4.5 Equipment Breakdown Coverage

4.5 Equipment Breakdown Coverage

Commercial property forms exclude the mechanical and electrical breakdown of production machinery, boilers, pressure vessels, and electronic systems. Equipment Breakdown Insurance (formerly called Boiler and Machinery Insurance) fills this gap, covering sudden, accidental breakdown of covered "objects" that standard property policies exclude.

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Covered Objects

An "object" is any boiler, pressure vessel, refrigeration or air-conditioning equipment, electrical or electronic equipment, production machinery, or computer equipment scheduled on the policy. Coverage applies to equipment the insured owns, leases, or is legally responsible for.

Covered Causes of Loss

Equipment Breakdown covers sudden, accidental physical loss to an object caused by:

• Explosion of pressure vessels (boilers, steam drums) causing rupture or cracking
• Electrical injury or arcing — short circuits, arcing, or burn-out of motors or wiring
• Mechanical breakdown — rupture, cracking, or implosion of moving parts, or centrifugal-force damage
• Loss from overload, fatigue, or collision of machinery components

It does not cover gradual wear and tear, corrosion, erosion, electrolysis, marring, or deterioration — these are maintenance, not breakdown.

Five Coverage Parts

A standard Equipment Breakdown form bundles several distinct insuring agreements:

A spoilage endorsement covers perishable goods (food, pharmaceuticals) ruined when refrigeration or cold-storage equipment breaks down.

Key Adjuster Distinctions

• No coverage for fire — fire damage to a boiler is covered by the property policy, not Equipment Breakdown.
• Burden of proof — the insurer must show the loss was caused by an excluded cause (wear, corrosion) to deny; otherwise the sudden breakdown is covered.
• Inspection service — many forms include a boiler-inspection service that produces confidential inspection reports for the insured.

Coinsurance and Limit Setting

Equipment Breakdown policies commonly carry a coinsurance clause (often 80% or 100%). The insured must carry a limit equal to the coinsurance percentage of the full replacement value of all covered equipment at each location; otherwise, a partial loss is paid proportionally. Because equipment values change, insureds should review limits annually to avoid a coinsurance penalty at loss time.

Exclusions Common to Equipment Breakdown

In addition to gradual wear, corrosion, and deterioration, the form excludes:

• Fire — handled by the property policy (unless the breakdown causes a subsequent fire, in which case the breakdown damage is covered and the fire damage is handled by property).
• Flood, earthquake, and water below ground.
• Nuclear reaction, radiation, or radioactive contamination.
• War, military action, and terrorism.
• Chemical damage, frosting, marring, or clogging of filters.
• Loss to a covered object while being tested or during experimental operations.

Adjuster Workflow at a Breakdown Loss

1. Confirm the object is scheduled or qualifies as newly acquired/auxiliary equipment.
2. Determine the cause — sudden breakdown (covered) versus gradual wear or corrosion (excluded). Inspection reports and expert engineer opinions are decisive.
3. Verify the five coverage parts triggered: repair cost, expediting expense, business income (if operations suspended), ordinary payroll (if endorsed), and spoilage (if endorsed).
4. Apply coinsurance to the damaged equipment value to detect any underinsurance penalty.
5. Coordinate with the property adjuster when fire or a covered peril follows the breakdown, to allocate damage between the two policies.

Exam Tip

A ruptured boiler explosion that damages surrounding building property illustrates the boundary: the boiler itself and the expediting expense are Equipment Breakdown; the resulting building damage from the explosion may be a property-policy peril depending on the form's explosion definition.

Inspection and Reporting Service

A hallmark of Equipment Breakdown is the inspection service: the insurer's inspectors examine boilers, pressure vessels, and electrical equipment and issue confidential inspection reports to the insured. These reports support preventive maintenance and may satisfy state boiler-inspection mandates. The reports are privileged and are not admissions of the equipment's condition for coverage purposes. The adjuster may request the most recent inspection report to help evaluate whether a breakdown was sudden or the result of deferred maintenance.