Service Bulletin: How to Replace A Control Board On An FWE LCH Unit – SI-ARB03 Z-500-1058 & SI-ARB04 Z-500-1057

A Step-by-Step Guide to Replacing an FWE Control Board: CNTRL BRD-TS LCH 4.3 G3 / CNTRL BRD-BD LCH 4.3 G3 On LCH Units

Tools Used in this Tutorial

• Replacement Control Panel: Z-500-1057 for SI-ARB04
• Replacement Control Panel: Z-500-1058 for SI-ARB03

Detailed Installation Instructions

1. Unplug the unit from the power source.
2. Remove the top from the unit.
3. Place new control board next to current control board installed in the unit.
4. Transfer wires from current control board to new control board one at time taking notes of location.
5. Once all wires are transferred remove the old control board from the unit.
6. Install new control board on mounting studs and fasten with nuts removed in previous step.
   • Be careful not to overtighten nuts as damage could occur to control board.
7. Check all wires are secured and control board is mounted correctly.
8. Check that all tools and debris are removed from the electrical compartment.
9. Place top back on the unit and plug in.
10. Power the control board on.
11. Once activation is completed and screen shows DAYPART and OVERNIGHT proceed to the next step.
    • If activation fails, please call FWE at 800-222-4393 option 3 for troubleshooting.
12. Press the gears icon in the bottom righthand corner of the screen.
13. Enter 5599 and press green check box.
14. Enter the serial number into the unit and press the check box to store it.
15. Enter 4393 and press green check box.
16. On the lefthand side of the screen press the Date icon.
17. Enter the correct date and time into the unit and press the check box to store it.
18. Press the “I” icon in the bottom righthand corner of the screen.
19. Confirm the serial number, date and time are correct.
20. If everything is correct, let the customer know the unit is fully operational and ready for use

Need Assistance?

If you need further guidance or replacement parts, contact FWE’s support team at 800-222-4393 or [email protected] for personalized help. Your success is our priority, and we’re just a call or email away.