This blog is about the W&H Lexa PM Checklist.

W&H Lexa PM Checklist

With our Free Preventative Maintenance Program, we cultivate a section of our website dedicated to resources available to our customers anytime they need. This ranges from things like overviews of our products and items, manuals, and the subject of this article, preventative maintenance checklists. So today, we’ll be talking about the preventative maintenance checklist for your W&H Lexa sterilizer. This checklist will include the daily maintenance steps, as well as monthly and yearly maintenance for the door seal, chamber filter and HEPA filter. Along with links to the necessary parts for each action.

You can find a downloadable version of this W&H Lexa preventative maintenance checklist on our website here. 

And if you have any questions our certified technicians are here to help. And you can give us a call at 704-966-1650, and hit option 3 for our Free Tech Support line.

This is the front view of a W&H Lexa MN-111 sterilizer autoclave.

This is the W&H Lexa PM Checklist.The Preventative Maintenance

This document outlines the cleaning and preventive maintenance procedures needed to be maintained on your W&H Lexa sterilizer.
To see detailed instructions on each step please scan the QR code titled “W&H Lexa User Manual 

Daily
Clean the External Surfaces

Clean all external sterilizer covers with a slightly damp cloth moistened with water

Note: Never use detergents or abrasive products.

Optim1 Wipes are available on our site here.

Monthly or 50 Cycles

Clean the Door Gasket and Chamber Face Side
  1. Clean the door gasket and the outer edge of the chamber with a non- abrasive cloth moistened with clean water.
  2. Rinse with clean water.

Note: when the seal is new it might be necessary to hold the door gently closed at the sterilization start. 

The W&H Lexa Door Seal is available on our site here.

Clean the Chamber and Chamber Accessories
  1. Remove the trays and the chamber rack.
  2. Clean the chamber with a damp sponge and a mild detergent solution paying attention not to bend or damage the temperature probe inside the sterilizer chamber.
  3. Rinse with water.
  4. Clean the trays and the chamber rack with a damp sponge and a mild detergent solution.
  5. Rinse with water.
  6. Reposition all pieces of the chamber accessories properly.

Note: The trays and the tray holder may also be cleaned in a washer disinfector.

Clean the Chamber Filters
  1. Allow the sterilization chamber to cool down.
  2. Empty the sterilizer chamber by removing the trays and the rack.
  3. Remove the filters at the bottom of the chamber (bottom/center) by unscrewing them.
  4. Rinse the filters with tap water.
  5. Insert the filters in their original position, screwing them into place. 

The W&H Lexa Chamber Filters are available here on our site.

1,200 Cycles or Yearly

Replace the Door Gasket, Chamber Filters, and HEPA Filters

Notice: The door gasket needs to be replaced every 1200 sterilization cycles or once a year, whichever come first. A replacement message alerts when replacement is due. If the consumables is replaced prior to the message, you have to reset the consumable cycle counter. 

  1. Open the chamber door.
  2. Remove the used door gasket by hand.
  3. Carefully clean the seal seat and the inside face of the chamber door. 

The W&H Lexa PM Kits are available on our site here.

Final Thoughts

If you’ve reached this point, then you should have a good understanding as to what your maintenance schedule should look like. But if you still have questions or there’s help you need, we’ve got options. You can call us anytime at our tech support line at 704-966-1650, Option 3 for free tech support. Or we have our Free Preventative Maintenance ProgramWhich allows you to submit information on your machine, and WE call YOU whenever it’s time to maintain a part of your autoclave. Our techs will walk you through step-by-step and tell you what part you need and what to do with it.

Hopefully this guide helps you to understand that preventative maintenance isn’t a daunting task as long as you know what to do.


As always if you have any questions about this process or anything else please feel free to contact us and take advantage of our “FREE TECH SUPPORT.”

We also offer FREE VIRTUAL TECH SUPPORT to “See and Talk” with a “Real Time Live Technician” for any problems you may be in need of help with.

You can also use our “FREE MAINTENANCE PROGRAM”. Take the guesswork and worrying about what unit is due for maintenance and which maintenance cycle it is time for. We will keep track of all your autoclaves and let you know when it’s time for anything.


You can find our W&H Lexa collection of parts and units here on our website.

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