What salt and sun do to an eFoil
In Lift's words, “Salt water is corrosive and will degrade metal, seals, and electronics over time.” Aerofoils explains the mechanism. Seawater that dries on the gear leaves crystals that pull moisture back out of the air, so screws and connectors end up under a damp film that conducts electricity. A board that looks dry on its rack can still sit under brine.
SiFly checks motor and seals after each session because “Crystallized salt can damage both.” Sand on a hatch seal opens a path for water, and Lift calls a compromised hatch seal “the main source of water ingress”. After a lake session Aerofoils only asks for the sandy spots to be rinsed.
On sun and heat the makers agree. Fliteboard says in capitals that no equipment is stored or left in direct sunlight, Waydoo that sun, UV and heat “will cause permanent damage”, and SiFly's warranty excludes harm from more than 50 °C, a hot car included.
Rinsing and drying after every session
The power goes off first. Fliteboard powers down and disconnects the Flitecell before any cleaning, Lift switches off and removes the battery, and Lift never takes it out or puts it in while the board is in the water. Waydoo warns that plugging or unplugging the mast with the battery on can spark.
Use a garden hose. Awake prints “DO NOT USE HIGH PRESSURE WATER”, and Aerofoils rules out pressure washers and compressed air because both force water behind the seals. Salt hides inside the mast and the cooling channels. A Fliteboard mast is rinsed from the inside through the notch at the rear of the flange; Lift holds the hose to the motor's water inlet and flushes the eBox cooling line under the board. Waydoo gives about a minute each for the board and the mast body. In the hand controller, water runs into the trigger housing while you press the trigger again and again, and a sticking throttle usually means sand or gravel inside.
Then open the battery compartment. Fliteboard looks for water in the cavity after every ride and names the causes: sand on the seal, a damaged seal, something trapped under the lid. Lift lists the signs (power cuts mid-ride, a musty smell) and the damage, from corroded pins to a failed eBox. Its fix is to power off, drain the hatch, disconnect the battery, dry everything, check the pins and test on land.
Drying deserves the same care as rinsing. Awake warns that gear stored wet grows algae or mold, and SiFly's warranty excludes paint damage on a board stored “wet in board bag”.
The routine after every session
- Battery off and out on land.
- Each part hosed with fresh water, mast and cooling inlet included.
- Trigger worked under running water.
- Battery compartment checked for water, seals for sand.
- A look for dents, scratches and loose screws, as Awake's checklist has it.
- Towel off, air dry out of the sun, pack only when dry.
Charging between rides is covered in the eFoil battery guide.
Corrosion on anodized aluminum, screws and the propeller
Fliteboard builds its Folding Prop from “aircraft grade anodised aluminium”. Salt still gathers where parts meet, and Lift admits that in salt water “a little bit of corrosion is inevitable”. Once corrosion is advanced, Lift's rule is to stop using the part and contact Lift Support. A corroded connector is never ground clean.
On the propeller, salt builds up at the blade pins and the back clamp. Fliteboard takes the Folding Prop off now and then and wipes both with a microfiber towel and WD-40 or isopropyl alcohol, carefully, since the “blades are extremely sharp”. The Prop Module sits on a reverse thread with a little Tef-Gel and is never forced.
On electrical contacts the makers disagree outright. Fliteboard cleans them only with isopropyl on a cotton swab and writes “Never use WD-40, citrus or contact cleaners”. Awake sprays contact spray, WD-40 as its example, on the connector pins before storage. Lift puts ReelX on contacts and metal hardware at least once a month and calls a rinse plus ReelX after every session “the single best way to extend the life of these parts”. Aerofoils ships Corrosion-X: one drop on data and power contacts about every 10 operating hours. Use the product your own maker names.
Where two metals meet, salt water in the joint starts galvanic corrosion. Tef-Gel (40 % PTFE, no solvents) keeps it out with a thin coat on bolt and hole. Fliteboard riders in daily use separate eFoil and wings at least every three days and reapply it to all screws. Torque follows the manual, and Fliteboard's warranty excludes maintenance against its procedure “including but not limited to torque settings”. The figures are model specific: about 8 Nm for the drive unit screws of the Aerofoils Hyperfly, 2.0 N·m for Lift's LCS base plate.
Seals keep the water out. Lift replaces any cut, cracked or discolored seal before the next ride. Its phase seals, colored O-rings on the three motor phase connections, let water in once worn. The motor then stutters or stops. Lift replaces them yearly or after an impact.
Storage between sessions and over winter
Between sessions a board can be stored assembled, but SiFly asks for it to come apart every 3 to 4 weeks so screws and inserts get fresh Tef-Gel. Lift stores it deck up on a stand or a soft surface.
A longer break begins after about four weeks for Aerofoils and after two months for Awake. Aerofoils takes everything apart, rinses and dries it and keeps the battery out of the board. Awake cleans with fresh water and stores the modules disconnected at room temperature. Fliteboard wipes the eFoils with isopropyl before winter, the joins above all, and opens the controller (three screws underneath) to clean trigger, spring and magnet. Lift removes the propulsion unit, and Awake clears the jet, which is “especially exposed to marine debris and rough bottom conditions”. Charge levels and temperatures for the pack are under storage in the battery guide.
The end of season routine
- Battery out and stored as its manual says.
- Foil apart, washed in fresh, slightly soapy water away from the electronics.
- Everything dried fully, cavities included.
- Contacts treated with your maker's product, seals inspected.
- Firmware updated, as Awake asks.
- Bags and cases in a cool, dry place out of the sun.
- In spring, Flitecell and controller charged fully before the first ride.
Transport, bags and shipping an eFoil
Damage out of the water is mostly yours. Awake excludes drops and transport damage, SiFly loading and handling on land, Fliteboard and Lift incorrect storage or transport. Awake recommends moving board and battery separately, with the battery strapped down on the road. Lift's Elite Board Bag carries the eFoil with the mast still on.
How far a board can travel depends on its battery. Fliteboard keeps Flitecells off passenger aircraft and ships them only as cargo airfreight or sea freight with a dangerous goods specialist. Awake does not let customers send Flex batteries “via any form of air transport/freight/shipping”. SiFly rules out passenger aircraft too but says a dedicated cargo plane may be possible, and Lift sells the Zarges Battery Case as “the only Lift-approved option for air transport”. Airline limits are in the battery guide.
For a Fliteboard service the Flitecell is not shipped at all; the owner brings it to the nearest certified partner. A battery that was dropped or scratched stays unused and uncharged at Awake until Awake has assessed it.
Board dings and leaks: what you fix, what goes to the maker
Fliteboard sends carbon, fiberglass and ABS boards to a surfboard or composite repairer with one condition: “epoxy resin is used, not polyurethane-based resin”. Small dings take a fast set epoxy; larger ones are rebuilt with cloth or carbon twill. Waiting can cost Bluetooth signal or let water in.
The inflatable Fliteboard AIR takes a patch that overlaps the hole by 1 to 2 cm, pressed for 2 minutes and cured for 24 hours. Tears over 1 to 2 cm and damage at seams, rails or fin box go to Fliteboard support.
Anything sealed belongs with the maker. SiFly excludes board damage the owner repaired and anyone who opens the motor, ESC, controller or battery; Awake excludes repairs by people it has not authorized. Lift wants to hear from owners whose hatch keeps taking water and before a badly corroded part is used again.
eFoil warranty and dealer service by brand
Three brands tie their cover to a scheduled service.
Swipe sideways to see all columns
| Brand | Warranty | Service interval | Who does the work |
|---|---|---|---|
| Fliteboard | 2 years from purchase | 1 year or 100 hours on most eFoils; Jet C and Flitescooter C 2 years or 200 hours | Authorized service partner or HQ |
| Lift | 1 year on Lift made parts | - | Lift Support (dealers cannot approve claims) |
| Awake | Board 24 months, registered within 8 weeks | - | Awake or people it has authorized |
| Waydoo EVO Pro Plus (Europe) | Board 1 year; mast, propulsion, remote, charger 2 years; wings 6 months | - | Waydoo service center in the region of purchase |
| SiFly (Europe, North America) | Board 2 years; hydrofoil 2 years or 300 motor hours | Hydrofoil every 100 motor hours or 12 months | Nearest SiFly service point |
| Aerofoils | 2 years, private use | Inspection after 12 months | - |
A Fliteboard service replaces motor seals, O-rings, oil, anodes and wing pads and adds a pressure test and software updates; the Flite App logs it. The warranty requires maintenance as the User Manual describes it, excludes “damage or failure to components caused by corrosion” and ends with any commercial use.
Lift covers personal, commercial and instructional use alike, but “Water intrusion, corrosion, or moisture exposure” are excluded, the owner pays shipping both ways, and the cover stays with the original buyer. Claims go to support.liftfoils.com, since “Dealers, resellers, and affiliates are not authorized to approve warranty claims”. For accidents Lift points to an optional Accidental Damage Plan from SureBright, a third party, with a $500 deductible.
Awake wants software updates installed and a claim within 2 months of noticing a defect, and the registered warranty passes to the next owner. Waydoo gives no official local warranty on a board from a non-local dealer and excludes riding in water shallower than 1.2 m.
SiFly is the strictest. Without the “mandatory hydrofoil service interval of every 100 motor operating hours or 12 months” the hydrofoil warranty is “VOID”. Outside continental Europe, the United Kingdom, continental North America and the UAE the owner pays transport to the nearest service center. The warranty transfers, which helps when you buy a used eFoil.
