You need to change the variant coding of the pushbutton controller. I think it can be done without special tools but the HHT can change it if not.

I am going to Aruba for two weeks starting Saturday and I don't have access to the instructions at home; either to read the code or reset it. Hopefully someone else can post it for you or email me in two weeks and I'll fax it to you.

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Steve Brotherton
Owner 24 bay BSC
Bosch Master, ASE master L1
26 years MB technician