Version 1.0, August 2023 1

SolarEdge Home Hub Three Phase Inverter Digital Board Replacement Support kit
This manual describes the procedure for replacing the Inverter Digital Board PN FLD-AG-48B-DIGT-A-01.

Revision History

Version 1.0, August 2023 - Initial release.

Kit Contents

SolarEdge Home Hub Three Phase Inverter Digital Board Support kit.

Required Tools

Torque wrench
4mm hex bit
PH2 Philips screwdriver

Removing the Inverter Cover1.

Set the ON/OFF/P switch to “0” (OFF).

2.

Turn OFF the main circuit breaker in the power distribution panel and wait at least five minutes for the DC voltage inside theinverter to drop to a safe level.
Using a 4mm hex bit, loosen the cover captive screws in the sequence shown.
Release all the screws and remove the cover.

3.
4.

ON/OFF/P switch set to “0” (OFF)Removing the CoverSolarEdge Home Hub Three Phase Inverter Digital Board Replacement - Support kit

Version 1.0, August 2023 2

Removing the Communications Board
1.

Disconnect the antenna cable from the Home Network card.

2.

Disconnect two cables from the Communication board:

SolarEdge Home Hub Three Phase Inverter Digital Board Replacement - Support kit

Version 1.0, August 2023 3NOTE••

Some cable connectors are fitted with locking mechanisms. Press the lever to release the locking
mechanism before trying to disconnect the connector from the socket.
Do not pull on the wires to remove the connector from the socket.

Releasing locked connectors

3.

Using a PH2 Philips screwdriver, remove four (4) screws holding the Communications board in place. Make sure not to let thescrews fall inside the inverter.

Removing the screws holding the Communicaton board

4.

Move the Communications board to the side taking care not to pull on any of the cables still attached to the board.

1.

Using a PH2 Philips screwdriver, remove the three (3) screws (shown) holding the Plastic Linux Adaptor in place.

Removing the Digital Board

SolarEdge Home Hub Three Phase Inverter Digital Board Replacement - Support kit

Version 1.0, August 2023 4
2.

Remove these three screws first

Loosen the fourth screw as shown. Do not remove the screw.

Loosen the fourth screw

3.

Move (rotate) the Plastic Linux Adaptor out of the way.

4.

Using a PH2 screwdriver, remove the screws holding the Digital Board assembly in place.

Moving the plastic Linux Adaptor out of the waySolarEdge Home Hub Three Phase Inverter Digital Board Replacement - Support kit

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5.

Removing the digital board screws

Disconnect the fan’s power cable from the Power Board.

Disconnecting the fan power cable

6.

Carefully pull the Digital Board assembly out from the main board.

7.

Using a PH2 screwdriver, remove the screws holding the fan to the Digital Board and remove the fan.

8.

Removing the Digital Board assembly

Removing the fan

Using a PH2 screwdriver, remove the screws holding the fan bracket to the Digital Board.

Removing the fan bracket

SolarEdge Home Hub Three Phase Inverter Digital Board Replacement - Support kit

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9.

Using a PH2 screwdriver, remove the screws holding the short bracket to the Digital Board.

Removing the short bracket

Installing the Replacement Digital Board
NOTE

Make sure that you have all the necessary screws available before starting the replacement procedure.
1.

Place the short bracket in position on the new Digital Board and, using a PH2 screwdriver and a torque wrench, tighten thescrews to a torque of 1.2N·m (10.6 lbf·in).

Reattaching the short bracket

2.

Place the fan bracket into position on the new Digital Board and, using a PH2 screwdriver and a torque wrench, tighten thescrews to a torque of 1.2N·m (10.6 lbf·in).

3.

Place the fan into position on the fan bracket and, using a PH2 screwdriver and a torque wrench, tighten the screws to atorque of 1.8N·m (15.9lbf·in).

4.

Insert the Digital Board assembly into its mating connector on the main board.

SolarEdge Home Hub Three Phase Inverter Digital Board Replacement - Support kit

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5.
6.

Insert the screws and tighten them to a torque of 1.1N·m (9.7lbf·in).
Reconnect the fan power cable to the Power Board.

7.
8.

Swing the Plastic Linux Adaptor back into place.
Insert the screws and tighten all four screws to a torque of 1.1N·m (9.7lbf·in).

9. Place the Communications board onto position and insert the screws.
10. Tighten the screws to a torque of 1.1N·m (9.7lbf·in).

11. Reconnect the two connectors to their sockets on the Communications board.

SolarEdge Home Hub Three Phase Inverter Digital Board Replacement - Support kit

Version 1.0, August 2023 8
12. Reconnect the antenna cable to the Home Network Module.

Reattaching the Cover Assembly

1.
2.
3.

Place the cover in position and insert the screws.
Using a 4mm hex bit and a torque wrench, tighten the screws to a torque of 4N·m (35.4lbf·in).
Tighten the screws in the sequence shown:Powering ON the Inverter
1.
2.

Reattaching the cover

Turn ON the main AC circuit breaker.
Set the ON/OFF/P Switch to “1” (ON).

SolarEdge Home Hub Three Phase Inverter Digital Board Replacement - Support kit