Subscribe to Insights

Next | View All

Preventive Maintenance:

The Hidden Safeguard Behind Lab Performance

What keeps laboratory workflows running smoothly day after day? In most laboratories, operational disruptions rarely begin with major equipment failure. Consistent preventive maintenance helps keep equipment performing properly. It does this by addressing routine service interval needs, maintaining accurate maintenance records, and identifying components operating below specification before they impact daily operations. 

Laboratory teams are under constant pressure to maintain throughput, meet turnaround-time expectations, and remain audit-ready. When instrumentation is at the center of nearly every workflow, equipment reliability becomes more than a maintenance concern—it becomes a business and quality concern.

Preventive maintenance (PM) is one of the most effective ways laboratories can reduce operational risk before it affects productivity, compliance, or patient service. According to Deloitte's Manufacturing Operations Benchmark, downtime can account for 5–20% of total productive capacity lost¹, highlighting the significant impact equipment interruptions can have on operational performance.

The Real Cost of Waiting For Equipment to Fail

Many laboratories operate with limited tolerance for downtime. Whether supporting histology, pathology, research, or clinical operations, even a single instrument disruption can create a ripple effect across workflows.

Unplanned downtime can impact:

• Sample throughput
• Turnaround Times
• Staffing Efficiency
• Revenue generation
• Customer and clinician satisfaction

Studies have estimated that unplanned downtime can cost organizations between $1,000 and $10,000 per hour, depending on the operation and equipment involved.² 

While emergency repairs often restore functionality, the operational disruption has already occurred. In many cases, the more significant cost is not the repair itself but the lost productivity and workflow interruption that accompany it. The financial impact is only one side of the problem. Even if the equipment does not completely fail, daily operations can be subtlety affected by declining performance.

Performance Consistency Depends on Equipment Consistency

Laboratories invest heavily in standardized processes, training, and quality systems to ensure reliable results. Yet even the most well-designed workflow can be undermined when instrumentation is not performing as intended.

As equipment ages or components wear, performance can drift incrementally. The changes may not trigger an immediate failure, but they can introduce variability that affects workflow efficiency and increases the likelihood of rework, troubleshooting, or corrective actions.

Preventive maintenance helps identify and address these issues before they escalate into larger operational problems, supporting more consistent instrument performance across the equipment lifecycle.

Compliance Doesn't Stop at Calibration

Regulatory inspections and quality audits evaluate more than test performance. They also examine evidence that laboratories are maintaining equipment according to manufacturer recommendations and internal quality procedures. Missing, incomplete, or inconsistent maintenance documentation can create unnecessary audit challenges even when instruments appear to be functioning properly.

Preventive maintenance programs support:

• Equipment traceability
• Service record completeness
• Documentation consistency
• Audit preparedness
• Alignment with manufacturer recommendations

For laboratories operating in regulated environments, maintenance records often serve as proof that systems are being managed proactively rather than reactively.

Proactive Maintenance Reduces Operational Risk

A common misconception is that preventive maintenance exists primarily to prevent catastrophic failures. In reality, its value extends much further.

Well-executed PM programs help laboratories:

• Reduce unexpected downtime
• Improve equipment reliability
• Extend instrument lifespan
• Minimize repair-related disruptions
• Support predictable operating budgets

Research cited by Agilent Technologies found that manufacturer-recommended preventive maintenance can reduce repair costs by up to 41%.³ Similarly, organizations utilizing predictive and preventive maintenance strategies have reported productivity-loss reductions of 30–50%¹, demonstrating the measurable operational value of proactive service programs.

Maintenance as an Operational Strategy

Preventive maintenance is often viewed as a service activity. Many laboratories are starting to view it differently.

They recognize maintenance as a strategic operational safeguard that helps protect three critical outcomes: 

Productivity – keeping instruments available when needed. 

Quality – supporting consistent performance and reliable results. 

Compliance – maintaining the documentation and service history required for audit readiness.

When maintenance is postponed, laboratories assume risk in each of these areas simultaneously. When maintenance is performed proactively, they strengthen operational resilience before issues emerge.

Reliability is Not an Accident

Laboratories depend on equipment every day, but dependable equipment rarely happens by chance. It is the result of disciplined maintenance, consistent documentation, and proactive service practices designed to prevent problems before they disrupt operations.

As testing volumes grow and expectations continue to rise, preventive maintenance remains one of the simplest and most cost-effective investments laboratories can make in operational stability. Reviewing a laboratory’s current maintenance schedule today will help prevent tomorrow’s unexpected downtime. 

Because the best downtime event is the one that never occurs.

^{1 Deloitte Manufacturing Operations Benchmark 2023.  
2 Aberdeen Research, The Cost of Downtime, 2018.  
3 Agilent Technologies, 5‑year study of 38,000+ instrument service records.}

Return to Insights >>