Compare Corrective vs Emergency Maintenance

Corrective vs Emergency Maintenance

Both corrective maintenance and emergency maintenance happen in response to a fault or issue with equipment. The main difference between the two is the scale of that problem.

Corrective maintenance identifies problems as a result of inspections, preventive maintenance (PM) tasks, or work orders. These issues typically do not affect the health or viability of a facility and its employees. On the other hand, emergency maintenance occurs when an equipment or facility problem significantly threatens safety, profitability, or the overall integrity of the institution.

A facility can’t usually avoid corrective maintenance because many small things can go wrong with any piece of equipment or space. For example, say a maintenance technician performs a routine inspection on a tenant’s room and finds a leaking pipe during that inspection. They will then perform corrective maintenance on the pipe as well, even though the initial inspection wasn’t concerned with the plumbing.

Unlike corrective maintenance, a facility can often eliminate most emergency maintenance scenarios with an effective PM program. This is because emergency maintenance only applies to the most significant maintenance needs. However, these threats can’t be completely eliminated, making an emergency maintenance plan a necessity for most, if not all, organizations.

Most facilities need both a corrective maintenance and an emergency maintenance program. However, there’s no need for both programs to be similarly specific or drawn out because corrective maintenance most often occurs during the course of other work (unplanned). Emergency maintenance programs should, for the safety and viability of a facility, be fleshed out as much as possible to avoid risk to employee and organizational health. 

Differences between corrective and emergency maintenance

  Corrective maintenance Emergency maintenance
Definition Corrective maintenance is work that takes place when issues are discovered during the course of another task like a PM or work order. Emergency maintenance is a type of reactive maintenance aimed at preventing threats to a facility’s employees, property, or viability.
Workflow Corrective maintenance workflow diagram Emergency maintenance workflow diagram
Trigger Discovery of issue Automated trigger/response, human request
Cost Low Medium/High
Cost Savings 10-30% [1] Dependent on PM program effectiveness and types of possible emergencies
Resources Needed
  • Maintenance software for work orders
  • System for automated shutoff/intervention
  • Defined emergency maintenance scenarios
  • Increases the lifespan of equipment
  • Optimizes maintenance and resource planning
  • Diagnoses and fixes threats to employee safety, organization property, and public opinion
  • Can be low cost if implemented with a solid PM program
  • Can be expensive to keep up over the long term
  • Labor intensive due to constant maintenance tasks
  • Only used in emergency scenarios (difficult to see ROI)
  • Significant consequences if performed poorly or inadequately
Use Case An organization wants to decrease unplanned downtime and emergency maintenance but does not have a large maintenance budget. As a solution, they implement a PM program for select assets. Work orders are scheduled for inspections, lubrication, filter replacements, and parts replacements based on recommendations from OEMs. A factory with a large variety of water piping creates an emergency maintenance plan for burst pipes. The need for the plan is clear as a burst pipe in a floor full of electrical equipment can be a significant health and profitability hazard for the organization and its employees. In tandem with this plan, the factory decides to further flesh out preventive maintenance inspections on the piping to lower the risk of an emergency occurring.

[1] Christer Stenström, “Preventive and corrective maintenance – cost comparison and cost–benefit analysis.

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