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Welcome to our Aftermarket Services Customer Portal home page. This customer portal supersedes our original LummusOnline Technical Service web site. It is dedicated to providing on-going technical support for Lummus Technology customers. The action cannot be completed. Lummus Technology Aftermarket Services Login (Enter Username and Password) Note: Fields marked with '*' are mandatory. Username: * Password: * Login Click Here for forgotten and expired username and password Click Here to register for an account Click Here to contact Aftermarket Services Click Here for Ethylene Furnace Training