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Thermador·Dishwasherhigh severity
Thermador Dishwasher Error Code E15
Water in base / leak-protection triggered
Common Causes
- 1Hose or fitting leak into the base
- 2Door gasket tear
- 3Sump or pump seal weeping
- 4Base float switch stuck up
Standing water in the base sits near live components. Always disconnect power before tilting the machine or reaching into the pan.
Step-by-Step Troubleshooting
- 1
Ease the dishwasher out and tip it forward so the trapped water drains from the anti-flood base pan onto a towel
- 2
Work along every clamp and coupling on the fill and drain hoses, hunting for a bead of moisture that marks the leak
- 3
Run a finger around the full door gasket perimeter for splits, flattened spots, or lodged debris that break the seal
- 4
Check the sump gasket and circulation-pump seal for weeping, then confirm the polystyrene base float has dropped back to its rest position
Pro Diagnostic Tip
Thermador carries the same double-walled AquaStop-style leak hose as its BSH siblings — once its inline shutoff has tripped the hose cannot be reset and must be replaced as a unit. Lay paper toweling under the machine first to pinpoint the exact drip before buying parts.
You Might Also Notice
- •Water pooling on the floor under the unit
- •Program halts partway with a fault
- •Leak-protection indicator active
- •Musty smell from the toe-kick area
Parts, Cost & Difficulty
Repair Difficulty
Moderate — Some Experience NeededEstimated Repair Cost
$120–$420
Parts + labor. Free diagnosis with repair.
Parts That May Need Replacement
Door gasketBase / sump seal kitLeak-protection supply hose
Do You Have the Right Tools?
Bearing puller set ($120), drum spider wrench ($85), multimeter ($85), and diagnostic software. Our technician arrives with $3,000+ in professional tools — your diagnostic is free.
Book a Free Diagnostic VisitOr call for a free consultation (415) 795-7300Available 24/7 — call or text
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What This Repair Involves
Here's what a professional technician does to resolve this issue:
Tilt the unit forward to empty the base pan, then locate the leak source
This repair requires bearing pullers, drum spider wrenches, and diagnostic software for control board calibration. Most homeowners find it safer and more cost-effective to have a licensed technician handle it.
Safety First — Know the Risks
High-voltage components and pressurized water lines create flood and shock risk. A single loose fitting can cause thousands in water damage. Our techs are licensed and insured — let them handle the risk.
Let a Licensed Pro Handle ItOr call for a free consultation (415) 795-7300Available 24/7 — call or text
Licensed & Insured · 90-Day Warranty · Same-Day Service
Get Professional Help Now
Error code E15 is a high-severity issue that can cause further damage to your dishwasher if left unresolved. A licensed technician can diagnose and fix it the same day.
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Frequently Asked Questions
What does Thermador error code E15 mean?
Thermador error code E15 indicates: Water in base / leak-protection triggered. This is a high-severity issue affecting your dishwasher.
How do I fix Thermador error code E15?
Ease the dishwasher out and tip it forward so the trapped water drains from the anti-flood base pan onto a towel Then, Work along every clamp and coupling on the fill and drain hoses, hunting for a bead of moisture that marks the leak Then, Run a finger around the full door gasket perimeter for splits, flattened spots, or lodged debris that break the seal There are 1 more steps — see the full troubleshooting guide above. If these steps don't resolve the error, contact a professional.
How do I know if my dishwasher has error E15?
Besides the error code on the display, common signs include: Water pooling on the floor under the unit; Program halts partway with a fault; Leak-protection indicator active. If you notice any of these symptoms, check your dishwasher's display panel for error code E15.
How much does it cost to fix Thermador E15?
Repair costs for Thermador E15 typically range from $120 to $420 depending on the specific cause and parts needed. EasyBear offers free diagnosis when you proceed with the repair. Call (415) 795-7300 for a same-day appointment.
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