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Bosch·Washermedium severity
Bosch Error Code E27
Door lock error
Common Causes
- 1Door lock mechanism failure
- 2Lock actuator issue
- 3Wiring fault
Step-by-Step Troubleshooting
- 1
Ensure door is fully closed — push firmly until it clicks
- 2
Inspect door strike for alignment — bent strike prevents proper engagement
- 3
Test door lock assembly continuity (3 terminals: lock/unlock/detect)
- 4
Check wiring harness at hinge — flex damage is common on door wires
Pro Diagnostic Tip
Bosch door locks have a bimetal element that takes 2-3 seconds to heat and engage. If the lock clicks but E27 still appears, the detect microswitch inside the lock assembly is failing — the mechanical lock works but the board gets no confirmation signal.
You Might Also Notice
- •Door will not lock
- •Unit will not start
- •Lock clicks but cycle does not begin
Parts, Cost & Difficulty
Repair Difficulty
Moderate — Some Experience NeededEstimated Repair Cost
$120–$250
Parts + labor. Free diagnosis with repair.
Parts That May Need Replacement
12-008-693-001 (door lock assembly / interlock)12-010-446-001 (door strike plate)
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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Frequently Asked Questions
What does Bosch error code E27 mean?
Bosch error code E27 indicates: Door lock error. This is a medium-severity issue affecting your washer.
How do I fix Bosch error code E27?
Ensure door is fully closed — push firmly until it clicks Then, Inspect door strike for alignment — bent strike prevents proper engagement Then, Test door lock assembly continuity (3 terminals: lock/unlock/detect) There are 1 more steps — see the full troubleshooting guide above. This repair typically requires professional tools and expertise.
How do I know if my washer has error E27?
Besides the error code on the display, common signs include: Door will not lock; Unit will not start; Lock clicks but cycle does not begin. If you notice any of these symptoms, check your washer's display panel for error code E27.
How much does it cost to fix Bosch E27?
Repair costs for Bosch E27 typically range from $120 to $250 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.