Acorn Stairlift Diagnostic Display Codes

What are stairlift codes used for?

The Acorn and Brooks straight stairlift displays a series of Stairlift fault codes. These fault codes are for diagnostic purposes. They help the user or stairlift engineer quickly identify the current status or potential problem.

This is especially useful when trying to explain over the phone to a Stairlift engineer exactly what has happened or gone wrong with the lift. Using these informative codes enables the Stairlift engineer to quickly diagnose the exact cause of the fault or issue. In many cases they can be used them to resolve the problem over the phone. This saves the user money by not having to pay for a callout.

How to use the stairlift display codes:

The very first versions used a series of traffic light coloured led’s to display the fault codes. These were quite hit and miss, especially when the led’s became loose or desoldered from the circuit board in the arm. Also, when carrying out a Stairlift service, these are invaluable for determining whether individual safety circuits are working correctly or not. It eventually moved on to a digital display which showed various letters and numbers in single format as in the following table:

Older Acorn Superglide

Acorn Superglide 120

Acorn Superglide 130

Acorn Superglide T700

Acorn & Brooks Superglide 120 (older versions)

Display CodePower DownDescriptionPossible FaultPossible Solution
BlankPower DownCheck main power switchIf power switch is on, call Stairlift Medics
0Batteries (Low Voltage)Battery voltage is 17V or lessCall Stairlift Medics
1NormalArmrest toggle switch faultTry a remote controller or call Stairlift Medics
2Lift charging, audible beepingMake sure charger is pluuged in to outlet;
or lift is not parked on charge contact;
or power outage
Plug charger in to wall outlet;
or move lift to charge station;
or wait for power restoration
if none, call Stairlift Medics
3Over Speed GovernorChassis speed or internal malfunctionHandwind lift up track a few inches to reset and resume normal operation; or
Call Stairlift Medics
4Seat Turnedseat is not in the forwards travel position; or the armrest on the downward facing side of seat is not down (some models)Lock seat to forward and make sure armrests are in down position; or
Call Stairlift Medics
5Key OffKey is in off positionTurn key to on position
6Final LimitLift has overrun the final limit switchHandwind lift up/down slightly back towards the opposite end to reset; or
call Stairlift Medics
7Footrest DownFootrest safety panel on the bottom of the footplate is engagedMake sure there is no footrest obstruction; or
Call Stairlift Medics
8Footrest UpFootrest safety edge on the side facing up the stairs is engagedMake sure there is no obstruction on the footplate; or
Call Stairlift Medicss
9Carriage UpSafety panel on the upward facing side of the stairlift main chassis is engagedMake sure there is no obstruction on the track on the upward side of lift; or
call Stairlift Medics
ACarriage DownSafety panel on the downward facing side of the chassis is engagedMake sure there is no obstruction on the track on the down side of the lift; or
call Stairlift Medics
CBatteries FlatBattery ConditionPark lift on charge station for 1 hour; or
call Stairlift Medics
EBrake FaultPossible low batteriesTry reset by turning stairlift power off and then back on; leave on charge for 1 hour; or call Stairlift Medics
FMotor FaultMotor is malfunctioningCall Stairlift Medics
URelay FaultRelay or circuit board malfunctionReset by turning off stairlift power and unplugging charger for 5 minutes. Plug in charger and power on lift; or call Stairlift Medics

Acorn & Brooks Superglide 130

Display CodeStatusDescriptionSolution
No DisplaNormalPower Down - Sleep ModeCheck power switch is on. Activate toggle to wake
Call Stairlift Medics
A1NormalNo Charge. Lift will beepCheck power switch is on. Activate toggle and drive to charge point
call Stairlift Medics
P0-P3NormalNo MovementBoth directional buttons were pressed at the same time. Release. Allow 5 seconds. Try again
A2NormalLift moving upLift operating normally
A3NormalLift moving downLift operating normally
A4NormalLift moving up (remote)Lift operating normally
A5NormalLift moving down (remote)Lift operating normally
C1NormalBattery ChargingLift operating normally
C4NormalBattery Fully ChargedLift operating normally
C5FaultBattery FaultCall Stairlift Medics
E1NormalSafety Edge, Footrest UpCheck upward side of footplate for obstruction
or, call Stairlift Medics
E2NormalSafety Edge, Footrest DownCheck bottom side of footplate for obstruction,
or call Stairlift Medics
E3NormalSafety Edge, Chassis UpCheck main chassis and track on upward side of stairlift for obstruction, or
call Stairlift Medics
E4NormalSafety Edge, Chassis DownCheck main chassis and track on downward side of stairlift for obstruction, or
call Stairlift Medics
E5NormalSeat not in positionTurn seat to normal position and make sure armrests are in down position, or
call Stairlift Medics
E8NormalBattery LowDrive stairlift to charge point, or
Call Stairlift Medics
E9NormalKey switch offTurn key to on position
F1FaultRelay FaultPower down stairlift, wait 5 minutes and power on, or call Stairlift Medics
F2FaultBrake Fault <18VPower off/on stairlift to reset. Drive stairlift to charge point for 1 hour; or call Stairlift Medics
F3FaultMotor FaultPower off/on stairlift to reset.
Call Stairlift Medics
F4FaultMotor Over currentPower off/on stairlift. Check user weight is appropriate for lift
call Stairlift Medics
F5FaultBattery FaultDrive stairlift down to lower charge point. Leave to charge for 1 hour.
Call Stairlift Medics
F6FaultFinal Limit OverrunHandwind stairlift up (clockwise) to reset. or,
call Stairlift Medics
F7FaultOSG SwitchHandwind stairlift up (clockwise) to reset. or, call Stairlift Medics
F8FaultSystem LockoutPower off/on to reset
H1NormalMultiple operating errorscheck all safety edges, call Stairlift Medics
H2NormalMultiple operating errorscheck all safety edges, call Stairlift Medics
H3NormalMultiple operating errorsCheck all safety edges, call Stairlift Medics
H4FaultSafety Device FaultCall Stairlift Medics