Exhaust Fan Maintenance Checklist

Utilize this Exhaust Fan Maintenance Checklist for routine inspection of motors, bearings, belts, ductwork, dampers, and measured airflow performance.

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Exhaust Fan Maintenance Checklist



Fan And System Details

1. Fan asset ID or tag number


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2. Area or zone served by the fan


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3. Make and model


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4. Fan type (axial, centrifugal, in-line, roof-mounted)


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5. Design airflow and static pressure from the equipment schedule


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Isolation And Safety Preparation

1. The fan is isolated at the local isolator following lockout/tagout procedure


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2. Zero energy is verified at the motor terminals before any physical inspection


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3. Isolation tags are displayed and the impeller has come to a complete stop


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4. All guards and access panels are refitted and secured before the fan is restarted


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Motor And Electrical Connections

1. Motor surface temperature is within the manufacturer's stated limit


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2. Measured amp draw on each phase is within the motor nameplate rating


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3. The motor nameplate is present and legible


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4. Terminal box connections are tight and free from discoloration or scorching


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5. Earth continuity to the fan and motor is confirmed


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6. The local isolator is labeled, accessible, and operates correctly


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7. Cable glands and flexible conduit are intact and correctly sealed


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Bearings, Belts And Drive

1. Bearings run without grinding, rumbling, or knocking


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2. Bearing shaft play is within the manufacturer's tolerance


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3. Bearings are lubricated per the service schedule with no grease leakage


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4. Drive belts are free from cracking, glazing, and fraying


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5. Belt tension matches the manufacturer's specification


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6. Drive and driven pulleys are aligned with no visible wear on the sheave faces


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Impeller, Housing And Mountings

1. Impeller blades are undamaged and free from cracks or distortion


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2. Blades are free from dust, grease, or debris buildup that would cause imbalance


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3. The fan housing is free from corrosion, dents, and perforation


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4. Housing and mounting fasteners are tight


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5. Anti-vibration mounts and springs are intact with no deterioration or fatigue


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6. Measured vibration at the bearing housings is within the acceptable range


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Ductwork, Dampers And Discharge

1. Flexible duct connections are intact with no tears or splits


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2. Rigid ductwork joints are sealed with no visible air leakage


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3. Ductwork is free from corrosion, dents, and internal blockage


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4. Duct access and inspection panels are secured and sealed


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5. Volume control dampers move freely and are set to the commissioned position


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6. Backdraft or non-return dampers close fully when the fan stops


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7. The discharge point is unobstructed and positioned to prevent air re-entering intakes


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Filters And Cleanliness

1. Filters are fitted correctly with no bypass around the frames


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2. Filter media is free from clogging, saturation, and physical damage


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3. Differential pressure across the filters is within the operating range


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4. Condensate drains and drip trays are clear and draining freely


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Performance And Controls Verification

1. The fan starts on demand and runs at each available speed setting


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2. Impeller rotation direction matches the arrow on the housing


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3. Measured airflow at the grille or duct is within the design specification


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4. Static pressure reading is within the expected range for the system


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5. Interlocks with the fire alarm or building management system operate correctly


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6. Run indication, fault alarms, and airflow sensors report accurately at the control panel


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Maintenance Records And Follow-up

1. The planned maintenance log for this fan is complete and up to date


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2. Defects raised at the previous inspection have been closed out


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3. Servicing intervals follow the manufacturer's recommended schedule


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4. Cleaning and testing certificates required for this fan type are on file and in date


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Checklist by GoAudits.com – Please note that this checklist is intended as an example. We do not guarantee compliance with the laws applicable to your territory or industry. You should seek professional advice to determine how this checklist should be adapted to your workplace or jurisdiction.

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