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It seems that the floor of the upper deck of our 2013 Landmark San Antonio is slowly falling out of the trailer. Viewed from the outside, the fiberglass covering the underside of the overhang is gradually being pushed away from the sidewalls. On the curb (door) side, it has pushed the edge trim...

The electrically-operated bedroom slide on our 2013 Landmark does not have a wiper seal on the bottom. You can see right into the gap between the slide and the body, up to the interior seal. The other three slides (all hydraulic) all have bottom wiper seals. Shouldn’t there be one on the...

A few days ago, the front landing gear on our 2013 Landmark began to sink. They dropped 7 inches from level overnight. The rear and middle jacks extended as the front dropped, so all six of the Lippert Level-Up pads were on the ground. I found a small puddle of hydraulic fluid in the front...

The furnace blower on our 2013 Landmark (built in 2012) runs for 10-15 minutes (during which the furnace produces heat), but I can hear it gradually slowing down, and the volume of warm air from the vents decreases. Eventually the blower stops completely, even though the temperature at the...

A few years ago I solved the “popping” sound problem with my Lippert Level-Up system by adding CAT Hydraulic Oil Additive anti-stiction fluid. It took 2 quarts, but the problem was almost eliminated. About six months ago, the popping noise returned. Lippert recommends changing the hydraulic...

I have a Cummins Onan RV QG 5500 Marquis Gold propane generator (model HGJAB) installed in our 2013 Landmark. The generator is consuming about one quart of oil for every 40 hours of operation. Most of the time it's running, it's under about an 80% load (~35-37 amps), although the actual load %...

We have a 2013 Landmark San Antonio. One of the side wiper seals on our bedroom slide has torn away at the top of the seal. (The photo posted rotated 90 degrees, so "top" is to the left.) It looks like the bracket holding the seal is riveted to the slide out opening in the body. If so, that...

As I was starting to troubleshoot an intermittent Level-Up/slide-out problem, suspecting a weak breaker, I noticed what looks like some odd wiring on the bank of mini circuit breakers. This is in a 2013 Landmark San Antonio. Can anyone tell me what accessories each of these breakers powers? I...

When we bought our 2013 Landmark (used), it had a few rock pits in the lower part of the front, on either side of the generator door. After 6,500 miles of towing in Alaska this summer, it has more. A LOT more. And some of them are pretty deep, so I think I need to do something to fill in the...

We have an ACR-2 automatic changeover propane regulator. After filling both tanks (both were disconnected at the same time), the following happened: the regulator shows the red "empty" flag for both tags, regardless of the position of the selector lever we can smell propane outside the rig...

Our trailer tires aged out, so we decided to upgrade them to Load Range H G114s, which also necessitated new wheels. When I went to change the wheels, I discovered that one of the wheel studs is badly damaged. It looks like it was over-torqued when I had my new Titan disc brakes installed just...

This is kind of a long set-up, but I wanted to provide as much information as possible to help troubleshoot this mystery. Some months ago, I pulled a brand new circuit from our Progressive Dynamics PD60 12v power distribution center to our nearby tech cabinet, which houses our WiFiRanger router...

Does anyone know why there is a lock on the door to the power cord reel compartment on the Landmarks? I find this terribly inconvenient every time I'm setting up at a new campsite or putting the cord away. It's the only task for which I have to have my keys handy. Has anyone replaced this...

One of our two Dometic Comfort Control Center 2 thermostat occasionally "locks up". The display is on and all looks normal, but nothing happens when I press any of the buttons other than the on/off button. Once I switch the thermostat off and back on, it works properly. It does not seem to...

We just got our Landmark out of the shop after its annual service, which included repacking the bearings and inspecting the drum brakes, which were fine. We do a "tug test" every time we hitch up, to test both the integrity of the hitch coupling and the trailer brakes. Normally, when I hold the...

I replaced the stock Lippert 1621-HD pin box on my 2013 Landmark with a new MORryde Rubber Pin Box. Unfortunately, the nice streamlined plastic shroud that covered the stock pin box does not fit over the front of the much wider MORryde pin box. Does Heartland sell a replacement shroud that is...

I had to do this myself yesterday. While I was able to locate some vague hints that pointed me in the right direction, I couldn't find specific instructions, and it took a bit of trial and error. So I hope this step-by-step guide helps someone else out in resolving this common problem. The high...

I'm thinking about getting a 12v light strip like this one from PPL for my 2013 Landmark (made before the line included factory-installed lights). I plan to install it on the side of the rig, right below the power awning, so that I can use it whether the awning is open or closed. It looks like...

Our 2013 Landmark San Antonio has a hide-a-bed with an air mattress with a built-in electric inflation pump. The pump has a dial with three settings, Inflate, Deflate and Off. When the dial is set to Off, the mattress sometimes, but not always, slowly leaks air through the valve in the center of...

Somewhere on the interwebs--I think it was here on the HOF, but for the life of me I can't find it--I remember reading about a guy in the DFW area who specializes in installing laminate wood and luxury vinyl tile in RVs. Supposedly, he was "the best", whatever that means, but several owners...

When we make a tight turn with our rig, the suspension makes loud popping and creaking noises. It sounds terrible, but I assume it's just from the side forces on the dual axles. Is this normal, or something I should be concerned about?

I just discovered J-B Weld WaterWeld Epoxy Putty, and it's something that should be in every RVer's toolbox for fixing water leaks. WaterWeld comes as a stick of putty-like material, with the two components separated. You cut off the amount you need, knead it well to mix the two components, and...

We have a Cummins Onan 5500 series generator with one 30 amp and one 20 amp breaker. The 20 amp breaker trips frequently when more than one appliance (e.g., the microwave and the coffee maker, or the coffee maker and the 120v water heater) are on, even when there's nothing else drawing current...

I think I've diagnosed a bad water pump on my Landmark, but I wanted to see if I've missed anything before I go out and buy one. Symptom: the pump runs continuously, but there is little or no water at the faucets. It worked properly last year. This is the first time I've tried to use it since...

I want to add a branch circuit to my 2013 Landmark San Antonio. This will simply be a busbar in the cabinet above the control panel, to which I plan to connect a WiFiRanger Go2 router and a Verizon JetPack. I can easily access the 12v distribution panel from the cabinet location to run wires...

I need to add a 12 volt receptacle in the bedroom of my 2013 Landmark San Antonio, to be able to power a CPAP machine while dry camping. The most logical place to put it, I think, would be in the wooden frame of the bed. The bed is in a slide-out, and the entire frame moves in and out with the...

I discovered a puddle of water in my Landmark's basement, and traced it to a steady drip from the hot water outlet on the back side of the heater. See the attached photo. I've tightened the white compression nut, but that didn't help. It actually doesn't appear that the water is dripping from...

Hi everyone. I'm getting ready to order a dual jumbo canister water filter system from RVWaterFilterStore.com. I want to mount it in the equipment bay of our 2013 Landmark San Antonio, behind the UDC and water heater. There is plenty of space in the bay, but no open wall space on which to mount...

Quick question: is the PEX tubing under the lavatory sink 1/2" OD or 3/8" OD? I need to buy some fittings, I forgot to measure, and my rig is 15 miles away. :( I have a 2012 Landmark - if anyone who has a Landmark about that age can tell me, even better. Thanks!

We just got a 2013 Landmark San Antonio...we'll be using it only occasionally for the next year or so. Here's a newbie question on winterization: if you drain the fresh water system, including the hot water heater, and all the holding tanks, do you still need to put antifreeze into the system...