Troubleshooting steps
Check safety circuit, verify switches, test relays, contact service
Elevator Error Codes
F-04 – Safety Error
Safety system error detected
Details
An error has been detected in the elevator safety system.
Error typeerror
MeaningSafety error
Typical causesSafety circuit fault, switch problem, relay issue
SolutionsCheck safety circuit, verify switches, test relays, contact service
Severitycritical
Catalog references
Where this appears
ThyssenKruppF-04
Utilities
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FAQ
Common questions
Is this critical?
Yes, safety errors are critical. Elevator must be inspected before operation.
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