The E15 error on your Siemens Dishwasher means water has leaked into the base tray and triggered the safety float switch. You must tilt the dishwasher to drain the base and identify the leak source.
| Error code | E15 |
|---|---|
| Meaning | Water in base tray - leak protection activated |
| Severity | High — Dishwasher will not operate until resolved |
| Time to fix | 30–90 minutes |
| Tools needed | Towels, torch, screwdriver set, pliers |
What the E15 error means
The E15 error indicates that water has collected in the base pan of your Siemens dishwasher. All modern dishwashers have a safety pan underneath with a polystyrene float switch that triggers when water accumulates from a leak. When this float rises, it activates the drain pump continuously and displays the E15 code to prevent flooding your kitchen. This is a safety feature designed to protect your home from water damage.
Common causes
- Worn or split door seal allowing water to escape during the wash cycle
- Blocked or damaged spray arm holes causing water to spray outside the tub
- Loose or cracked internal hose connections leaking during operation
- Failed pressure chamber or water level sensor leaking
- Damaged salt container seal or overfilled salt chamber
- Cracked sump housing or pump seal allowing water into the base
How to fix the E15 error
- Disconnect power and water supply Switch off the dishwasher at the mains and turn off the water inlet valve. Pull the machine away from the wall to access all sides safely.
- Drain the base tray Carefully tilt the dishwasher backwards at about 45 degrees over towels to drain water from the base pan. You should hear water running out from underneath. Keep tilted for several minutes until no more water drains. The E15 code should clear once the float drops.
- Check the door seal Open the door and inspect the rubber seal around the entire perimeter for cracks, tears or food debris. Clean thoroughly with warm soapy water and check it sits properly in its groove. Replace the seal if damaged.
- Inspect internal components Remove the lower spray arm and filters. Check all visible hoses for splits or loose connections. Examine the salt container cap and ensure it is tightly closed. Look for cracks in the sump area at the base of the tub.
- Test for leaks Reconnect water and power. Run a short rinse cycle while watching for leaks. Check around the door, spray arms, hoses and all connections. If water appears in the base again, you have identified the leak location.
- Replace faulty parts or call an engineer If you have located a damaged seal, hose or component, order the replacement part using your dishwasher model number. For complex internal leaks like pump seals or cracked sumps, contact a qualified Siemens engineer for repair.
FAQ
Can I reset the E15 error without fixing the leak?
No. While tilting the dishwasher will temporarily clear the error by draining the base tray, the E15 will return immediately if the underlying leak is not repaired. You must identify and fix the source of the water leak.
Will my Siemens dishwasher work with water in the base?
No. The E15 error prevents the dishwasher from operating as a safety measure. The machine will continuously run the drain pump and will not start a wash cycle until the base is dry and the float switch resets.
Is the E15 error covered by warranty?
This depends on your warranty terms and the cause of the leak. Manufacturing defects like faulty seals or cracked components are typically covered, but damage from misuse, overfilling detergent or salt, or normal wear and tear may not be. Check your warranty documentation or contact Siemens directly.
