Bosch Washing Machine Error E27

⚡ Quick Answer: The Bosch washing machine error code E27 indicates a malfunction in the pressure sensor responsible for detecting water level. Symptoms include the ma... ✅ DIY Fixable

What Does Error E27 Mean?

The Bosch washing machine error code E27 indicates a malfunction in the pressure sensor responsible for detecting water level. Symptoms include the machine stopping mid-cycle during filling, an unresponsive display, and inability to detect the correct water level. This error may arise from a faulty pressure sensor or a clogged inlet filter affecting water flow.

Common Symptoms:

  • Washing machine stops mid-cycle when trying to fill
  • Display shows E27 or F27
  • Machine cannot detect correct water level

Possible Causes

  • Faulty pressure sensor (water level/pressure switch) (high)
  • Clogged or obstructed water inlet filter or low water flow affecting pressure sensing (medium)

How to Fix Error E27

DIY Fix Check water supply and inlet filter

  1. Turn off the washing machine and disconnect from power.
  2. Ensure that the water supply valves are fully open.
  3. Check and clean the inlet filter screens on the water supply hoses to remove debris.
  4. Reconnect power and run a short cycle to see if the error clears.

Technician Only Inspect and replace pressure sensor

  1. Disconnect the machine from power and water supply.
  2. Remove the top or control panel to access the pressure sensor.
  3. Test the pressure switch and associated hose for blockages or damage with appropriate tools (e.g., multimeter).
  4. Replace the pressure sensor if defective.
  5. Reassemble and test the machine for proper operation.

Parts needed: Pressure sensor / pressure switch, Pressure sensor hose

🛑 When to Call a Pro:
  • If after cleaning inlet filters and checking water supply the error persists.
  • If you are not comfortable accessing the internal components safely.
  • If replacing the pressure sensor does not resolve the error.

Technical Specifications

wattage N/A
component Water Level Sensor
resistance 5-10 ohms
part_number Bosch 00619923
voltage_rating 120V AC

Common Questions

What does E27 error mean on Bosch washing machine?

E27 indicates a fault with the pressure sensor, causing the machine to stop mid-cycle and show an unresponsive display.

Can I fix Bosch washing machine E27 error myself?

Yes, you can check the water supply and clean the inlet filters. Make sure to turn off the machine and disconnect it from power first.

How much does it cost to fix E27 error?

The estimated cost to fix the E27 error ranges from €50 to €150, depending on the region and whether you need to replace the sensor.

When should I call a technician for E27?

Call a technician if the error persists after cleaning the filters or if you're uncomfortable accessing internal components.

Sources & References

Data last verified: 2026-01-16

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