Failure Mode
A failure mode describes the specific way an asset, component, or function fails to meet its required performance.
What this term means in maintenance
A failure mode describes the specific way an asset, component, or function fails to meet its required performance.
Examples of failure modes
Failure modes may include:
- Fails to start
- Stops during operation
- Leaks
- Overheats
- Produces insufficient flow
- Runs at reduced speed
- Gives an incorrect reading
- Fails open
- Fails closed
- Excessive vibration
Failure mode versus cause
The failure mode describes how the failure appears. The cause explains why it occurred.
Example:
- Failure mode: Pump produces insufficient flow
- Cause: Worn impeller
- Root condition: Abrasive solids entered because filtration was ineffective
Why failure modes matter
Clear failure modes improve:
- Work-order history
- Pareto analysis
- FMEA
- PM design
- Root cause analysis
- Reliability reporting
Practical example
“Bearing failed” may be too broad. “Bearing overheated and seized” is a more useful failure mode when supported by evidence.
Common mistake
Mixing symptoms, failure modes, causes, and corrective actions in one code list makes analysis unreliable.
Related concepts
Related maintenance terms
Keep exploring connected CMMS, reliability, and maintenance planning terms.
Failure Code
A failure code is a controlled classification used to record how an asset or component failed in a consistent, reportable way.
Root Cause Code
A root cause code is a controlled classification used to record the verified underlying cause of a maintenance failure or recurring problem.
Failure Mode and Effects Analysis
Failure Mode and Effects Analysis, or FMEA, is a structured method for identifying how an asset or process may fail, the effects of each failure, existing controls, and actions needed to reduce risk.
Glossary FAQs
- What is a failure mode?
It is the specific way an asset or function fails to meet required performance.
- How is a failure mode different from a cause?
The failure mode describes how failure appears. The cause explains why it occurred.
- Why record failure modes?
They support consistent history, FMEA, Pareto analysis, PM design, and reliability improvement.