During use, liquids had leaked around the control buttons and corroded parts on the control board. This caused the control board power supply to fail, preventing the power button from working (before total failure, the pulse button failed first, but the other buttons worked so it was usable).
I assume this is a common proble
... Read morem. The button seals are not designed well so eventually they will leak and damage the circuitry.
1- Remove the bottom. The screws are under the 4 rubber feet.
2- Lift out the vertically mounted PC board to expose the control board
3- Remove the screws that secure the control board
4- Disconnect the 2 ribbon connectors from the control board carefully using a blade to separate the two halves where they join
5- Pull out the control board
6- Remove the buttons and rubber membrane and clean them off and dry thoroughly.
7- Optional: I sealed them with clear silicone caulk
8- Plug in the new board and put it all back together
You can carefully test it before reassembling but be careful of high voltages and big capacitors that can store charge even when the unit is unplugged. To test you will need to push in the safety interlock or the motor wont run.
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Model Cross Reference
This part works with the following models:
ERP Number: ERP12008612
Manufacturer Part Number: SP0010353
This part is in stock in our warehouse and will ship out within 1 business day of the order being placed.
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