What happens when your RV jack motor fails?
A dead or failing jack motor means your leveling system won't work at all - or works halfway. Your hydraulic jacks extend and retract because an electric motor drives a hydraulic pump. That pump builds pressure.
When the motor burns out, the pump has no power. You get no up, no down, no level.
HWH systems use a 12-volt DC motor; Lippert Level-Up uses a similar but different unit. Symptoms show up fast: jacks hum but don't move, or one jack works while others stall.
We've serviced over 12,000 RVs in 15 years, and jack motor failure is one of the top five leveling-system calls we get. Cost to fix runs $450 - $850 installed, depending on whether you need the motor alone or a full pump assembly.
We recently diagnosed a Forest River R-Pod owner in Tampa whose rear jacks wouldn't retract. The motor was spinning - she could hear it - but no pressure built.
Turned out the HWH motor was seized internally. We replaced the entire motor unit (not just rewinding it), bled the system, and tested all four jacks.
Took 2.5 hours. Same week, a Winnebago View owner in Boise had one jack on his Lippert Level-Up that moved slower than the others.
Motor was on its way out - voltage drop under load. We swapped it before it died completely. Proactive move that saved him a roadside breakdown.
Signs your jack motor is failing:
- Jacks won't extend or retract at all
- One jack moves but others don't
- Motor hums but jacks stay still
- Slow or sluggish jack movement
- Grinding noise from motor housing
- Electrical burning smell near pump
- Voltage drop under load (testing reveals this)
How we diagnose a bad jack motor before we touch it
Diagnosis starts with a voltmeter and a load test - not guesswork. We check 12-volt power at the motor connector first. No juice = wiring problem, not the motor.
Full voltage present? We apply current and listen.
A good motor spins free and builds immediate hydraulic pressure (you hear the jacks hiss). A bad motor draws excessive amp load, spins slow, or doesn't spin.
We also check the control board sending the signal - a failed board can look like motor failure. HWH boards and Lippert Level-Up boards have different failure modes.
HWH boards fail at relay contacts; Lippert boards sometimes fail at capacitor banks. On-site diagnosis takes 20 - 30 minutes.
We don't sell parts you don't need. If the motor is salvageable (rare), we tell you. If it's dead, we quote the swap and move forward.
A Jayco Redhawk owner in Jacksonville thought his motor was toast. All four jacks stuck.
We tested voltage at the motor - nothing. Pulled the control board.
Found a burnt relay contact. $120 board replacement, everything worked again. He avoided a $600 motor swap.
That's the kind of diagnosis that saves you money. Another scenario: Grand Design Momentum owner in Coeur d'Alene, Lippert Level-Up system, jacks move but won't lock in place.
We tested motor, tested board, then found the hydraulic lines had internal debris blocking flow. Motor was fine.
Flushed the system, replaced the filter. $280 total. Wrong diagnosis would have cost him double.
Our diagnostic checklist:
- Measure 12V DC at motor connector
- Listen for relay click at control board
- Spin motor by hand - feel resistance
- Run jacks - observe pressure buildup
- Check control board for burned components
- Inspect hydraulic lines for kinks or blockage
- Test sensor signal if equipped (HWH models)
Jack motor replacement - what we do and how long it takes
Motor replacement is a 2 - 4 hour job depending on your RV's layout and which system you own. We disconnect power at the battery first. Then we drain (or relieve) hydraulic pressure - critical step.
Next, we unbolt the motor from the pump assembly, unplug the electrical connector, and swap in the new unit. We top off hydraulic fluid (Lippert and HWH systems use different spec oils - we use the right one).
Then we bleed air from the lines, test all four jacks, and check for leaks. HWH motors are easier to reach on most Class A and Class C rigs; Lippert Level-Up motors sit in tighter spaces on some Class B conversions.
We factor that into timing. Parts cost $280 - $500 depending on motor type. Labor is typically $150 - $350 flat-rate.
A Tiffin Allegro owner in Ocala needed a replacement mid-RV-season. We had the HWH motor in stock, arrived same day (2-hour response window).
Job took 3 hours door-to-door because his RV sat on a slight slope and air pockets were stubborn. We cycled jacks twice more than normal to purge bubbles.
Cost him $520 all-in. He was level, stable, and back on the road same afternoon.
Compare that to a dealer appointment (7 - 10 day wait) or a roadside shop with no leveling expertise - he dodged a week of downtime. That's why we stay mobile.
Motor replacement steps:
- Kill power at battery disconnect
- Release hydraulic pressure via valve
- Remove fasteners holding motor to pump
- Unplug electrical connector and relays
- Install new motor with new gasket
- Fill hydraulic reservoir to proper level
- Bleed air from pump outlet line
- Test all four jacks for even movement
- Check for drips and pressure stability
Parts we stock and what they cost
We stock OEM motors for both HWH and Lippert Level-Up systems - not cheap aftermarket clones. HWH motors run $280 - $420 depending on horsepower and voltage configuration. Lippert Level-Up motors are $310 - $480.
We also keep complete pump assemblies on hand if the motor bearing is toast and the pump shaft is compromised ($650 - $950 installed). Hydraulic fluid for top-ups is $35 - $55 per quart.
New hoses with fittings are $60 - $180 each depending on length. Control boards (if needed) run $120 - $280.
We source parts same-day or next-morning if we don't have stock. No dropship delays, no dealer markups. You pay what we pay plus a small margin - not a 40% dealer upcharge.
We quote a Coachmen Leprechaun owner in Idaho Springs a full motor swap. OEM Lippert motor in stock, $410.
Two hours labor at our flat rate, $200. New hydraulic filter (always replace during motor service), $28.
Total: $638 out the door. He shopped a nearby dealer, got quoted $1,100 for the same job with a 5-day wait.
We mobilized the next morning, finished before lunch. That's the difference between mobile service and a shop model that builds profit into scarcity.
Common motor and parts pricing:
- HWH 12V DC jack motor: $280 - $420
- Lippert Level-Up motor: $310 - $480
- Complete pump assembly: $650 - $950
- Hydraulic fluid (per quart): $35 - $55
- Replacement hose and fittings: $60 - $180
- Control board (HWH or Lippert): $120 - $280
- Hydraulic filter cartridge: $18 - $35
- Pressure relief valve: $45 - $75
How long until your jacks are working again
Most jack motor jobs finish in 2 - 4 hours from our arrival. In our covered metros core service areas, we respond within 2 hours of your call. If your RV is at a dealership lot, campground, or home, we come to you.
Diagnostic takes 20 - 30 minutes. If it's the motor, we confirm part availability, order if needed (usually same-day), and schedule install.
Simple replacement - just motor swap - runs the shorter end of the window (2 hours). Complex jobs - pump assembly failure, stuck hydraulic lines, control board issues - can push to 4 - 5 hours.
We don't rush and don't cut corners. We test twice and verify all jacks lock solid before we leave. Emergency response outside core areas (nationwide partner network) is next available, typically 24 - 48 hours.
A Keystone Sprinter owner broke down outside Nampa, Idaho on a Friday afternoon. His jacks failed completely.
We got the call at 4 p.m., arrived at 5:30 p.m., diagnosed a seized HWH motor, had the replacement unit at his location by 7 a.m. Saturday.
Finished by noon. Under our 90-day warranty, leveling system was solid through his entire vacation.
Had he waited for a dealer Monday call-back, he was looking at a weekend at a non-level campsite plus a 3 - 4 day service queue. Mobile service changed his trip.
Typical service timeline:
- Call (866) 623-1340 with your location and symptoms
- Dispatch response: 2 hours (FL/ID core), 24-48 hours (nationwide)
- Diagnostic on-site: 20 - 30 minutes
- Parts confirmation: same-day if in stock
- Installation: 2 - 4 hours
- Testing and pressure check: 30 minutes
- Completion and departure: same day (whenever possible)
What's covered under our warranty and what isn't
We warranty all jack motor replacement work for 90 days on parts and labor. If the motor we install fails due to a defect or our installation error, we fix or replace it free. If hydraulic lines we touched start leaking, we fix it.
If our control board replacement goes bad within 90 days, we swap it. What we don't cover: damage from improper use (hitting 40 mph over a speed bump and blowing out jacks), natural wear on seals after 90 days, or pre-existing damage we didn't cause.
We document everything at install - photos of connector condition, hydraulic fluid color, motor serial numbers - so there's no dispute later. Our warranty is workmanship, not a lifetime guarantee.
After 90 days, maintenance is on you. But that first 90 days?
We stand behind it. RVIA and RVDA certified shops, 15+ years, 12,000+ RVs serviced - our reputation is built on not cutting you loose.
A Winnebago Outlook owner in Tampa called two weeks after we installed his HWH motor. One jack was drifting down slightly - hydraulic seal weeping.
We came back, replaced the seal, re-bled the system. No charge.
That's in warranty. Another customer, a Tiffin Phaeton, called nine months after his Lippert motor swap asking for a free replacement.
Jacks worked fine but he'd read online that motors 'should last longer.' We explained his motor was original to his 2008 RV (now 2024) - 16 years of service before failure was excellent. Warranty doesn't cover age-related wear past 90 days.
He understood. That's honest service.
Covered vs. not covered:
- Covered: defective motor within 90 days
- Covered: leak caused by our installation
- Covered: failed control board we replaced
- Covered: line rupture due to our work
- NOT covered: damage from impact or abuse
- NOT covered: wear after 90-day period ends
- NOT covered: pre-existing rust or corrosion
- NOT covered: damage from deferred maintenance