A power wheelchair is a medical device that gets used every day for years, and at some point every chair in the field needs a consumable replaced or a fault diagnosed. For a distributor, that moment is where the margin is either protected or lost. The dealer who can ship a replacement charger in 48 hours keeps the customer, the referral and the next order. The one who has to wait six weeks for a single part from overseas loses all three. After-sales capability is what turns a one-time sale into repeat business and a defensible reputation — and it has to be planned before the first container lands, not improvised after the first breakdown.
This guide walks through how to plan spare-parts stock, build an RMA and warranty workflow with your manufacturer, and support your end users — and where Wanderoll's distributor support fits.
1. Which parts wear out and get replaced
You can't stock everything, and you don't need to. A small set of components accounts for the large majority of service events on a power wheelchair. Plan your spares around these:
- Batteries — the highest-value consumable. Lithium ("Li") batteries degrade with charge cycles and eventually hold less range; on a removable-battery chair this is a clean swap and a natural reorder item.
- Chargers — small, frequently lost or damaged, and a cheap part that idles an expensive chair when it's missing. Easy and worthwhile to stock deep.
- Casters & tyres — front casters and drive tyres take the most road wear and are among the most common physical replacements, especially on chairs used on rough ground.
- Controller / joystick — the electronic control unit and joystick are lower-frequency but higher-impact; a failure here takes the chair off the road entirely.
- Armrests & leg rests — handling, transfers and knocks make these the typical physical breakages, particularly on tilt and recline models with orthopedic leg rests.
- Seat cushions & upholstery — wear and hygiene items on chairs used daily for long sitting periods.
A practical way to think about it: split parts into consumables (batteries, chargers, tyres, cushions — predictable, reorder on a cadence) and functional spares (controllers, motors, brakes — rarer, but a stockout means a chair is dead). You stock consumables by volume and functional spares by risk.
2. How to plan the stock level
The goal is a spares package sized so the common failures are covered locally, without freezing cash in parts that rarely move. Three inputs drive the quantity:
- Sales volume in the field. The more chairs of a model you've sold, the larger the installed base that can need a part. Size consumable stock against units in service, not units in your last order.
- Failure / replacement rate per part. Batteries, chargers and tyres turn over far faster than controllers or motors. Stock the fast movers deep and the rare functional parts thin — but keep at least a critical minimum of the parts that take a chair fully out of service.
- Lead time to resupply. The longer it takes to get a part from the manufacturer to your shelf, the more buffer you must hold to cover demand during that gap. A short, reliable resupply line lets you hold less safety stock; a long one forces you to hold more.
The cleanest way to set this up is to agree a spare-parts package as part of your supply agreement, sized to your forecast and reorder cadence, rather than ordering ad hoc each time something breaks. Ordering parts only after a failure builds the full resupply lead time into every single repair — which is exactly the delay that loses the customer.
3. RMA & warranty workflow with the manufacturer
When a unit is genuinely defective rather than just worn, you need a clean RMA (return merchandise authorisation) process with your manufacturer so the claim is handled without a chair sitting broken in a corridor. A workable workflow looks like this:
- Log the claim with the model, serial number and a clear fault description (and a short video where it helps).
- Get the RMA authorised by the manufacturer before anything moves, so the return is tracked.
- Diagnose locally where you can — often a part swap your in-market team can do beats shipping a whole chair back.
- Resolve by replacement part, repair or unit replacement, per what the warranty covers.
The point most worth pinning down in writing is the warranty terms — the period, what's covered versus excluded, and the claim turnaround. These are set per model and program and confirmed on your distribution agreement, not a single blanket figure, so make sure your agreement spells out the coverage, the RMA route and the timing before you rely on them. A defined warranty and RMA process is what lets you make a confident promise to your own customer instead of a vague one.
4. Technical support & training for your end users
Stock and warranty handle the parts; technical support handles the knowledge. Much of the field "failure" volume on power wheelchairs isn't a broken part at all — it's a setup, charging or operating question that the right support resolves without any return. To support your end users well, plan for:
- A clear support channel so your in-market team can get product, configuration and service answers from the manufacturer for the models you carry.
- Setup and operating guidance for your staff — folding and unfolding, battery removal and charging, controller settings — so common issues are solved on first contact.
- Manuals and documentation in your market's language, which under OEM / private label can carry your own brand.
- Diagnostic support for the harder faults, so a part is swapped right the first time rather than by trial and error.
Resolving issues at this level — before they become a return or a refund — is often the difference between a satisfied customer who reorders and a churned one who posts a complaint.
Spare-parts planning at a glance
| Part class | Why you stock it | How to size the quantity |
|---|---|---|
| Batteries (Li) | High-value consumable; range fades with cycles | Against installed base + battery resupply lead time |
| Chargers | Cheap, often lost/damaged; idles an expensive chair | Stock deep — low cost, high disruption if missing |
| Casters & tyres | Highest road wear; common physical replacement | By field volume and typical terrain of your market |
| Controller / joystick | Rare but takes the chair fully off the road | Critical minimum per model in service (risk-based) |
| Armrests & leg rests | Knocks and transfers; common breakage | Light buffer, more on tilt/recline models |
| Seat cushion & upholstery | Daily-use wear and hygiene item | Reorder on a cadence against units in service |
Rule of thumb: stock consumables by volume (how many you've sold) and functional spares by risk (how badly a stockout hurts) — and always factor the resupply lead time into both.
How Wanderoll backs its distributor partners
Wanderoll is a factory-direct manufacturer that builds its ten-model range on its own line, and the after-sales side is set up to keep your fleet running, not just to ship the first order:
- Spare parts to distributors. Replacement parts are supplied to distributor partners so the chairs you sell stay in service. Parts availability and ordering are set up with your distribution agreement — tell us the models you'll carry and we'll confirm the parts programme.
- Warranty & RMA, defined on your agreement. Warranty period, covered scope and the RMA route are confirmed on your distribution agreement, set per model and program rather than as a single blanket term, so you know exactly what to promise your own customers.
- Technical support to your team. Product, configuration and service support is provided to distributor partners so your in-market staff can support end users; the channel and scope are confirmed on your agreement.
- Video inspection before it ships. You can request video inspection of your production run, and every chair is function-tested at end of line (powered, driven and braked) under our ISO 13485 quality system before shipment — so fewer issues reach the field in the first place.
Plan the after-sales before the order, and a power-wheelchair line becomes a business you can build on for years rather than a sale you make once.
Building your spare-parts and after-sales plan? Tell us the models you'll carry, your forecast volumes and the markets you cover, and we'll confirm the parts programme, the support setup and the warranty / RMA terms on your distribution agreement. → Request a quote
