# Plumbing, Appliances and HVAC > Water systems, waste tanks, heaters, fixtures, refrigerators, roof air and furnaces diagnosed and repaired in shop rather than patched in place. Source: https://ocrv.info/services/plumbing-appliances-and-hvac Livability systems fail in clusters. A pinhole leak behind a shower pan soaks a floor, the floor rots, the toilet flange loses its footing and the seal starts weeping. A refrigerator that will not cool on propane turns out to share a failing control board with the water heater. Owners usually arrive naming one complaint, and a careful walkthrough of the coach almost always adds two or three related findings that are cheaper to fix during the same teardown. This shop takes water intrusion seriously because Southern California humidity hides it. A slow leak in a wall cavity does not announce itself with mold the way it would in a wetter climate. It quietly delaminates a sidewall over two seasons instead. Any plumbing complaint gets a moisture survey around the affected area, and any soft spot found gets documented with a reading rather than a description, so the owner can decide with real information. Appliance and climate work follows the same logic. A roof air that cannot hold temperature might have a failing capacitor, a restricted evaporator, a collapsed return duct or a gasket that has flattened enough to recirculate its own cold air. Guessing costs more than measuring. Coaches come in from Eastvale by way of SR-71 and SR-91, and they stay until the system has been tested at load rather than tested at idle. ## Why Livability Systems Get Repaired Together Water, waste, heat and refrigeration share cavities, share propane supply, share twelve volt control circuits and frequently share a single access panel. Pulling a water heater to replace a leaking tank puts the propane manifold, the exterior door seal, the mounting flange and the adjacent wall structure directly in view. Inspecting all of it during one teardown costs a fraction of what returning for each item separately costs, and it prevents the second visit that owners resent most. The propane side illustrates the point well. A regulator that has drifted low will make the refrigerator cool poorly, the furnace cycle on flame failure and the water heater burn with a lazy yellow flame, all at once. Three appliance complaints, one regulator. Testing manifold pressure before opening any appliance is standard practice here, because it either eliminates a common cause or explains everything the owner reported in a single measurement. - Propane manifold pressure tested before any appliance is opened - Moisture readings taken around every plumbing complaint - Shared access panels used once rather than opened repeatedly - Twelve volt supply verified at each appliance control board - Findings documented with readings, not descriptions ## Scope, Facility and How the Work Is Handled Everything in this category is performed inside the 35,000 square foot facility in Yorba Linda. Water systems are pressure tested on a bench where possible and in place where necessary, tanks are dropped on a lift rather than reached through an access hatch, roof units are pulled and set on a stand for evaluation, and refrigerators come out of their cavity so the cooling unit and the flue can actually be examined instead of guessed at. Sanitizing, pressure testing, leak detection with dye or air, combustion analysis on propane appliances and refrigerant pressure readings on compressor systems are all part of normal verification. Owners receive the numbers. Published price bands for each service in this category appear on the individual pages and on the prices page, and RV systems estimates carry a posted charge that is credited toward authorized repair work. ## Services in this category - [Fresh Water System Repair](https://ocrv.info/services/plumbing-appliances-and-hvac/fresh-water-system-repair): Supply side repair covering pumps, lines, fittings and tanks, with air pressure testing to find losses a running pump would mask. Range $285 to $4,500, 1 to 18 hours. - [Waste Tank Repair](https://ocrv.info/services/plumbing-appliances-and-hvac/waste-tank-repair): Black and gray tank replacement, valve and flange repair, vent correction and sensor work performed with the assembly dropped on a lift. Range $750 to $8,500, 5 to 35 hours. - [Water Heater Service](https://ocrv.info/services/plumbing-appliances-and-hvac/water-heater-service): Burner, igniter, thermostat, anode and bypass work across tank, tankless and hydronic units, with combustion checked rather than assumed. Range $350 to $4,500, 1 to 18 hours. - [Toilet, Sink and Shower Repair](https://ocrv.info/services/plumbing-appliances-and-hvac/toilet-sink-and-shower-repair): Toilet, faucet, shower valve and drain work, including flange and pan repairs where a fixture leak has reached the floor structure. Range $200 to $1,500, 1 to 6 hours. - [Refrigerator Service](https://ocrv.info/services/plumbing-appliances-and-hvac/refrigerator-service): Absorption and compressor refrigerator diagnosis covering cooling units, burners, boards, ventilation and the power feeding them. Range $400 to $4,500, 1 to 18 hours. - [Air Conditioner Service](https://ocrv.info/services/plumbing-appliances-and-hvac/air-conditioner-service): Roof air and ducted system repair covering capacitors, motors, coils, gaskets, ducting and startup current, tested at measured temperature split. Range $750 to $4,500, 2 to 14 hours. - [Furnace and Heating Repair](https://ocrv.info/services/plumbing-appliances-and-hvac/furnace-and-heating-repair): Propane furnace and cabin heat repair covering blowers, sail and limit switches, igniters, gas valves, ducting and thermostat control. Range $350 to $2,500, 2 to 10 hours. ## Frequently asked questions ### Can several appliance problems be handled in one visit? That is usually the most economical approach. Water heater, refrigerator and furnace complaints often share a propane supply issue or a twelve volt control fault, and they frequently share access panels. Bringing the whole list at once lets us test the common causes first and open each cavity once. Scheduling them separately means paying for the same teardown two or three times. ### How do you find a leak that only appears sometimes? Intermittent leaks are usually pressure dependent or motion dependent. We pressurize the fresh water system with air and hold it, which reveals losses that a pump cycling test hides. For waste and drain lines we use dye or smoke depending on the configuration. Moisture meter readings across the surrounding cabinetry and floor then show where water has been traveling even after the surface dried. ### Do you work on residential style appliances installed in coaches? Yes. Residential refrigerators, compressor driven twelve volt refrigerators, tankless water heaters, hydronic systems such as AquaHot, washer and dryer combinations and ducted basement air conditioning all come through here. Those installations put different demands on the electrical system, so we usually check inverter capacity, bank size and circuit protection alongside the appliance itself. ### How far is the shop from Eastvale and is the work performed in shop? The facility is at 23281 La Palma Ave in Yorba Linda, roughly twenty miles from Eastvale by way of SR-71 south to SR-91 west. All plumbing, appliance and climate work happens in shop. Nothing in this category is performed at a customer location. Simple fixture jobs often finish in a day, while tank replacement and water damage work take considerably longer. ### What happens if you find water damage while repairing a leak? We stop and document it before continuing. Moisture readings, photographs and a description of the affected structure go to the owner along with a revised scope, because delaminated sidewall or rotted floor decking is a structural repair rather than a plumbing repair. Nothing gets closed up over wet material. The owner decides whether to proceed, and the plumbing repair can be completed either way. --- OCRV Center. 23281 La Palma Ave, Yorba Linda, CA 92887. (949) 799-3387. info@ocrvcenter.com. Serving Eastvale, California in Riverside County, about 20 miles from the shop. All work is performed in shop at the Yorba Linda facility. No mobile, roadside or on-site service is offered. Scope is body, paint, structural, fiberglass, interior and vehicle systems work. Engine rebuilds, transmission rebuilds, drivetrain work, DOT inspections and emission testing are not performed.