Check the product warranty
You can check the warranty for a product to see if it's active or expired.
From the main menu, click Warranty Lookup.
In the Warranty Lookup section, enter the product serial number.
If the product doesn't have a serial number, go to www.resmed.com for your region to check the warranty period for the product.
Click Next. For a valid serial number, the Product, Device Number and Purchase date fields auto-populate.
Do one of the following:
To begin the return process for the item, click Create Service Return. See Create a service request.
To check another product, click New Search.