Kohler MPAC 1500 — Modify Upper Door Wiring and Connect Controller Inputs
Installation
For the Kohler MPAC 1500, from the Kohler service manual.
Browse Kohler generators & specs →
Procedure
- Remove the plastic panel covering the components on the upper door.
- Disconnect leads labelled 20 from terminals CCN-1 and CCE-1.
- Cut the terminal off the pair of leads marked 20 and separate the leads.
- Discard the short jumper lead (20) that was connected from CCE-1 to CCN-1.
- Disconnect plug P8 from the upper board. Cut lead 33 (pin location: 15 on plug P8).
- Connect the conversion kit wire harness GM69403 to plug P8.
- Disconnect plug P9 from the upper board; cut the cable ties, separate the harness, and discard the P9 harness.
- Cut the cable ties to release leads 33 and 20.
- Re-route leads 33 and 20 to MPAC1500 Programmable Input 1. Connect lead 33 to MPAC1500 TB1-1; connect lead 20 to MPAC1500 TB1-2.
- Connect lead CCN from harness GM69403 to CCN-1 on the CCN relay and lead CCE to CCE-1 on the CCE relay; route harness with cable ties.
- Remove the circuit board from the upper panel.
- Re-install the upper plastic panel and finish routing the conversion kit wire harness neatly using cable ties.
Source: Kohler 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.