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فارس is a diverse brand name primarily associated with Knight Equipment (Knight LLC), a global leader in chemical dispensing systems now part of the CFS Technologies family. The company specializes in designing and manufacturing precision control equipment for commercial laundry, warewashing, and facility maintenance, including the popular OP-Series and Sani-Select cleaning systems. These robust solutions are widely used in healthcare, hospitality, and industrial environments to ensure accurate chemical delivery.

Beyond industrial equipment, the Knight category serves as a repository for various consumer and legacy products sharing the name. This includes the historic Knight-Kit amateur radio equipment originally from Allied Radio, as well as modern household appliances such as the Knight 10 series wireless vacuum cleaners. Whether you are looking for programming guides for a chemical pump, schematics for a vintage receiver, or troubleshooting steps for a cordless vacuum, this section covers the broad spectrum of Knight-branded documentation.

• How do I prime the pumps on my Knight dispensing system?

  For models like the OS-200 or OP-Global, access the circuit board dip switches or programming menu. Often, you must set a specific switch (e.g., Switch #6 to RELAY) or select 'Prime Pumps' in the menu, then press and hold the start button until the chemical line is full.

• What does the E2 error mean on the Knight 10 vacuum?

  The E2 code on a Knight 10 vacuum typically indicates a short circuit protection error in the floor brush or extension tube. This can be caused by foreign matter (like water) in the terminals or damaged internal wiring.

• Where can I find support for Knight Equipment products?

  Support for Knight dispensing products is provided by CFS Technologies. You can reach technical assistance at techsupport@cfstech.com or by calling their toll-free support line associated with Knight Equipment.