Lippert, Schwintek and hydraulic slide-outs: how each fails in Florida and what repairs cost
Almost every slide-out in the Zephyrhills parks is one of three systems, and knowing which you have changes the diagnosis, the parts, and the price. A slide repair on a Pasco County lot can be anything from a fuse up to a $2,500 mechanism rebuild, so we will not put a number on one over the phone before we have seen it.
The three systems
Schwintek in-wall. A motor sits at each side of the slide and drives its own upright gear track, and one controller keeps the pair moving together. You see these mostly on small and mid-size slides, travel trailers above all. Light, compact, and its characteristic failure is losing synchronization: one motor leads, the slide goes crooked, it binds, and if it keeps being run in that state the gear tracks suffer. A resync usually puts it right; what runs up the bill is driving the slide crooked for weeks first. In this climate the tracks also collect the grit that daily rain washes down the sidewall, and the motor heads live in a damp pocket where corrosion on the connector pins is a real cause of one motor dropping out.
Rack and pinion setups usually have one drive motor turning a pinion along a flat rack bolted under the slide floor. Robust, simple, and its failure modes are the motor, the gearbox, a sheared drive pin, or a rusted rack. That last one is the Florida version: a rack under the floor of a rig that sits through a wet summer takes on surface rust, and a rusty rack loads the motor and wears the pinion.
Hydraulic. Bigger slides and most Class A coaches move on a pump pushing fluid through valves and hoses to the rams. What goes wrong is low fluid, a ram or hose that weeps, a valve that sticks, or a tired pump. Hydraulic systems are strong and smooth and they do leak, and a slow leak usually announces itself as a slide that creeps in overnight. Humidity does not bother the fluid, but it does corrode the fittings and the exposed ram rod on a rig that sits for six months.
How each fails, and what it costs
| System | Common failure | Cost |
|---|---|---|
| Any | Low or dead house batteries | Often just the trip fee and an hour |
| Any | Blown fuse or failed switch | $150 to $400 |
| Any | Corroded connector or ground | $150 to $400 |
| Schwintek | Out of sync, slide goes crooked | Resync and adjust, $400 to $1,200 |
| Schwintek | Chewed gear track after running out of sync | $1,200 to $2,500 |
| Rack and pinion | Motor or gearbox | $500 to $1,200 |
| Rack and pinion | Rust-worn rack, sheared pin | $1,200 to $2,500 |
| Hydraulic | Low fluid or a stuck valve | $300 to $900 |
| Hydraulic | Leaking ram or hose | $500 to $2,000 |
| Any | Controller or limit switch | $200 to $600 |
These are the published ranges on the pricing page, plus the $75 to $150 trip fee and $125 to $190 hourly labor.
Power first, always
Whatever the system, we start a dead-slide call by reading battery voltage under load. Slide motors draw heavily, and a bank that sat on a park space from April to November with the converter off, or on a converter that was never asked to float it, will not turn one. A meaningful share of slide calls in November and December are batteries, not mechanisms, and diagnosing in that order saves people a great deal of money. The slide will not move page walks through the ten-minute check.
The second check in this area is the controller. Schwintek and most Lippert systems run through an electronic controller, and a controller is a small circuit board on a rig that sits in the part of Florida with the most lightning in the country. A slide that worked in April and is dead in November, with good batteries and a good fuse, has a decent chance of being a surged controller rather than a motor.
The maintenance that makes them last here
Clean and lubricate the mechanism. A Schwintek track or a gear rack that has had six months of rain and pollen washed into it is running in an abrasive paste. Few owners ever have it cleaned and relubed with the product their system calls for (dry lube on some, grease on others), and that job costs very little. Using the wrong lubricant holds moisture against the metal and makes it worse, which is why “what do I spray on it” is a question worth asking rather than guessing.
Do not fight a binding slide. The moment it stalls, take your finger off the switch. A $500 motor job turns into a $2,000 gear job when the motor keeps pushing against a jammed mechanism.
Run it monthly, even if the rig is parked. Mechanisms that sit seize, and in humid air they seize faster. If you are north for the summer, this is the single best thing a neighbor or a park handyman can do for your rig.
Condition the seals and check the topper. Not a mechanism item, but in this climate the slide seals are the other half of owning a slide. A topper that sags and holds water, a bulb seal that has gone flat, or a floor gasket that has cracked lets rain into the wall cavity, and the wall cavity is where mold and delamination start. The seals are cheap. What they protect is not.
Know your manual override
All three have a way to move the slide by hand, and ten minutes spent locating yours on a quiet afternoon pays off later. On a Schwintek, a hex extension fits into the motor head. On rack and pinion, look underneath for the crank point. On hydraulic, the bypass is on the pump. It is slow work and it is not a repair, but it will get a rig road-legal on a Saturday, or get a slide in ahead of a tropical storm warning when the motor has quit. Find yours on a calm day, not in the rain.
The slide-out repair service page covers what a resync or a motor swap looks like at your space. We handle slide calls at park spaces, storage lots, and driveways across Zephyrhills, Dade City, Wesley Chapel, San Antonio, Land O’ Lakes, Lutz, and Plant City.
Frequently Asked Questions
How do I tell which slide system I have?
Look at the sides of the slide opening. If you can see upright toothed tracks running down both sides of the slide box, it is a Schwintek in-wall. A flat toothed rack below the slide floor means rack and pinion. Hydraulic slides use rams and a pump, usually in a bay, and they are common on larger slides and Class A coaches.
What does a Lippert slide motor cost to replace?
$500 to $1,200 for a motor swap on an otherwise healthy mechanism. If the rack, the gears, or the sync need rebuilding, we price that at $1,200 to $2,500. Fuses, controllers, and limit switches are often just the trip fee plus part of an hour.
Why does my Schwintek slide go crooked?
The two motors have lost synchronization, which is the characteristic Schwintek fault. With one motor running ahead of the other, the box twists in the wall opening until it jams. It is usually recoverable with a resync procedure and adjustment, but a slide that has been run hard while out of sync can chew the gear tracks.
Why does my slide leak in the rain when the mechanism is fine?
Because the seals and the topper are a separate system from the motor. Bulb seals and wiper seals go flat and stop sealing, the topper fabric sags and holds a pool of water against the top seal, and the slide floor gasket cracks. Zephyrhills gets over six inches of rain in July alone, so a flat seal gets tested daily. That is a seal job, not a mechanism job, and it costs a great deal less.
What we do in Zephyrhills
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Zephyrhills Mobile RV Repair