David Marshall

Your RV floor can be wet without a visible leak because water often travels through walls, framing, insulation, cabinets, or flooring layers before appearing. The actual source may be several feet away from the wet area. Hidden plumbing seepage, exterior seal failures, condensation, appliance drainage, and trapped underbelly water are common causes. I’ll help you […]

A small amount of fifth-wheel pin-box movement can be normal. Hitch heads pivot, cushioned pin boxes flex, and mechanical connections need limited clearance. However, movement between the pin-box mounting plates and trailer frame is not normal. This guide will help you identify where movement originates. You will also learn what to inspect, when to stop

Your RV corner trim usually pulls away because vibration loosens its screws, the sealing tape deteriorates, or moisture rots the backing underneath. Temperature changes, highway wind, corrosion, and previous repairs can also weaken the joint. This guide will help you identify the cause, inspect hidden damage, repair the trim correctly, and prevent the problem from

An RV slide floor gets wet while closed when water bypasses damaged seals, enters around tracks or exterior trim, or wicks beneath an exposed floor edge. Water can also enter when a wet slide retracts or when poor alignment prevents the exterior bulb seal from compressing evenly. I’ll help you identify where the water enters,

Your RV underbelly is usually sagging because water, wet insulation, or loose fasteners are weighing it down. Wind damage, failed tank supports, stretched material, and missing cross braces can also cause the covering to bow or hang lower than normal. This guide will help you identify the cause, inspect the area safely, repair the damage,

An RV air conditioner drips water inside when condensation cannot drain outside correctly. Common causes include clogged drain openings, a dirty filter, frozen evaporator coils, a damaged roof gasket, poor installation, excessive humidity, or condensation forming around poorly sealed ductwork. This guide will help you identify where the water originates. I will also walk you

Your RV water heater works on gas but not electric because the electric heating circuit has failed or lost power. Common causes include a tripped breaker, an overlooked switch, a burned heating element, a failed relay, or damaged wiring. This guide walks you through each likely cause in order. You will learn what to check

An RV refrigerator may cool properly at night but warm during the day because daytime heat overwhelms its cooling capacity. Direct sunlight, restricted exterior airflow, poor baffling, and high interior temperatures can trap heat behind the refrigerator faster than it can release it. This guide will help you identify the cause, make practical improvements, and

An RV furnace that lights and then shuts off usually has a flame-sensing, propane, airflow, overheating, or low-voltage problem. The control board stops the burner whenever it cannot confirm safe operating conditions. I’ll help you identify the cause using shutdown timing, sounds, airflow, and simple checks. We’ll start with safe inspections before moving toward technician-level

Yes, an RV furnace can drain the battery overnight. Propane creates the heat, but the blower motor, thermostat, ignition system, gas valve, and control board all rely on 12-volt battery power. In this guide, I’ll help you estimate furnace consumption, identify excessive battery drain, test your system, and keep the heat running through cold nights.