CrappyRV Walk-Through

The Pre-Purchase Inspection Checklist

Systems-organized. Roughly 2 hours if you actually run every test. Print it. Bring it. Check every box.

This is the inspection a competent buyer should run before they sign. It's not a substitute for a certified RV inspector (recommended for any RV over $50K) — but it's the minimum you should run yourself. If a dealer won't let you do this, that's your answer.

Bring with you Phone (camera + flashlight), notepad, this printed checklist, a multimeter if you own one, a small mirror (for checking under things), and someone you trust. Allocate 2–3 hours. Schedule it — don't try to do it on a busy showroom day.

1. Exterior & Structure

Time: 25 minutes · 14 items
  • Roof inspection. Get up there (or have the dealer get up there) and photograph every penetration. Look for sealant cracks, lifting, soft spots underfoot. Roof leaks are the #1 RV killer.
  • All seams and sealants. Windows, slides, every joint. Press around them with your finger — anywhere that feels soft is rot.
  • Tire date codes (DOT codes). Look at the sidewall — last 4 digits are week + year of manufacture. Tires more than 5 years old need replacing regardless of tread.
  • Tire tread & pressure. Tread depth, uneven wear (alignment issue), pressure matches the sidewall rating.
  • Hitch / kingpin (towables). No cracks, no excessive wear, tongue jack works smoothly.
  • Stabilizers / leveling jacks. Extend each one fully. Listen for hydraulic whine. Look for fluid leaks underneath.
  • Slide-out seals. Run a finger around every seal. Soft, flexible, no tears, no daylight visible.
  • Underbelly. Get on your back and look. Tape, rips, dangling wires, exposed plumbing all = problems.
  • Awning. Extend it. Retract it. Look at the fabric, the arms, the motor.
  • Exterior storage doors. Every one opens, latches, doesn't catch.
  • Steps / entry. Steps extend, retract, no wobble at the top step (very common issue).
  • Generator (if equipped). Start it from cold. Let it run 10 minutes under load. Listen for surging or rough idle.
  • City water connection. Hook up a hose. Check for leaks at the inlet and the water filter housing.
  • Sewer connection. Open and close the valves. The handle should move smoothly. Sniff — old sewer-valve odors mean dried seals.

2. Interior — Living Spaces

Time: 25 minutes · 13 items
  • Floor walk. Walk every square foot. Listen for squeaks. Feel for soft spots (water damage indicator) — especially around the entry, under windows, around the toilet.
  • Slide-outs extend / retract. Run each slide all the way out and all the way back in. Listen for grinding, look for binding.
  • Slide-out alignment. When fully extended, the slide should be flush with the wall. Any noticeable tilt = adjustment needed.
  • All cabinet doors and drawers. Open every one. Drawers slide smoothly. Doors close flush. Hardware tight.
  • All windows. Each one opens, closes, latches, and the screen functions. Look for fogging between panes (failed seals).
  • Blinds and shades. Operate every one. Day/night shades especially — broken cords are common.
  • Interior lights. Test every fixture. Note any out, dim, or flickering.
  • USB and 12V outlets. Test with a phone or charger. Several should be at the dinette, beds, and over counters.
  • 110V outlets. Test each one with a plug-in outlet tester (the $5 kind with three lights). Reverse polarity is shockingly common.
  • TV / entertainment. Power on, check inputs, antenna boost, satellite jack (if applicable).
  • Ceiling vents. Operate each one. The fans should run, the rain sensor should function.
  • Smoke / CO / LP detector. Press the test button on each. They must work.
  • Fire extinguisher. Present, in-date, mounted properly.

3. Plumbing System

Time: 20 minutes · 11 items
  • Connect to city water. Run water through every fixture for 60 seconds: galley sink, bathroom sink, shower, toilet.
  • Hot water. Turn on the water heater (electric and gas modes if equipped). Wait 20 minutes. Hot water should reach every fixture.
  • Toilet flush. Multiple flushes. Watch the seal — it should hold water in the bowl between flushes.
  • Shower flow and drain. Run for 2 minutes, then check the gray tank fill rate is reasonable.
  • Galley sink drain. Should flow without bubbling back up.
  • Water pump. Disconnect city water, switch to the freshwater tank, run the pump. Should cycle on/off cleanly, not constantly.
  • Black tank monitor. Read all four tank levels on the panel.
  • Outdoor shower (if equipped). Hot and cold both work.
  • Low-point drains. Locate them. Verify they close fully.
  • Water filter. Confirm there is one, confirm the housing isn't leaking.
  • No leaks anywhere. Use your phone flashlight to check under every sink, behind the toilet, around the water heater.

4. Electrical System

Time: 20 minutes · 10 items
  • Shore power connection. The cord, the inlet, the breaker panel. No scorch marks, no warm spots after 30 minutes of use.
  • Battery voltage. 12.6V or higher at rest (lead-acid). 13.0V+ for lithium. Read it on the panel or with your multimeter.
  • Converter / charger. When on shore power, batteries should be charging. Look for the charging indicator.
  • Inverter (if equipped). Switch on. Confirm 110V is available at the inverter outlets.
  • Solar (if equipped). Verify the controller is wired and reads input on a sunny day. Note the panel age — older solar is often dirty.
  • Generator transfer. Run the generator, confirm it powers the 110V circuits, then transfer back to shore.
  • All breakers labeled. Every breaker in the panel should have a clear label. Trip-test the main and one or two branch breakers if the dealer will allow it.
  • GFCI outlets. Test the GFCI button on every outlet that has one (galley, bathroom, exterior).
  • Battery disconnect switch. Operate it. Hear the click. Lights should die.
  • Surge protector / EMS. Most RVs don't ship with one. Plan to buy one ($300) before you take delivery.

5. Propane & HVAC

Time: 15 minutes · 8 items
  • Propane tank(s). Quantity, level, hookup tight, regulator visible. Note the manufacturer date stamp — tanks expire every 10–12 years.
  • Propane shutoff valves. Operate them. Both directions.
  • Stove burners. Light each one. Watch the flame color — blue = good, yellow = check.
  • Oven (if equipped). Light it, watch it reach temperature.
  • Refrigerator. Run on shore power and on propane. Confirm both work. Door seals tight.
  • Air conditioner. Run for 20 minutes minimum. Check temperature differential at the vents (should be 18–22°F colder than ambient).
  • Furnace. Cycle it on. Listen for ignition. Confirm hot air at the floor vents.
  • Thermostat. All modes (auto, cool, heat, fan, off) operate correctly.

6. Documentation & Paperwork

Time: 15 minutes · 8 items
  • VIN matches title, registration, and sticker. All three.
  • Owner's manuals. RV itself plus every component (fridge, AC, water heater, slides, awning). Often missing — request them.
  • NHTSA recall check. Print the current recall status for this VIN.
  • Build date sticker. Photograph it.
  • Warranty documents. Manufacturer + every component. In your hand.
  • PDI checklist. Signed by service, with technician name and date.
  • Itemized price sheet. Every fee, charge, and option in writing before you go to F&I.
  • Service department contact. Direct phone, named service writer, GM name and contact.
If a dealer pushes back on any of this You've learned something. A dealer that doesn't want you running this inspection is a dealer that knows what you'd find. That's not the dealer you want to buy from.

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About this checklist: Not a substitute for a certified RV inspector. For RVs over $50K, recommended to hire an NRVIA-certified inspector ($400–$800) in addition to running this checklist yourself. Last updated: May 2026.