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Bosch·Dishwasherhigh severity
Bosch Error Code E09
Heating element error
Common Causes
- 1Heating element burned out
- 2Element connection failure
- 3Control board issue
Flow-through heater operates at 120V under water immersion. Ensure power is fully disconnected and capacitors discharged before testing.
Step-by-Step Troubleshooting
- 1
Disconnect power and access the sump area under the tub
- 2
Measure heater resistance through connector (expect 10-20 ohms at terminals)
- 3
Check for ground fault — measure between each terminal and chassis (should be open)
- 4
Inspect element for visible cracks or discoloration
- 5
If resistance is correct, test control board heater relay output
Pro Diagnostic Tip
Bosch uses a flow-through heater, not a basin element. Water must be flowing for it to operate — a stuck circulation pump will trigger E09 as a secondary fault. Always verify pump operation first.
You Might Also Notice
- •Cold water throughout cycle
- •Dishes greasy after wash
- •Sanitize light not illuminating
Parts, Cost & Difficulty
Repair Difficulty
Hard — Advanced Skills RequiredEstimated Repair Cost
$250–$400
Parts + labor. Free diagnosis with repair.
Parts That May Need Replacement
12-014-872-001 (flow-through heater)12-005-668-001 (control board, if relay failed)
Do You Have the Right Tools?
Bearing puller set ($120), drum spider wrench ($85), multimeter ($85), and diagnostic software. Our technician arrives with $15K+ in professional tools — your diagnostic is free.
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Error code E09 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 Bosch error code E09 mean?
Bosch error code E09 indicates: Heating element error. This is a high-severity issue affecting your dishwasher.
How do I fix Bosch error code E09?
Disconnect power and access the sump area under the tub Then, Measure heater resistance through connector (expect 10-20 ohms at terminals) Then, Check for ground fault — measure between each terminal and chassis (should be open) There are 2 more steps — see the full troubleshooting guide above. This repair typically requires professional tools and expertise.
How do I know if my dishwasher has error E09?
Besides the error code on the display, common signs include: Cold water throughout cycle; Dishes greasy after wash; Sanitize light not illuminating. If you notice any of these symptoms, check your dishwasher's display panel for error code E09.
How much does it cost to fix Bosch E09?
Repair costs for Bosch E09 typically range from $250 to $400 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.