Stairlift Not Working? Common Problems and What to Do

Key facts

• A stairlift that appears dead is usually a lift whose safety interlocks are doing their job. Acorn’s manual states the lift will not run with the key switch off, and will not move with the seat swivelled to 45 or 90 degrees.
• Safety edges stop the lift when they touch something. On an Acorn, the manual says you can drive the lift back the other way and clear the obstruction, which is why a lift that goes one way but not the other usually has something on the stairs.
• Most seated stairlifts charge only at the top and bottom of the rail. A lift left mid-stairs runs on battery until it goes flat.
• Across the 35 conditions in Acorn’s, Stannah’s and Handicare’s own code tables, we counted 18 that an owner can clear without tools and 9 that are for an engineer only. The breakdown is below.
• Batteries are the commonest real repair, at £60 to £120 fitted. A motor or gearbox repair is £150 to £400 or more, which is when repair or replace becomes a fair question.

Find your symptom

Start with what the lift is doing, not with a guess about what has broken. This table points you to the right section and, where we have one, to a fuller guide.

The stairlift will not move at all

The display is blank

No lights usually means no power is reaching the controls. Check the key is in the carriage and turned to on. On an Acorn 130, a key turned off or removed shows E9 and the lift will not run, and Stannah’s 600 series shows 4. Then find the isolation switch on the carriage. It needs to stay on all the time, and it is easy to knock off when someone is cleaning the stairs. Last, check the socket the charger plugs into is switched on and that nothing has tripped at the fuse box.

If all three are fine and the display is still blank, the batteries may be completely flat. A lift that has sat off charge for a week or more can take a long time to recover, so park it on charge if you can and leave it overnight before deciding.

The lights are on but it will not go

This is usually not a fault. Seated stairlifts have interlocks that stop it moving unless the rider is sitting safely. Go through them in this order.

1. The seat. It has to be swivelled back and locked facing along the stairs. A seat left turned at the landing is an easy one to miss. Acorn shows E6 and Stannah shows 7.
2. The armrests. Stannah’s 600 series will not move if the armrest on the stair side is raised, and shows 5.
3. The footrest. It needs to be fully down. Check underneath it too, because a slipper or a dropped newspaper under the footrest presses the safety plate.
4. The seatbelt, where one is fitted. Stannah shows 6 if an immobiliser belt is not fastened properly.

Then hold the control down for a full second. A quick tap is not always enough. On most lifts the paddle or joystick on the armrest overrides the remotes, so test from the chair first.

It stops partway, or only goes one way

Stairlifts have pressure-sensitive safety edges on the footrest and on the carriage. If one touches something, the lift stops. Acorn’s manual says this can be overcome by moving the lift back in the opposite direction and removing the obstruction, and its display tells you which edge was hit: E1 and E2 for the footrest, E4 and E5 for the carriage. Handicare’s 2000 shows 4 or 6 for the top and bottom safety edges.

So if the lift goes up but not down, look below the carriage. Walk the full length of the rail. Common culprits are a shoe on a step, a bag left on the stairs, a carpet edge that has lifted, a pet, and a grandchild’s toy. Check the rail itself as well, because anything resting on it will stop the carriage.

If there is nothing in the way and the lift keeps stopping in the same place, or it stopped with no warning and the display shows a battery code, treat it as a fault. A lift that stops short repeatedly is one to stop using until it has been looked at.

On Handicare 2000 lifts, 3 or 5 on the display means a top or bottom track limit. That is the lift telling you it has reached the end of the rail, and driving it back the other way usually clears it.

It is beeping

A beep on its own almost always means the lift is not charging. Acorn’s manual says the lift gives a single beep when it reaches a charge point, so a beep that keeps going means it has not docked. Send it fully to the top or bottom of the rail and give it an hour. Our guide to a stairlift beeping and not charging covers the four checks in detail and what to do if they do not work.

There is a code on the display

Codes are not standard between manufacturers. A 1 means “charging or battery fault” on a Stannah 600 and “requires charge” on a Handicare 2000, and Acorn uses letter and number pairs. Look the code up against your own model, never a general list. Our stairlift fault codes reference has the tables from the manufacturers’ own documents, and there are model-by-model guides for Acorn, Stannah and Handicare.

As a rule, a code that starts with F on an Acorn, a 9 or F on a Stannah, or any of d, E, F, G, H, L or y on a Handicare 2000 is an engineer job. Those codes report the brake, relays, motor current or main board.

What we found when we counted the manufacturers’ codes

How we counted: each condition counted once, as grouped in our fault codes reference, so Handicare’s paired codes such as 4 and 6 (top and bottom safety edge) count as one condition and Acorn’s C1 to C6 charging sequence counts as one. “Check first” means the manufacturer gives the owner a step to try before calling, such as checking the socket or charging overnight. Counted on 1 October 2026. This is a count of what the manuals list, not a measure of how often each fault happens in real homes, which no manufacturer publishes.

The practical point is that roughly half of what a stairlift display can tell you is about how the lift is being used, and only about a quarter needs a visit. That is why the checks above are worth two minutes before you book a call-out, and why a repeat of the same owner-clearable code is a sign to look at routines in the house first: who is leaving the seat swivelled, and what keeps ending up on the stairs.

It is slow, jerky or noisier than it used to be

A lift that has slowed down, or struggles on the way up, is often running on batteries near the end of their life. Batteries typically last three to five years and our stairlift batteries guide covers the signs. Grinding, clicking or a new judder is different. That points to wear in the drive or a problem on the rail, and it is not something to keep riding. Book a visit, and mention exactly when the noise happens: going up, going down, or at one point on the stairs.

The remote or wall station does nothing

The call and send remotes at the top and bottom of the stairs run on ordinary batteries, separate from the lift’s own pack. Acorn recommends replacing the 9 volt battery in the remote handset every year and says to point the handset at the infrared sensor on the carriage. If the lift works from the chair but not from the remote, the remote is the problem and the lift is fine. Check also that the lift is not already sitting at the end the remote is trying to send it to, and that the seat is facing the right way, because the interlocks apply whoever is pressing the button.

Someone is stuck on the stairs

This is the situation that brings most people to a page like this, so here is the order to go in.

1. Keep the person seated with both armrests down. Acorn’s manual advises staying calm on the lift with the arms down.
2. Let go of the control, then press it in the opposite direction. That clears a safety edge on most lifts.
3. Look at the display and around the footrest and carriage for anything in the way.
4. If it still will not move, call the service company or the manufacturer’s service line. The make and model are on a plate on the carriage or under the seat. An engineer can move a stuck carriage safely.
5. Do not try to lift or carry the person off the chair on the stairs on your own. If they are unwell or hurt, call 999.

Our stairlift safety guide covers safe use and what to have in place for a lift someone depends on.

Repair or replace?

Most stairlift faults are worth repairing. A battery, a remote or a sensor is a small job on a lift that otherwise suits the person using it. The question only gets serious when the engineer quotes for something expensive, or says parts are hard to get.

Repairing is usually the right call when:

• the fault is batteries, a remote, a sensor or a switch;
• the lift is inside its warranty or covered by a service contract;
• the lift still suits the person using it;
• it is a curved lift, because the rail is made for your staircase and it is the largest part of the cost of a replacement.

It is worth getting a replacement quote alongside the repair quote when:

• the engineer says the model is discontinued or parts are hard to source;
• the repair quote is a large share of what a reconditioned straight lift costs, which is £1,000 to £2,000 installed;
• the lift has broken down more than once in a year;
• needs have changed, for example the user now needs a powered swivel seat, a hinged rail to clear a doorway, or a higher weight capacity.

Our rule of thumb, which is a judgement and not a statistic: if a lift is out of warranty and the repair quote is more than half of what a reconditioned straight lift would cost, get at least one replacement quote before you agree to the repair. Ask the repairer, in writing, what other parts are likely to need replacing in the next two years. If the answer is several, that changes the sum.

If you do replace, the old lift does not have to be a cost. Our guides to selling a stairlift and stairlift removal cover what it may be worth and what removal involves. If you are weighing new against reconditioned, see reconditioned stairlifts and buy, rent or reconditioned.

If the engineer has told you the lift is not worth fixing, or you want a price to set against a repair quote, you can compare quotes for a new or reconditioned replacement from UK suppliers. It is free and there is no obligation.

What a repair is likely to cost

Battery, service and replacement figures are the ranges on our stairlift prices guide. Repair and call-out figures are from our stairlift repairs guide. All reviewed October 2026. Call-out charges outside cover are not published consistently by UK companies, so ask for the figure, and whether it includes parts, before you agree to a visit. Our warranty and aftercare comparison shows what each brand’s cover includes.

What to tell the engineer

A clear call shortens the visit and sometimes avoids it. Have these ready:

• the make and model, from the plate on the carriage or under the seat;
• roughly how old the lift is, and whether it is under warranty or a contract;
• exactly what the display shows, letter for letter;
• what the lift does: nothing, one direction only, stops at the same place, beeps, makes a noise;
• which of the checks on this page you have already done.

If the lift is out of cover, ask for the call-out charge before you book, and ask at the same time what an annual service costs. Our stairlift servicing guide explains when a contract pays for itself.

Frequently asked questions

Why has my stairlift stopped working suddenly?

Most sudden stops are a safety interlock, not a breakdown. Check the key switch and isolation switch are on, the seat is locked facing along the stairs, the armrests and footrest are down, and nothing is touching the footrest or carriage. If all of those are fine and the display shows a fault code, look the code up for your model and call the service company if it is an engineer code.

Why does my stairlift go up but not down?

Usually because a safety edge on the downhill side is touching something. Safety edges stop the lift in the direction of the obstruction, and on an Acorn the manual says you can drive back the other way and clear it. Check the stairs below the carriage, under the footrest and along the rail.

How do I reset my stairlift?

Correct whatever caused the stop first, then turn the key switch off, wait about 30 seconds and turn it back on. That clears a latched interlock on most lifts. If the same fault comes straight back, stop resetting it and call the service company, because the safety system is reporting something real.

Can I use my stairlift during a power cut?

Yes. Stairlifts run from a battery pack that the mains supply keeps charged, so they work through a power cut until the batteries run low. If someone in the household depends on the lift, our batteries guide explains how to register with the Priority Services Register.

Is it worth repairing an old stairlift?

Often, yes, especially for batteries, sensors and remotes. It is worth getting a replacement quote to compare when the repair is large, parts are hard to get, the lift has broken down more than once in a year, or the user’s needs have changed. Curved lifts are usually worth repairing harder, because the rail is made for your staircase.

Who do I call if I do not know who fitted the stairlift?

Find the make and model on the plate on the carriage or under the seat, then contact that manufacturer’s service line. They can tell you who services that make in your area, and some independent repair firms work on several brands.

Related guides

• Stairlift fault codes
• Stairlift beeping and not charging
• Acorn stairlift troubleshooting
• Stannah stairlift troubleshooting
• Handicare stairlift troubleshooting
• Stairlift repairs
• Stairlift insurance

Sources

• Acorn 130 user manual, Acorn Stairlifts, https://www.acornstairlifts.co.uk/Acorn-Stairlifts-User-Manuals-130.pdf, accessed 1 October 2026. Key switch and seat swivel interlocks, safety edges and moving in the opposite direction, charge points and the single beep, remote handset battery, what to do if the lift stops on the stairs, display codes.
• Model 600 Siena “Looking after your stairlift”, Stannah, https://resources.stannah.com/hubfs/UK%20Consumer/Stairlift/600%20Siena.pdf, accessed for our fault codes reference, September 2026. Display codes 1 to 7 and 9 or F.
• Handicare 2000 Quick Reference Guide, version 2.1, Handicare, hosted by Dolphin Lifts, https://www.dolphinlifts.co.uk/wp-content/uploads/2018/06/handicare-2000-engineer-reference-guide.pdf, accessed for our fault codes reference, September 2026. Single-character display codes.
• Stairlift fault codes, Stairlift Guru, https://stairliftguru.co.uk/stairlift-servicing/stairlift-fault-codes/. The 35 conditions counted on this page.
• Stairlift prices and stairlift repairs, Stairlift Guru, reviewed October 2026. Battery, service, call-out, repair and replacement ranges.

How we are funded

We do not sell or install stairlifts, and we do not repair them. Quotes go to UK suppliers. If you buy a stairlift from a supplier we introduced you to, that supplier pays us a fee. Requesting quotes is free and we are not paid for the request itself. Stairlift Guru is published by Whito Ltd, a company registered in England and Wales (number 10918465), and we have no ownership link to any supplier or repair company.

How to cite this page

Stairlift Guru, “Stairlift Not Working? Common Problems and What to Do”, stairliftguru.co.uk, reviewed October 2026.

Last reviewed: 1 October 2026. Editor: Jacob Whitmore.