Yes, it is typically possible to upgrade a Webasto 2000 STC rotary controller to a later generation digital controller timer. It is necessary to learn if you have a suitable wiring harness to allow this upgrade, highly likely if you purchased in the UK from a reputable Webasto dealer.See image from Webasto manual.
You need to have both x9a and also x9c 4 pin plugs to allow this upgrade. Please let me know, if you require further information please email sales@butlertechnik.com
Thank you,
Regards, David
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