---
title: "Dishwasher leak repair"
description: "Bosch dishwasher leak repair — water where it should not be, and a machine that has locked itself out over it."
url: "https://boschmiami.support/services/dishwasher-leak-repair/"
date_modified: "2026-08-18"
Appliance type: "Dishwashers"
---


# Bosch dishwasher leak repair

### The lockout is the feature, not the failure

There is a float and a sensor in the base pan of these dishwashers. When water reaches it, the machine shuts down, drains what it can and refuses to start again. In an apartment above somebody else’s ceiling that is worth a great deal — the alternative is a slow leak nobody notices for a month.

It also means the code is not the problem. Something upstream is leaking, and until that is fixed and the pan is dry the machine will keep doing exactly this.

### Where the water actually comes from

- The door seal, which hardens and stops sealing at the corners first
- The sump and its gasket, and occasionally a cracked sump
- Hose connections, particularly after a machine has been pulled out and pushed back
- The inlet valve, which weeps rather than pours
- The heat pump housing on the machines that have one

### The thing people do that we would rather they did not

Tipping the machine backwards drains the pan and clears the lockout, and the internet is full of people recommending it. It works, in the sense that the machine runs again. Nothing has been repaired, and the next time the pan fills you may be away for the weekend.

What this involves

Base pan sensor and the lockout

Door seal, sump and hose connections

Dried out and re-tested before sign-off

The water goes off first

Before anything else, at the valve under the sink. A machine that has found water in its base is telling you to stop feeding it.

Where it is coming from

Door seal, sump, hose connections, the heat pump housing and the inlet valve — checked in that order, because that is roughly how often each one is the answer.

The base has to dry

The sensor sits in the pan and will keep the machine locked out while there is water around it. Drying the pan is part of the repair rather than an afterthought.

Run and watched

A full cycle with the machine pulled forward far enough to see underneath it. A leak signed off without watching a cycle is a leak that comes back.

The lockout is the feature, not the failure

There is a float and a sensor in the base pan of these dishwashers. When water reaches it, the machine shuts down, drains what it can and refuses to start again. In an apartment above somebody else’s ceiling that is worth a great deal — the alternative is a slow leak nobody notices for a month.

It also means the code is not the problem. Something upstream is leaking, and until that is fixed and the pan is dry the machine will keep doing exactly this.

Where the water actually comes from

The door seal, which hardens and stops sealing at the corners first

The sump and its gasket, and occasionally a cracked sump

Hose connections, particularly after a machine has been pulled out and pushed back

The inlet valve, which weeps rather than pours

The heat pump housing on the machines that have one

The thing people do that we would rather they did not

Tipping the machine backwards drains the pan and clears the lockout, and the internet is full of people recommending it. It works, in the sense that the machine runs again. Nothing has been repaired, and the next time the pan fills you may be away for the weekend.

---

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