Dishwasher Overfilling or Showing E15? Float Assembly 00751391 – Fix Flood Protection Fast

If your Bosch dishwasher is overfilling, triggering an E15 flood error, or refusing to start a wash cycle, the float assembly is the most common cause. In most Bosch dishwashers, this is caused by a failed float housing assembly with microswitch. When it fails, the control board loses its water-level signal — triggering flood protection lockout, overfill events, or a machine that won't fill at all. ⚡ Common failure point in Bosch-built dishwashers. Part 00751391 is the genuine OEM replacement that restores accurate water-level sensing and clears flood protection faults immediately.

❓ Is This the Right Part?

This is the correct fix if ALL of the following are true:

• ✔ Dishwasher powers on and control panel responds normally
• ✔ Drain pump and spray arms function correctly
• ✔ Water supply confirmed — shutoff valve open, inlet hose clear
• ✔ ONLY problem is overfilling, E15 error, or float switch not clicking when lifted

Not sure? Send us your model number — we'll confirm before you order.

🔧 Common Symptoms

• Dishwasher overfilling with water during wash cycle
• E15 flood protection error code displayed — machine locked out
• Dishwasher won't start or fill cycle stops prematurely
• Water leaking into base pan, triggering flood sensor
• Float stuck in raised position — microswitch not releasing
• No audible click from float switch when float is lifted manually

✔ If these symptoms match, this is the most likely failed component in the system.

✔ In most cases, replacing this float assembly restores normal operation immediately.

📦 Part Details

• Part Number: 00751391
• Type: Float Housing Assembly with Integrated Microswitch — complete assembly, no soldering required
• Replaces: 00751391, 751391
• Brands: Bosch, Siemens, Thermador, Gaggenau

⚙️ Installation

Skill Level: Easy — 20 to 35 minutes. Disconnect power before servicing. Remove the lower rack, unscrew the lower spray arm, and lift out the filter basket to access the float assembly in the front-left corner of the tub floor. Disconnect the wiring harness, unclip the old float housing, and snap in the new assembly. Reconnect the harness, reassemble, and run a short cycle to confirm the E15 clears.

✓ Compatible Models

Confirmed compatible with SHE3AR72UC, SHE55M15UC, SHE65T55UC, SHX5ER55UC, SHPM88Z75N, DWHD650WFP, SN26T592GB, DF211161 plus additional Bosch, Siemens, Thermador, and Gaggenau models. Contact us to verify your model number before ordering.

💡 Pro Tip