In 2013 we became aware of a single and isolated incident where a BoSS X3 Micro Powered Access Platform continued to operate after the user released the platform raise button on the hand-held controller. Following this incident we put in place a communications campaign with a remedial plan to check and upgrade all affected machines.

The solenoid valve upgrade kits, together with fitting instructions were sent to all who had purchased machines manufactured before November 2012, who responded to the communication.

On 27th October 2016, we were notified of a second incident affecting one of the machines within this same batch of serial numbers, which unfortunately was not upgraded. If your company purchased machines within this period, we request you to re-check that all machines were upgraded as per our initial request.

Please check your BoSS X-Series Micro Powered Access machine

If you have any machines that are affected by this notice that have not been upgraded then please contact us immediately. Only those machines within this batch are affected by this issue.

BoSS X-Series push-around micro powered access platforms X2, X3, and X3X - manufactured before November 2012.

  • Serial numbers X2 YMG 21000 to YMG 21228
  • Serial numbers X3 YMG 11001 to YMG 11918
  • Serial numbers X3X YMG 31001 to YMG 31238
  • Serial numbers X3X YMG 32001 to YMG 32158

Machines within the serial numbers affected that have already been updated have been identified as completed by use of the sticker below. This sticker is only evident on models affected by this issue.

1. Check the serial number.

Model No.Series Number
From (incl.)
Series Number
To (incl.)
Upgrade kit
Reference No.
Product Advice Note Reference No.
BoSS X2210002122881200201QB0014/13-A
BoSS X3110011191881200201QB0014/13-A
BoSS X3X310013123881200201QB0014/13-A
BoSS X3X320013215881200202QB0014/13-B

2. Check it has the white "Two Way Valve" label below - if so no further action.


3. No label - Please contact us immediately.

Call WernerCo on 01621 745 900 or email [email protected].

FAQs on BoSS X-SERIES notification


I have not received a communication but my machine may be affected.

If you have a BoSS X-Series machine with a serial number within the above ranges, verify the upgrade kit has been fitted by following these 4 simple visual checks;

  • There is a red knurled knob fitted to the ascent/descent platform valve
  • There is a red webbing strap fitted to the 100 amp fuse inside the base unit draw
  • Cable number 13 is fitted to connection number 3 on the terminal block inside the base unit draw
  • There is a white label on the outside of the draw ("Two Way Valve Fitted")

If all the above are present, then the upgrade kit has been fitted. If one, or more, of the above are missing then it is highly likely that the upgrade has either not been fitted, or has been fitted incorrectly.

If you are in any doubt, please call the WernerCo Customer Services Team on 01621 745 900 or email [email protected].

I am not sure how to check the machine or how to fit the valve upgrade kit.

Please browse the Instructions for further instructions. The step by step guide shows how to double check that the valve upgrade kit has been fitted and how / where to affix the enclosed labels.

If you are in any doubt regarding how to check the machine serial number, how to check if the 2-way solenoid valve is fitted or are unsure how, or would prefer us, to fit the valve upgrade kit (only machines with serial numbers within the 'affected range' need to be upgraded), please call the WernerCo Customer Services Team on 01621 745 900 or email [email protected] who will be happy to arrange for an engineer to visit.

View Instructions

Can I fit the 'BoSS X-Series Approved' sticker on any BoSS X-Series machines?


BoSS X-Series Approved sticker

Please DO NOT fit the sticker to any other BoSS X-Series machine or one where the serial number falls within the affected range but the upgrade has not been carried out. So that we can maintained full traceability.



Please be assured that we take the safety of our products extremely seriously and despite the fact that several years have passed, we are again taking all necessary steps to request that customers check machines with these serial numbers.

For more information on this matter, or for answers to any other queries you may have, please contact WernerCo Customer Services.

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