Bosch Washing Machine Error E33

⚡ Quick Answer: The Bosch washing machine E33 error indicates excessive foam detection, often due to too much detergent or the wrong type of detergent being used. Sym... ✅ DIY Fixable

What Does Error E33 Mean?

The Bosch washing machine E33 error indicates excessive foam detection, often due to too much detergent or the wrong type of detergent being used. Symptoms include an error display during the wash cycle, pausing of cycles due to foam, and visible foam around the detergent drawer or tub. Addressing these issues can often resolve the error.

Common Symptoms:

  • Error displayed during wash cycle
  • Cycle may pause due to excessive foam
  • Foam may be visible around detergent drawer or tub

Possible Causes

  • Excessive detergent use (high)
  • Using wrong type of detergent (non-HE) or inappropriate detergent (medium)
  • Residual detergent buildup in dispenser causing increased foam (medium)

How to Fix Error E33

DIY Fix Reduce foam by adjusting detergent use

  1. Check detergent packaging and machine manual for recommended amount based on load size and water hardness
  2. Use only high-efficiency (HE) detergent formulated for front‑load machines
  3. Reduce the amount of detergent, especially in soft water areas

DIY Fix Clean detergent drawer and run rinse cycle

  1. Remove detergent drawer and rinse under warm water to remove residue
  2. Run an empty rinse‑only cycle to clear excess suds from the tub

Technician Only Inspect water/foam sensors and related components

  1. Check for proper function of sensors that detect foam or water flow
  2. Inspect and clean connections to sensors if buildup is present
  3. Replace faulty sensor components if malfunctioning

Parts needed: foam level/water sensor, wiring/connectors

🛑 When to Call a Pro:
  • If repeated E33 occurs after correct detergent usage and cleaning steps
  • If error is accompanied by other fault codes or machine malfunctions

Technical Specifications

wattage N/A
component Water Level Sensor
resistance 10-30 ohms
part_number Bosch 00619936
voltage_rating 120V AC

Common Questions

What does E33 error mean on Bosch washing machine?

E33 indicates excessive foam detection, often due to too much or incorrect detergent.

Can I fix Bosch washing machine E33 error myself?

Yes, reduce detergent usage, use HE detergent, and clean the detergent drawer.

How much does it cost to fix E33 error?

Estimated repair costs range from $50 to $200 depending on the required repairs.

When should I call a technician for E33?

Call if E33 recurs after correcting detergent use or if other error codes appear.

Sources & References

Data last verified: 2026-01-16

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