C-20N-A Old Red Controller for Classic Amethyst Mats

Video How to Use Red-Black Controller C-20N-A for MediCrystal® Classic FIR Mats 2015-2018

This small digital controller C-20N-A can be used on small sizes of Classic MediCrystal FIR Amethyst Mats (like a Mini Mat) and Belts of 2015-2018 production years with an old connector type A.

In 2018-2019 this controller was replaced by the controllers L-40N-B, H-40N-B, H-60N-B and the new connector type B on the mats/belt receptacle part.

The controllers with connector type "A" (5-pins) and the connector type "B" (3+2-pins) are not interchangeable.

If the controller shows OF or errors it means that either time set is over and the timer should be reactivated or connection between the mat and the controller is not tight enough and it is recommended to reconnect.