How To Replace The Power Board - mspa Lite Bubble Spa Service Manual

9. Take out the power board from the case
11. Unscrew four screws that fasten heater elements
onto the control box. Dismantle the detection line of
heating, and then disconnect the leads of water switch

4.4 How to Replace the Power Board

1. Take off water inlet and outlet caps
The upper square valve is for inflation
The button round valve is for deflation
3. Deflate spa pool
5. Take out control box from spa pool
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2016 MSpa Service Manual
10. Unplug heater elements cables from the power
board
12. Take out the original heater elements from the
control box and assemble a new heater elements in
reverse order.
2. Remove the control panel
4. Unscrew the check valve plastic nut
6. Loosen four screws on the top lid
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