Kohler — Firmware Update Procedure
Maintenance · Controller / device firmware
From a Kohler service manual covering: 11EKOZD, 5EFKOD, 9EFKOZD. Check it applies to your exact model before use.
Applies to: Kohler 11EKOZD, Kohler 5EFKOD, Kohler 9EFKOZD
Before you start
- Do not attempt to update firmware on RSA II remote serial annunciators with version 1.0 firmware.
- The Decision-Maker 550 and 6000 controllers require Program Loader software to update firmware (see TT-1285).
Procedure
- Download the new firmware file from the Service Support page, software section, on KPRC. Save it on your PC and note the file location.
- Use a USB cable to connect the device to a USB port on your PC.
- Start SiteTech (Start>Programs>Kohler SiteTech).
- Wait for the program to recognize the connected device.
- Click on Update Firmware near the top of the screen.
- Click Browse and navigate to the directory where the firmware file is stored and click Open.
- Verify the current version number, new version number, and file name; click Update Firmware.
- When the message Firmware Updated Successfully appears, click Close.
- For RDC2, DC2, or VSC with a blank display: disconnect the USB cable, disconnect the starting battery negative lead first, wait 1 minute, then reconnect the battery negative lead last.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Firmware files have the extension .bin (for example DEC3000_v1.1.bin)
- Version number format: [Major].[Minor].[Build], for example 2.3.179
Full service-parts list: Kohler 11EKOZD →, Kohler 5EFKOD →, Kohler 9EFKOZD →
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.