Fillable checklist

Generator Inspection Checklist: Portable and Standby Walk (Free Printable PDF)

Fillable portable and home standby generator walk for oil, fuel, cords, GFCI, CO placement, and transfer gear. Print blank or save a filled PDF.

Inspections Fillable form · 7 sections · 58 checks Download filled or blank PDF and CSV Cross-checked against Ready.gov, CPSC, Honda, Generac, Champion · Last verified Sep 16, 2026

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  • 7 sections
  • 58 checks
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Form details

Generator and walk

Mark Portable or Home standby first. Transfer-switch rows are N/A on a receptacle-only portable. This is not a campsite RV setup form.

16 fields
Generator and walk

Inspection station

Engine, fluids, and fuel

Honda: level surface, engine off, then leaks, oil, air filter, and fuel. Champion: oil before every use. Mark LPG, piped gas, enclosure, and battery N/A when that hardware is not here.

13 items
Engine, fluids, and fuel

Level surface, engine off

Honda: park on a firm, level surface and switch the engine off before oil, fuel, and leak checks.

Level surface, engine off: OK, Defect, N/A

Oil and fuel leaks

Look around and underneath for oil or fuel. Generac also wants lines and connections checked on standby sets.

Oil and fuel leaks: OK, Defect, N/A

Engine oil level

Honda and Champion: check oil before each use, on the level, with the dipstick method in that book's pictures. Use the OEM grade, not a guess.

Engine oil level: OK, Defect, N/A

Fuel level or supply

Portable: tank level and cap. Standby: NG or LP supply as the installer and OEM require. Mark the fuel you do not have N/A.

Fuel level or supply: OK, Defect, N/A

Caps, tanks, hoses, fittings

No cracked hoses, loose clamps, or weeping fittings. Champion LPG: soap-and-water on connections, never a flame.

Caps, tanks, hoses, fittings: OK, Defect, N/A

LPG cylinder position and OPD

Champion dual-fuel: upright cylinder with OPD valve, at ground level, away from heat. N/A if this unit has no LPG.

LPG cylinder position and OPD: OK, Defect, N/A

Air filter installed and serviceable

Honda: dirty or missing filter restricts airflow and can wreck the engine. Never run without the filter.

Air filter installed and serviceable: OK, Defect, N/A

Cooling slots, intake, muffler area

Champion: keep air vents and cooling slots clean. Honda: keep flammables away from the hot exhaust.

Cooling slots, intake, muffler area: OK, Defect, N/A

Standby enclosure louvers and 3 ft vegetation

Generac: clear dirt and debris from louvers. Remove shrubs or tall grass within 3 ft (0.91 m) of intake and discharge. N/A on a portable.

Standby enclosure louvers and 3 ft vegetation: OK, Defect, N/A

Water, rain, standing water

Ready.gov: keep the generator dry. Generac: no standing water; keep sprinklers, downspouts, and runoff off the enclosure.

Water, rain, standing water: OK, Defect, N/A

Starting or standby battery

Generac Schedule A includes battery condition. Portable electric-start: terminals tight, case intact. N/A on recoil-only portables.

Starting or standby battery: OK, Defect, N/A

Piped NG or LP leak test

Generac: perform the fuel-system leak test in the standby manual. N/A on a gasoline portable with no piped gas.

Piped NG or LP leak test: OK, Defect, N/A

Housing, frame, and mounts

No broken mounts, missing covers, or exhaust hardware hanging loose. Do not add a muffler extension Honda forbids.

Housing, frame, and mounts: OK, Defect, N/A

Inspection station

Electrical, cords, and grounding

Red Cross and Ready.gov: heavy-duty outdoor cords, three prongs, no backfeed. Honda: GFCI monthly, or before each use if stored outdoors. Do not invent a ground-rod ohm fail.

12 items
Electrical, cords, and grounding

Receptacles and covers

No burned plastics, missing covers, or bent slots. Champion: do not touch bare wires or receptacles.

Receptacles and covers: OK, Defect, N/A

Circuit breakers and overload reset

Champion: breakers ON or closed before loading. Reset only after you reduce the load. GFCI is not overload protection.

Circuit breakers and overload reset: OK, Defect, N/A

GFCI TEST and RESET

Honda: monthly, and before each use if stored outdoors unprotected. Champion GFCI models: monthly lamp TEST then RESET. N/A if no GFCI receptacles.

GFCI TEST and RESET: OK, Defect, N/A

Heavy-duty outdoor-rated cords

Ready.gov: heavy-duty extension cords. Red Cross: outdoor-rated, rated in watts or amps at least equal to the connected load.

Heavy-duty outdoor-rated cords: OK, Defect, N/A

Cord jacket, tears, and grounding pin

Red Cross and Honda: replace damaged cords. The plug must have all three prongs, including the grounding pin. Champion: no worn, damaged, or frayed cords.

Cord jacket, tears, and grounding pin: OK, Defect, N/A

No wall-outlet backfeed

Red Cross, Honda, and Champion: never plug the generator into a building receptacle. That backfeeds the utility and can kill line workers.

No wall-outlet backfeed: OK, Defect, N/A

Ground terminal per OEM and electrician

Honda: consult a qualified electrician, inspector, or AHJ before using the ground terminal. Do not write a universal ohm reading on this form.

Ground terminal per OEM and electrician: OK, Defect, N/A

Neutral-to-frame bonding matches this unit

Honda portables often float the AC neutral. Champion lists Neutral Floating or Neutral Bonded to Frame by model. Read this unit's book.

Neutral-to-frame bonding matches this unit: OK, Defect, N/A

Connected load within rating

Honda and Champion: appliance rating must not exceed the generator or the receptacle. Red Cross: stagger starts so you do not overload.

Connected load within rating: OK, Defect, N/A

Dry generator, dry hands

Ready.gov, Red Cross, and Champion: keep the set dry. Do not run in rain or with wet hands. Red Cross allows an open canopy, not a closed tent.

Dry generator, dry hands: OK, Defect, N/A

CO shutoff feature if equipped

CPSC: look for CO shutoff (PGMA G300 or UL 2201). Champion CO Shield is not a substitute for indoor CO alarms. N/A if not installed. No ppm Pass/Fail.

CO shutoff feature if equipped: OK, Defect, N/A

Panel, strain relief, and visible wiring

No pinched leads, missing strain relief, or exposed conductors. Stop and use a technician if the panel is open or damaged.

Panel, strain relief, and visible wiring: OK, Defect, N/A

Inspection station

Placement, exhaust, and CO

Ready.gov and CPSC: portable generators outdoors, at least 20 feet from windows, doors, and attached garages. Honda 3-foot wall spacing is fire and cooling, not a CO substitute. No CO ppm Pass/Fail on this form.

12 items
Placement, exhaust, and CO

Outdoors only, never enclosed

CPSC, Ready.gov, EPA, and Red Cross: never in a home, garage, basement, crawlspace, or shed. Opening doors or windows is not enough.

Outdoors only, never enclosed: OK, Defect, N/A

Not on a porch, carport, or balcony

CPSC: do not operate on an outside porch or in a carport. EPA: not on balconies, decks, or porches, and not near doors, vents, or windows.

Not on a porch, carport, or balcony: OK, Defect, N/A

Portable 20 feet from openings

Ready.gov: outdoors and at least 20 feet from windows, doors, and attached garages. CPSC: at least 20 feet from the house. N/A on a permitted standby pad.

Portable 20 feet from openings: OK, Defect, N/A

Exhaust pointed away from buildings

CPSC: direct exhaust away from the home and any other building someone could enter.

Exhaust pointed away from buildings: OK, Defect, N/A

Windows and vents closed in the exhaust path

CPSC: keep windows and other openings closed in the path of the exhaust. Seal nearby soffit, dryer, and exhaust-fan vents.

Windows and vents closed in the exhaust path: OK, Defect, N/A

Honda 3-foot fire and cooling space

Honda: at least 3 feet (1 meter) from building walls and other equipment, and no flammables by the engine. This does not replace the 20-foot CO rule.

Honda 3-foot fire and cooling space: OK, Defect, N/A

Standby 3 ft vegetation and 10 ft air intakes

Generac: 3 ft (0.91 m) clear at louvers. Outdoor air intakes for distribution systems not less than 10 ft (3.05 m) horizontally. N/A on a portable.

Standby 3 ft vegetation and 10 ft air intakes: OK, Defect, N/A

Working CO alarms in the building

Ready.gov, CPSC, EPA, and Red Cross: working CO alarms on every level and outside sleeping areas. Battery backup. Champion: CO Shield is not that indoor alarm.

Working CO alarms in the building: OK, Defect, N/A

CO and smoke alarms tested

CPSC: test CO and smoke alarms monthly. EPA notes CPSC wants a unit on each level outside sleeping areas.

CO and smoke alarms tested: OK, Defect, N/A

Fuel stored outdoors, approved containers

Ready.gov: fuel outdoors, 20 feet from openings with the generator. Red Cross: approved safety can, outside living areas, not next to a fuel-burning appliance.

Fuel stored outdoors, approved containers: OK, Defect, N/A

Cool before refueling

Ready.gov, Red Cross, Honda, and Champion: shut down and let the engine cool. Fuel on a hot muffler can ignite.

Cool before refueling: OK, Defect, N/A

Dry pad or open canopy

Ready.gov: protected from rain or flooding. Red Cross: dry surface under an open tarp on poles, not a closed structure that traps exhaust.

Dry pad or open canopy: OK, Defect, N/A

Inspection station

Transfer switch and interlock

Mark every row N/A if this portable is used only at its receptacles. Building feeds need listed transfer equipment and a licensed electrician. Generac standby: return the controller to AUTO and the MLCB ON (CLOSED).

11 items
Transfer switch and interlock

Transfer switch or listed interlock present

Mark N/A if this portable is used only at its receptacles. If it can feed a building, Champion wants a listed transfer switch, not a dryer-cord cheat.

Transfer switch or listed interlock present: OK, Defect, N/A

Generator isolated from utility

Honda, Champion, Generac, and Red Cross: the connection must isolate generator power from utility lines so the set cannot backfeed.

Generator isolated from utility: OK, Defect, N/A

Listed gear, licensed electrician, AHJ

Champion: licensed electrician and local authority having jurisdiction. Generac: never connect a standby unit to a building without an approved transfer switch.

Listed gear, licensed electrician, AHJ: OK, Defect, N/A

Enclosures, covers, and labels

Transfer-switch and inlet covers on. Labels readable. No scorch marks or loose lugs you can see without opening live gear.

Enclosures, covers, and labels: OK, Defect, N/A

Inlet box and generator cord

If a portable uses a power inlet, the cord and inlet must match the transfer or interlock rating. N/A on receptacle-only or hardwired standby.

Inlet box and generator cord: OK, Defect, N/A

Standby controller in AUTO

Generac: AUTO is what starts the set when utility drops. After a walk or service, press AUTO. N/A on a portable with no AUTO controller.

Standby controller in AUTO: OK, Defect, N/A

Generator MLCB ON (CLOSED)

Generac: leaving the generator disconnect OFF prevents the house from seeing generator power in an outage even if AUTO is lit. N/A on portables without an MLCB.

Generator MLCB ON (CLOSED): OK, Defect, N/A

Exercise timer set and last run known

Generac: exercise works only in AUTO. Weekly, biweekly, or monthly per that controller. Transfer of loads does not occur during exercise unless utility is lost.

Exercise timer set and last run known: OK, Defect, N/A

No manual transfer under load

Generac: do not manually transfer under load. Disconnect sources before a manual transfer. N/A if you are not operating the mechanism.

No manual transfer under load: OK, Defect, N/A

Grounding per optional standby rules

NEC Article 702 (EC&M summary): if the transfer switch switches the grounded conductor, treat the generator as separately derived. If it does not, bond the equipment grounding conductor to the building electrode system. Electrician and AHJ decide. No ohm number here.

Grounding per optional standby rules: OK, Defect, N/A

Only one source can feed the panel

Breaker interlock or ATS must prevent utility and generator from paralleling. If you cannot confirm that hardware, mark Defect and stop.

Only one source can feed the panel: OK, Defect, N/A

Inspection station

Periodic service due this walk

Done, Due, or N/A. Copy hours from this model's OEM chart. Generac Schedule A/B numbers on air-cooled home standby manuals are not Honda or Champion portable intervals.

10 items
Periodic service due this walk

Engine oil change

Honda and Champion list first-hours then calendar or hour intervals by model. Generac air-cooled standby used here: first 25 hours, then Schedule A (often two years or 200 hours), shorter in severe cold or continuous heat.

Engine oil change: Done, Due, N/A

Oil filter (if equipped)

Generac Schedule A includes oil filter. Many small Honda and Champion portables have no spin-on filter. Mark N/A when the OEM has none.

Oil filter (if equipped): Done, Due, N/A

Air filter service

Honda: service more often in dust. Generac Schedule B includes air-filter replacement. Champion lists clean-or-replace hours in that model's chart.

Air filter service: Done, Due, N/A

Spark plug(s)

Generac Schedule B: replace plugs. Honda and Champion: gap and replace on that model's hours. N/A if you are not due and not opening the engine.

Spark plug(s): Done, Due, N/A

GFCI monthly test recorded

Honda: record the test on the GFCI card when the unit has one. Champion: monthly TEST/RESET. N/A with no GFCI.

GFCI monthly test recorded: Done, Due, N/A

CO alarm batteries

EPA points to checking or replacing batteries when clocks change. CPSC: monthly test. This is the house alarm, not the generator shutoff.

CO alarm batteries: Done, Due, N/A

Standby or electric-start battery service

Generac Schedule A: battery check. Follow that book's charge and terminal steps. N/A on recoil-only portables.

Standby or electric-start battery service: Done, Due, N/A

Standby exercise run completed

Generac: if the set cannot exercise monthly, the manual has a longer no-load run procedure. N/A on portables with no exercise timer.

Standby exercise run completed: Done, Due, N/A

Valve clearance if OEM due

Generac: inspect/adjust after first 25 hours, then on Schedule B where the engine requires it. Some 14/18 kW 816cc units exclude valve lash. Technician item. N/A if not due.

Valve clearance if OEM due: Done, Due, N/A

Storage fuel plan (stabilize or drain)

Follow this model's storage chapter after a long idle. Do not leave stale gasoline in a carburetor if the OEM says drain or stabilize.

Storage fuel plan (stabilize or drain): Done, Due, N/A

Form details

Defects and sign-off

List every Defect. The safe-to-operate box is this inspector's statement, not a permit or a licensed inspection.

9 fields
Defects and sign-off

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These checklists are provided for general reference only. Always verify the steps against the vehicle manufacturer's service information, your shop's procedures or a qualified technician before relying on them, especially for safety-critical work.

What this checklist is for

This is a form you can fill out when doing a periodic or pre-use walk of your home standby or portable generator. Fill in the fields on screen and download either a CSV or PDF file. Or download a blank version which you can fill out by hand. It includes the person signing off, the unit details, the status of each station (OK, Defect, N/A, or Done, Due, N/A on the service block), and any defect.

The location of your outdoor generator matters. Because they create carbon monoxide, the U.S. Consumer Product Safety Commission and Ready.gov say that generators and fuel must remain outside. Position them more than 20 feet from any door, window, or attached garage. Direct the exhaust away from the home. Never operate a portable generator inside your home (such as a basement, carport, or porch).

Follow the OEM's pre-operation checks for the engine, oil, and air filter. These instructions comes from Champion, Generac and Honda. The form is based off NEC Article 702 regarding building connections and grounding. It's not a permit inspection or OEM sheet.

What it is not

  • It is not a campsite or RV hookup form, not a generator-compartment RV install, and not a job-site construction log.
  • It is not a light-vehicle station walk (see the published vehicle inspection checklist) and not a licensed electrical inspection or utility interconnect approval.
  • It is not a CO ppm Pass/Fail chart. CPSC, Ready.gov, and EPA tell you where to run the machine and to keep working CO alarms in the house. They do not give this form a numeric indoor CO fail line. A generator CO shutoff (CPSC points to PGMA G300 and UL 2201; Champion calls its feature CO Shield) is not a substitute for indoor CO alarms.
  • It is not a universal ground-rod ohm test. Honda says consult a qualified electrician, inspector, or AHJ before using the ground terminal. Champion describes a remote rod option on some units and still tells you to follow local code. Do not invent a resistance number this page does not list.

How to fill each block

Is it Home Standby or Portable? Mark that first. That will tell you which rows is active, and which ones is N/A. Then add the make, model, serial number, rated watts or kW, fuel type and hour meter reading.

A pre-use check is a look before you start. A periodic check is an hour- or calendar-based walk through for service. You check the same station, but with more attention to cords, water, and stale fuel after a storm or storage.

Check your fuel, engine, and other fluids. For units made by Honda, you have to check oil, air filters, fuel, and leaks but only when engine is OFF and the unit is on a level surface. For units made by Champion, always check the oil before use. For units made by Generac, you must check oil levels and battery condition. You must also check for fuel and oil leaks, enclosure louvers, water intrusion, and fuel-system leaks.

Always ensure that your generator has an air filter installed. If it's a gasoline-only portable, don't run it without one. If it's a cord-and-plug portable, it can't be piped for natural gas or LP. If it's a portable, you can't get a standby enclosure for it.

Connect appliances with heavy-duty extension cords. Use only outdoor-rated cords that can handle the required amperage (CPSC, NFPA, CDC, American Red Cross). All three prongs must be intact, and the cord cannot have any tears or cuts. Never plug into a wall outlet. Generator power should only flow into the home's electrical system from the generator.

Double insulated tools or grounded 3-prong cords is mandatory for Honda. Worn or frayed cords is prohibited on Champion generators. If a generator is powering your home, use a transfer switch installed by a licensed electrician. Honda GFCI manuals say test monthly, but Champion GFCI models require a monthly test and then a reset with a lamp.

Keep the generator dry. Do not run in the rain or while hands is wet. Never record a Pass/Fail result for the ground resistance test.

Run the generator outside ONLY. It should never be run inside your home, basement, garage, shed or crawlspace. Using open doors and windows for airflow is not enough. Position the generator at least 20 feet from windows, doors, and attached garages. Exhaust must point away from all building openings. Do not run it on porches, balconies, or carports.

According to Honda instructions, there must be 3 feet of fire and cooling clearance between the unit and walls and other equipment. That's in addition to the 20-foot CO distance rule. For Generac standby units, mechanical air intakes must be 10 feet horizontal from the enclosure and louvers 3 feet from shrubs.

Use CO alarms that is installed on every level and outside sleeping areas. Test them monthly. Refuel when engine is cool. Fuel storage should be outdoors in approved containers.

What varies

Mark the whole station N/A if using a portable generator only at the receptacles. Generator feeding building wiring must be isolated from utility. Backfeeding by plugging generator into wall outlet kills utility workers.

For standby connection, Generac must be installed by a licensed electrician. Never manually transfer under load. Walk to the generator to see that the MLCB is ON and AUTO is on. Verify exercise is set up. Optional standby grounding depends on transfer equipment. Your electrician and the AHJ make this decision, not this form.

Mark each with a record of its current status: OK, Defect, or N/A. Service intervals differ from model to model. For instance, Generac Schedule A (for 2 years/200 hours) calls for an inspection of battery, oil & filter. First oil/filter change is at 25 hours.

In continuous hot or severe cold operation, shorter intervals apply. Schedule B (every 2 years) covers spark plugs, air filters, valve clearance. Don’t use these hours for a portable Champion or Honda inverter. Check the manual and the plate on the machine.

Note all defects observed. Select the correct course of action. This walk’s inspector’s statement is NOT a permit; it is the check for safe operation. Time and sign the form. If this was a periodic walk, add a next-due date.

There are differences between standby and portable units. A standby unit is a permanently installed set located at the time of permit by code and the manufacturer. Portable on wheels is also on a patio and still has to comply with the 20-foot CO requirement. Perform the same checks as above, but do not move the standby unit 20 feet away from the house.

Leak and storage checks vary with fuel types: For dual-fuel Champion units, use an LPG hose; do a soap-bubble leak check. For standby NG/LP units, use the Generac fuel-system leak test. For diesel units, exhaust, filter and oil checks is still necessary. Gas-only rows should be marked N/A for non-gasoline units.

Grounding and bonding methods vary by model. Many Honda portable manuals say they have a floating AC neutral connected to receptacle pins. Champion manuals call it Neutral Bonded to Frame vs. Neutral Floating.

After you finish

Feeding a dwelling through a transfer switch is an NEC Article 702 and Article 250 problem for a licensed electrician. Code sections can be amended locally and at state levels. There is no mention of ohm readings, wire gauge, or rod length on this form.

Manufacturer specs, such as Honda’s 3-foot rule or Generac’s vegetation guidelines, do not override the Ready.gov/CPSC rule to place portable generators 20 feet outdoors. Champion says avoid obstructions near generators equipped with CO shutoffs.

Optional features include GFCI, CO shutoff, electric start and hour meters. If the hardware isn’t present, mark as N/A. Don’t fail a generator because it lacks a feature that the OEM didn’t install.

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A Defect row means do not treat the unit as ready. Call an OEM dealer or licensed electrician, relocate, recable or repair.

If you take standby sets out of AUTO for this walk, put them back into AUTO with the generator disconnect closed. They won’t start in an outage if they aren’t. This is Generac’s post-service sequence.

Not a substitute for the OEM or a licensed inspection

The form is above this article. Below the form is the preview and the blank printable PDF. If you need to keep a paper trail in your shop or home, leave a copy with the owners manual. This doesn’t file itself at the building department, utility or fire department.

This is not legal advice. This is not a replacement for a mandated inspection, a licensed electrician, a CO investigation, or the manufacturer’s procedure. Don’t make up Pass/Fail limits not mentioned by the OEM manual, NEC Article 702, EPA, CPSC, Ready.gov. Use the book that came with the machine in your hands.