Cummins/Onan — LonWorks Card - Remove and Replace (3200)
Repair & overhaul
From a Cummins/Onan service manual — check it applies to your exact model before use.
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Procedure
- Disconnect batteries
- Remove old LonWorks card and install new one
- Reconnect battery
- Connect laptop to control, enable LonWorks card, load feature code onto the control, cycle power to the control
- Commission LonWorks card
Tools required
- Laptop Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Source: Cummins/Onan service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.