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Posted on October 6, 2022June 1, 2023 by Paul Barton — Leave a comment

Hawk Control Box (76840) Software Update & Control Panel Pairing (77438) Made Simple

Blog Featured Images 28-

In this post, we show you how to upload the software to the 76840 Hawk control box for Hot Spot spas and how to configure and pair the 77438 control panel to the control box.

Table of Contents

Step 1. Disconnect power to the tub.

control panel

Step 2. Remove the control box cover.

Step 2 Remove the cover-

Step 3. Verify that the red wire is correctly connected. J17 is for permanently connected 230 volt spas. J13 is for 120 volt or 230 volt convertible spas.

Step 3 Verify jet 12 wire-

Step 4. Locate the USB port and plug in the flash drive.

Step 4 plug in the flash drive 2-

Step 5. Reconnect power to the tub.

Step 5 Reconnect power-

Step 6. The green BUS light will blink and the red heat light will turn on while the software is loading. This will last about 15 to 20 seconds. Then you will hear a click. The BUS light will turn solid green when the upload is complete.

Step 6 Red heat light on 1-

Step 6 Green BUS solid when complete 1-

Step 7. The new software version will appear on the control panel screen. Verify that the updated software matches the software on the control box configuration instructions.

Step 7 Verify software-

Step 7 verify software on instructions-

Step 8. Locate and press the SET UP (SW1) button.

Step 8 Press SW1 button-

Step 9. Press the MODE UP button twice for the jumper settings menu.

Step 9 press mode up button-

Step 10. Find the jumper settings for your spa on the control box configuration instructions.

Step 10 find jumper settings-

Step 11. Begin setting soft jumpers.

Step 11 set soft jumpers-

Step 12. Disconnect power to the tub.

Step 12 Disconnect power-

Step 13. Remove the USB flash drive.

Step 13 remove the flash drive-

Step 14. Replace the control box cover.

Step 14 Replace the control box cover-

Step 15. Reconnect power to the tub. You’re all done!

Step 15 Reconnect the power-

Watch The Video Here: Hawk Control Box (76840) Software Update & Control Panel Pairing (77438) Made Simple

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