Bosch WAT28400UC 2.8 cu ft Compact Front Load Washer Er:08 Error Fix: Overfill — Water Level Too High

Error code Er:08 on the Bosch WAT28400UC 2.8 cu ft Compact Front Load Washer means: Overfill — Water Level Too High. The water level in the tub has exceeded the maximum safe level. The drain pump will activate to remove excess water. Check the water inlet valve for a stuck-open condition — test by shutting off the water supply; if water stops entering, the valve is leaking and must be replaced. Check the pressure sensor and its air hose for clogs or disconnection. The pressure sensor determines the water level.

The most successful fix is "Test and Replace Water Inlet Valve or Pressure Sensor" (medium difficulty, ~45 minutes). Estimated DIY cost: $20-$40. HomeMD has 2 community-ranked fixes for this error.

This error is rated critical severity. It is generally not urgent and can often be resolved with a simple DIY fix.

Yes — the top-ranked community fix ("Test and Replace Water Inlet Valve or Pressure Sensor") is rated medium difficulty and takes about 45 minutes. Tools needed: T20 Torx screwdriver, Multimeter, Adjustable wrench.

DIY cost: $20-$40. Professional repair typically costs $140-$200. Many homeowners save money by trying the top-ranked community fix first.

The Bosch WAT28400UC 2.8 cu ft Compact Front Load Washer has 8 other known error codes, including: Er:01 (Door Lock Fault), Er:02 (Water Not Draining), Er:05 (Water Fill Timeout), Er:07 (Heating System Fault), Er:10 (Motor / Drive Fault), and 3 more.

Error code Er:08 also appears on 3 other Bosch models: WAT28401UC 2.2 cu ft 300 Series Compact Washer, WAW285H1UC 2.2 cu ft 800 Series Compact Washer, WAW285H2UC 2.7 cu ft Compact Front Load Washer with EcoSilence Motor. The fix may vary by model, so check each model's specific page for tailored repair steps.