Dishwasher Overfilling or Triggering E15? Float 00622036 – Fix Water Level Sensing Fast

If your Bosch dishwasher is overfilling, triggering an E15 flood protection error, or cycling erratically, a worn or stuck float is one of the most common root causes. In most Bosch dishwashers, the float buoy rises with the water level and signals the control board to stop filling. When the float becomes waterlogged, cracked, or stuck, the machine loses its water-level reference — leading to overfill events, flood lockouts, or fill cycles that cut off too early. ⚡ High-wear item in Bosch-built dishwashers with heavy use. Part 00622036 is the genuine OEM replacement float that restores accurate water-level sensing and eliminates overfill faults.

❓ 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 erratic fill behaviour

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 — machine locked out
• Fill cycle stops too early or runs too long
• Float visibly cracked, waterlogged, or stuck in raised position
• Water leaking into base pan, triggering flood sensor
• Dishwasher runs but dishes come out dirty due to low water level

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

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

📦 Part Details

• Part Number: 00622036
• Type: Dishwasher Float Buoy — water-level sensing component, mounts in tub floor float housing
• Replaces: 00622036, 622036
• Brands: Bosch, Siemens, Thermador, Gaggenau

⚙️ Installation

Skill Level: Easy — 10 to 20 minutes. Disconnect power before servicing. Remove the lower rack and locate the float assembly in the front-left corner of the tub floor. Lift the float cap straight up to remove it from the housing stem. Drop the new float onto the stem, confirm it moves freely up and down, and reassemble. Run a short cycle to verify the fill level is correct and E15 does not return.

✓ 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