Schwintek Slide-Out Motor Replacement
Coast to Coast RV Repair provides mobile schwintek motor replacement service on-site at your campground or driveway across Florida - certified technicians, same-week scheduling.
Coast to Coast RV Repair provides mobile schwintek motor replacement service on-site at your campground or driveway across Florida - certified technicians, same-week scheduling.
Certified technicians. $299 service call. Same-week scheduling. Call (866) 887-1199.
Schwintek In-Wall Slide System - How the Motor Actually Fails
The Lippert Schwintek system drives slides using two synchronised gearmotors that ride inside aluminum rails mounted to the slide-room walls. Each motor carries Part #376862 (18:1 ratio) for rooms up to 750 lb or Part #376863 (26:1 ratio) for heavier full-wall rooms. The most common failure pattern is brush wear accelerated by moisture. When the upper rail corrodes it drops aluminum oxide grit directly onto the motor housing. That grit scores the brush contacts, raises resistance, increases heat, and eventually shorts the armature windings. A shorted armature draws 150 to 200 percent of rated current, triggers the circuit breaker repeatedly, and produces the characteristic burning insulation smell owners describe.
No-Load Current Test - The Diagnostic That Separates Motor from Rail Problems
Replacing a Schwintek motor without first confirming it is the failure source is the single most common unnecessary expense in slide repair. A healthy Schwintek 18:1 motor draws 7 to 10 A at 12 V DC under no load and 15 to 22 A under a normal room load. Testing procedure: disconnect the motor coupler from the rack, connect a Fluke 376 clamp meter to the positive motor lead, and apply 12 V from a known-good supply. A reading above 12 A with no mechanical load indicates internal armature damage. A reading below 10 A means the motor is healthy and the problem is in the rail, rack, or synchronization harness.
Replacement Motor Options and OEM vs Aftermarket Comparison
Lippert OEM Schwintek motors carry a 12-month warranty and are built to exact rail tolerance specifications. Aftermarket alternatives use softer brass pinion gears that show accelerated wear in sand and grit environments common to Florida campgrounds. The LCI OEM unit has a machined steel pinion and uses sealed bearings rated to 2 million cycles versus approximately 800,000 cycles for brass-pinion aftermarket units. Coast to Coast RV Repair installs OEM Lippert motors exclusively for Schwintek systems.
Also see: Slide-Out Repair Services
This page covers schwintek motor replacement specifically. For the full range of slide-out repair services we offer, visit our Slide-Out Repair service overview.
Case Study: Lippert Schwintek 18:1 gearmotor (Part #376862) armature winding shorted internally after debris from a corroded upper rail scored the motor housing and allowed moisture ingress at the brush plate
RV: 2018 Newmar Canyon Star 3513 • Location: Encore Fort Pierce • City: Fort Pierce, FL
Symptom: The living-room slide extended halfway then stopped dead with a high-pitched electric whine; repeated presses of the wall switch produced a brief buzz and a burning-plastic smell near the motor bracket
Diagnosis: No-load current draw measured 14.8 A at 12 V DC against a rated 9 A - confirming armature short; rail binding ruled out because slide moved freely by hand with motor coupler disconnected
- Disconnect power: Isolated all power sources before accessing the in-wall motor cavity
- Remove access cover: Extracted four T-25 Torx screws securing the Schwintek motor mounting plate
- Bench-test motor: Measured 14.8 A no-load draw versus 9 A spec - confirmed internal short
- Inspect rail: Found corrosion track on upper aluminum rail; cleaned and applied Slide-Out Lube
- Install replacement: Torqued motor-to-bracket bolts to 35 in-lb per Lippert service bulletin LCI-SB-2019-003
- Cycle slide: Monitored current draw each cycle: settled to 8.6 A by third cycle
- Seal access cover: Applied Sikaflex 221 bead around access plate perimeter to prevent future moisture path
Outcome: Slide operates silently at 8.6 A draw. Owner back on schedule for a 12-night stay without losing any reservation days.
Time on-site: 2 hours 10 minutes • Total cost: $487 • Dealer alternative: $1,100 - $1,400 at a Newmar-authorized service center with a 3-week wait
“I thought we were going to have to cancel our whole trip. The tech showed up within two hours, had the motor in the truck, and we were cooking dinner in the slide that night.”
Schwintek Motor Options - OEM vs Aftermarket
| Motor | Part Number | Gear Ratio | Rated Current (No Load) | Pinion Material | Warranty | Retail Price |
|---|---|---|---|---|---|---|
| Lippert OEM 18:1 | #376862 | 18:1 | 7-9 A | Machined steel | 12 months | $145 |
| Lippert OEM 26:1 | #376863 | 26:1 | 8-10 A | Machined steel | 12 months | $162 |
| Carefree Colorado 901090 | 901090 | 18:1 | 7-9 A | Brass pinion | 6 months | $89 |
| Slide-Out Solutions SOS-18R | SOS-18R | 18:1 | 7-10 A | Brass pinion | 6 months | $95 |
| Lippert OEM (post-July 2020 -A suffix) | #376862-A | 18:1 | 7-9 A | Upgraded machined steel | 12 months | $152 |
Signs You Need Schwintek Motor Replacement
- ✓Measure motor no-load current draw before ordering any parts - anything above 12 A confirms internal armature damage
- ✓Inspect full length of both upper and lower rails for corrosion scoring before installing a new motor
- ✓Apply Camco Slide-Out Lube (Part #41105) to the full rack length after any rail cleaning
- ✓Verify synchronization harness connector pins are not corroded - green oxidation on pins raises resistance and causes one-side binding
- ✓Torque motor-to-bracket bolts to 35 in-lb per Lippert service bulletin LCI-SB-2019-003
- ✓Cycle the slide five times after installation and log current draw on each cycle to confirm stabilization
Schwintek Motor Replacement - Pricing
Typical price range: $385-$685
All calls start with a $299 service-call fee that covers the technician's trip to your location and the first hour of diagnosis. That $299 applies toward any repair you authorize - it is not an additional charge on top of the repair. Pricing shown is a national average range; your exact quote is provided in writing on-site before any work begins.
Schwintek Motor Replacement - Common Questions
Straight answers from our schwintek motor replacement service call log.
How do I know if my Schwintek motor is bad or if it is the rail?
Disconnect the motor coupler from the rack so the motor spins freely, then measure current draw with a clamp meter. Under 12 A with no load means the motor is good - your problem is in the rail or synchronization harness. Over 12 A with no load confirms internal motor damage.
Can I replace just one Schwintek motor or do both need to go at the same time?
You can replace one motor. However, if one has failed from moisture or grit damage, the other has likely experienced the same environment. We inspect both during the service call.
What is the difference between the 18:1 and 26:1 Schwintek motor?
The 18:1 handles slide rooms up to approximately 750 lb. The 26:1 is used on heavier full-wall rooms and bedroom slides exceeding 750 lb.
How long does a Schwintek motor replacement take on-site?
One motor: 60 to 90 minutes. Both motors in the same visit: 90 to 120 minutes.
My slide stopped mid-travel and will not move at all now - is it safe to manually retract it?
Only if you use the Schwintek manual override rod through the motor access port - do not push the slide room by hand without decoupling the motors first.
More Slide-Out Repair Services
Other specialized repairs under slide-out repair - all done at your location, no tow required.
Where We Provide Schwintek Motor Replacement in Florida
Coast to Coast RV Repair runs schwintek motor replacement jobs across these cities. Click your closest one for local-specific info, response times, and campground coverage.