If your Bosch washing machine shows the E15 error code, it means the washer has detected water in the base of the machine and has activated the leak protection system. This is commonly referred to as the AquaStop safety feature.
The washer will usually stop running to prevent further water damage.
What Does Bosch Washing Machine Error Code E15 Mean?
The E15 error code indicates that leak protection has been triggered. Water has collected in the bottom tray of the washer, causing a float switch to activate and shut down normal operation.
This can occur even if the leak is small or intermittent.
Common Causes of Bosch E15 Error Code
- Small internal water leak
- Loose or damaged hose connections
- Excess detergent causing oversudsing and leaks
- Clogged drain system leading to overflow
- Faulty or misaligned float switch
How to Fix Bosch Washing Machine Error Code E15
Step 1: Turn Off Power and Water
- Switch off the washer
- Unplug it from the power outlet
- Turn off the water supply
Step 2: Drain Water from the Base
- Carefully tilt the washer slightly backward
- Allow any trapped water to drain from the bottom
- Use towels to absorb excess moisture
Tip: This may temporarily clear the error, but you should still check for leaks.
Step 3: Check for Visible Leaks
Inspect:
- Inlet and drain hoses
- Door seal (gasket)
- Detergent drawer area
- Pump filter and housing
Tighten loose connections and clean any visible residue.
Step 4: Reduce Detergent Usage
Excess detergent can cause foaming and internal leaks. Use only HE detergent and reduce the amount if needed.
Step 5: Allow the Washer to Dry
Leave the washer unplugged for several hours to allow internal components and the base tray to dry completely.
Can You Keep Using the Washer With an E15 Error?
No. Running the washer with the AquaStop system activated can:
- Cause repeated shutdowns
- Risk further water damage
- Lead to electrical safety issues
Resolve the leak before continued use.
How to Prevent Bosch E15 Error Code in the Future
- Use the correct detergent type and amount
- Clean the pump filter regularly
- Check hoses and seals periodically
- Avoid overfilling the detergent drawer
When to Call a Technician
Call a professional if:
- The error returns after drying the base
- You cannot locate the source of the leak
- The washer leaks during every cycle
Persistent E15 errors often indicate an internal leak that requires repair.
More Bosch appliance error code guides
If you’re troubleshooting other Bosch appliances, these guides may also help: