Original Series – Monitor: How to replace the circuit board (S4 and S4 Bluetooth Monitors)

Replacement of the main circuit board of your Original Series rower’s S4 Monitor or S4 Bluetooth Monitor is a relatively simple task to perform.

As a guide, watch the video below:

Diagram showing the removal of screws from the battery cover of a WaterRower S4 Monitor.

Step 1

Remove screws (2) fastening the battery cover at the rear of the monitor as shown.

Diagram showing the location of the battery cover on the S4 Monitor for WaterRower original series.

Step 2

Remove the Battery Cover as shown.

Diagram of a rowing machine monitor with an arrow indicating a specific removal point.

Step 3

Remove the Batteries as shown.

Illustration showing the steps to remove screws fastening the battery cover of an S4 Monitor.

Step 4

Remove screws (4) fastening the Monitor Board Assembly to the housing as shown.

Diagram showing the connection between a rower's monitor and its main circuit board.

Step 5

Remove Monitor Board Assembly as shown.

Diagram showing the connection of cables for the S4 Monitor of a WaterRower, including an illustration of the monitor interface.

Step 6

Remove the Sensor Wiring Connector as shown.

Diagram illustrating the sensor wiring connector and control panel for the Original Series rower's S4 Monitor.

Step 7

Replace Monitor Board as shown. Be care to ensure that you place the Sensor Wiring Connector correctly. The connector should be oriented so that the red wire is toward the outside edge of the board.

Diagram illustrating the connection between the sensor wiring and the monitor of the WaterRower S4, showing the placement and orientation for proper assembly.

Step 8

Replace Monitor Board assembly as shown.

Illustration showing the original series rower's S4 Monitor, highlighting the location of screws to remove the battery cover.

Step 9

Replace screws (4) fastening the Monitor Board Assembly to the Monitor Housing as shown.

Diagram showing the connection point of a component on the S4 Monitor with an arrow indicating the specific area to focus on.

Step 10

Replace Batteries as shown.

Illustration showing the S4 Monitor with an arrow pointing to the battery cover screws for removal.

Step 11

Replace the Battery Cover as shown.

Illustration showing the removal of screws from the battery cover of a rowing machine monitor.

Step 12

Replace the screws (2) fastening the battery cover at the rear of the monitor as shown.

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