Published on March 7, 2017 - (Updated on October 22, 2026)
A motorhome, camper or RV is generally split into two parts. The chassis is the structural and mechanical side of the vehicle.
The house is the living space, including the kitchen, bathroom and sleeping areas. The house includes several systems that work together: heating and air conditioning, the water supply and water heater, electrical power and appliances, slideouts, and the overall condition of the interior.
A trained RV inspector checks these systems using an established scope of practice, which gives buyers a clear picture of what a professional review usually covers.
A furnace or air conditioner can turn on and blow air through the vents without actually heating or cooling that air. Because of this, HVAC performance is generally confirmed by measuring the difference between the temperature of the air entering the unit and the air coming out, rather than by confirming that the fan runs.
RV heating and cooling systems often have more than one mode, so a full check covers the modes the specific unit has rather than assuming every RV works the same way.
A professional inspection notes the make, model and general condition of the furnace and confirms that it runs and that its motor works properly. For the air conditioner, an inspection checks a few things.
It checks whether the unit is ducted or non-ducted. A ducted system pushes air through hidden ductwork, while a non-ducted system blows air directly into the room.
The inspection also checks the condition of the filter. It checks whether the plenum, the sealed compartment that carries air from the unit into the ductwork, is properly divided and sealed, and it checks the temperature difference the unit produces.
A basic check of the fresh water system confirms that the water pump runs and builds pressure, that the system holds that pressure, and that the fixtures work correctly. Visible leaks around sinks, the shower or the toilet area can point to plumbing problems.
RV water heaters are commonly built to run on more than one heat source, such as gas and electric, and inspection covers how the unit performs on whichever sources it has. Inspection also covers the general condition of the water heater, confirms that a proper drain plug is in place, and checks for dauber screens, small mesh screens fitted over certain openings to keep insects out.
A professional RV inspection reviews these plumbing and water heater components as part of the full house systems evaluation.
RVs draw power from some combination of shore power (power supplied through an external hookup), house batteries and, on units equipped with one, a generator. An inverter is not itself a power source.
It converts the power stored in the batteries into the type of electricity that household outlets and appliances use. Not every RV has a generator or the same inverter setup, so the power sources available depend on the specific unit rather than a fixed rule.
A professional inspection checks the condition of the breaker panel. It also confirms that GFCI protection is working.
GFCI stands for ground fault circuit interrupter. It is a safety feature that senses when electricity is taking an unintended path, called a ground fault, and cuts power quickly to lower the risk of shock.
The inspection also checks outlet polarity, meaning whether the hot and neutral wires inside each outlet are connected correctly. Where a generator or inverter is installed, the inspection also confirms that these components work properly under load, meaning while actually powering something.
Several appliances are checked as part of the same review:
RVs equipped with slideouts extend extra living space once the vehicle is parked. A slideout should move smoothly, without unusual noise or resistance.
A professional evaluation looks at the type of drive system, how well the slide operates mechanically, the condition of the seals and gaskets, and the condition of the tracking or rack system. Uneven movement or visible wear on the track can point to mechanical issues that need a closer look.
A house-systems review covers the condition of the ceiling, walls, floors, cabinetry, countertops, furniture, doors, drawers, and storage hardware. Discoloration, staining, soft flooring, and earlier repairs can point to water intrusion that is easy to miss in seller photos.
Test Drive Technologies brings more than 25 years of automotive and heavy-equipment experience and more than 8,000 completed vehicle inspections to these evaluations. Steven Paul has inspected motorhomes, travel trailers, campers, and fifth wheels, supported by an NRVIA inspection background and experience with the mechanical, electrical, plumbing, and living-space systems found in RVs.
TDT’s reports can include more than 100 photos, video, diagnostics, and structured condition checks. That level of documentation helps buyers understand how an apparent interior issue may connect to seals, plumbing, HVAC, electrical equipment, or earlier repair work instead of treating each visible symptom as an isolated defect.
Vehicle buyers, including remote and out-of-state buyers, use TDT when seller photos and descriptions do not provide enough evidence about an RV’s true condition. Steven Paul performs the inspection personally, so the buyer receives an independent evaluation rather than a report handed off through a contractor or middleman.
The review brings the house systems together with the rest of the vehicle’s documented condition. The NRVIA Standards of Practice describe this type of inspection as visual and not technically exhaustive, and the findings reflect the condition observed at the time rather than guaranteeing future performance.
For a buyer deciding whether to travel, negotiate, proceed, or walk away, the value is documented condition across the RV’s connected systems. A TDT RV inspection provides that evidence before the purchase decision is final.
Not necessarily. A fan can run while the system fails to actually heat or cool the air, so checking the temperature difference the unit produces is part of a thorough review.
No. Whether an RV has a generator or a particular inverter setup depends on the specific unit rather than a standard configuration used across all RVs.
The chassis is the vehicle’s structural and mechanical side, while the house is the living space, including the kitchen, bathroom and sleeping areas.
Yes. Refrigerator, cooktop and microwave operation are typically included in a house systems review, along with the water heater, HVAC and electrical systems.
No. An inspection reflects the visible and operational condition of the RV at the time it is conducted and does not serve as a warranty or guarantee of future performance.
The ceiling, walls, floors and cabinetry are commonly reviewed for discoloration, staining, soft spots or signs of past repair, all of which can point to underlying water intrusion.
Steven is the CEO of Test Drive Technologies based in St. Louis. When he's not busy inspecting and appraising vehicles, he spends time with his family.
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