise healthy unit. Bosch appliance display · also shown as F18 What to do when E18 shows on the appliance ### Kind of code Water supply and drain The new appliance is reporting what it gets from the water connections behind it. A no-water or slow-fill message on the first fill usually means the supply valve is still closed or only half open, or the new line kinked when the unit slid back; a drain message means the drain hose is pinched, pushed too deep into the standpipe, or looped higher or lower than the installation instructions allow. Open the valve fully, straighten the hose, set it to the height the manual gives, and run the cycle again. ### Usually leads to Water supply and shutoff connection New supply lines from a working quarter-turn stop to each water appliance, tested under pressure. ### Shows up as Drain Backing Up After an Install: Plug, Loop and Standpipe A drain backing up after an install leaves water standing in a new machine, pushes it into the sink or spills it over the top of the standpipe. ### Make Bosch Bosch installs cover every room: a dish care machine slid under the counter, a compact laundry pair, built-in cold storage, and gas or induction cooking. ### Source Bosch US error codes — washers Confirmed on Bosch's current US error-code page for washers, listed as E18 or F18. ## Before you book, in this order. Each step comes from Bosch's own guidance for E18 on its appliances. Follow it to the end: the last card says whether this is a visit. 01 Pull the machine out enough to see the full run of the drain hose without disconnecting it. 02 Straighten any kink or tight bend, especially where the hose exits the cabinet or turns toward the standpipe. 03 Confirm the hose clip at the drain connection is seated and not pinching the hose. 04 If the hose is already straight and the alert repeats, book a visit rather than force the hose further. ### Still there? It usually turns into [water supply and shutoff connection](https://applianceinstallation.center/services/water-supply-and-shutoff-connection/). Book with the code and the model number. ### What not to do E18 is not the same alert as a blocked drain pump, and Bosch's own instruction does not ask the owner to touch the pump for this code. Straightening the hose is the documented first and only step. ## What you may notice with it. The appliance problems E18 tends to arrive with. Answer these at the appliance before anyone is booked. [All problems](https://applianceinstallation.center/problems/) Before you call ### [Drain Backing Up After an Install: Plug, Loop and Standpipe](https://applianceinstallation.center/problems/drain-backing-up-after-install/) [All 6 causes, cheapest first](https://applianceinstallation.center/problems/drain-backing-up-after-install/) It also comes with - [**Appliance Installation Code on a New Unit: Setup Modes and Hookup Messages**](https://applianceinstallation.center/problems/appliance-installation-code/) Problem ### Drain Backing Up After an Install: Plug, Loop and Standpipe 6 causes, cheapest first Where E18 usually leads ## Water supply and shutoff connection. **New supply line and quarter-turn stop for a refrigerator, ice maker, dish care machine or laundry pair, flushed and tested under pressure · low.** Book a visit [What the job involves](https://applianceinstallation.center/services/water-supply-and-shutoff-connection/) ## Bosch appliances. Bosch installs cover every room: a dish care machine slid under the counter, a compact laundry pair, built-in cold storage, and gas or induction cooking. [Bosch appliance installation](https://applianceinstallation.center/brands/bosch/) More Bosch codes [dE](https://applianceinstallation.center/error-codes/bosch-de/) [E17](https://applianceinstallation.center/error-codes/bosch-e17/) [E32](https://applianceinstallation.center/error-codes/bosch-e32/) Water supply and drain on other makes [ASKO F12](https://applianceinstallation.center/error-codes/asko-f12/) [Cove Error 800115](https://applianceinstallation.center/error-codes/cove-error-800115/) [Dacor 4C](https://applianceinstallation.center/error-codes/dacor-4c/) [DCS Blank display / OFF after power interruption](https://applianceinstallation.center/error-codes/dcs-drain-restriction-power-cutoff/) [Electrolux HO SE](https://applianceinstallation.center/error-codes/electrolux-ho-se-reversed-hoses/) [Fisher & Paykel Water is not getting to the machine](https://applianceinstallation.center/error-codes/fisher-and-paykel-water-not-getting-to-the-machine/) [Frigidaire E1](https://applianceinstallation.center/error-codes/frigidaire-e1/) [Gaggenau E:3200](https://applianceinstallation.center/error-codes/gaggenau-e3200/) [All 38 codes of this kind](https://applianceinstallation.center/error-codes/#family-water) Bosch builds this ### Cold storage Setting a new refrigerator, freezer, wine or beverage unit or ice maker into its opening: measured, connected to water, leveled and started. Bosch builds this ### Cooking appliances Hooking up ranges, cooktops, wall ovens, microwaves and hoods: gas connectors leak-tested, anti-tip brackets fastened, ducts sized and the first light checked. Bosch builds this ### Dish care Fitting a new dishwasher or dish drawer under the counter: supply line, drain loop or air gap, power, mounting brackets and a first test cycle. ## In Bosch's own words > Check whether the drainage hose has been installed without kinks. [Bosch US error codes — washers](https://www.bosch-home.com/us/owner-support/error-codes/washers) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Confirmed on Bosch's current US error-code page for washers, listed as E18 or F18. ## Bosch E18 appliance installation, 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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Pull the machine out enough to see the full run of the drain hose without disconnecting it. If it comes back, it needs a visit. ### Is E18 the same problem as E17 on a Bosch laundry machine? No. E17 is about water coming in; E18 is specifically about the drainage hose being blocked or kinked on the way out. They're documented as separate alerts with separate fixes. ### Where is the drain hose most likely to be kinked on a fresh install? The most common spot is right where the hose exits the cabinet opening or bends toward the standpipe, since that's where it gets folded tight when the machine is pushed back into place. ### Can a kinked drain hose damage the machine if it's left that way? It can back water up and trip this alert repeatedly, and a hose forced into a tight bend can eventually crack, so it's worth straightening promptly rather than working around the alert. --- **[Read on the site: Bosch E18: a kinked drain hose on a laundry machine](https://applianceinstallation.center/error-codes/bosch-e18/)** **[Book a visit with ApplianceInstallation.center](https://applianceinstallation.center/schedule/)**