Could be a faulty power button tactile switch on the display/control board.
Use an Ohmmeter to check if the switch is faulty.
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If it is and you can't find a replacement switch, search online for [https://www.ebay.com/itm/405319669924|5304536384] to find suppliers of the control board. (example only)
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If it is and you can't find a replacement switch, search online for [link|https://www.ebay.com/itm/405319669924|5304536384] to find suppliers of the control board. (example only)
Seems like all the models use the same board. Check the number on the board to be sure before you order one
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=== Update (06/12/25) ===
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Hi @davidripp
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The control board is directly behind the control panel, so you would have to figure out how to remove the panel to gain access to it.
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It may be that the actuating pin of the On/Off power button is not operating the switch on the board.
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Here's an image of the board showing the switch that may help.
Hi @davidripp
Could be a faulty power button tactile switch on the display/control board.
Use an Ohmmeter to check if the switch is faulty.
If it is and you can't find a replacement switch, search online for [https://www.ebay.com/itm/405319669924|5304536384] to find suppliers of the control board. (example only)
Seems like all the models use the same board. Check the number on the board to be sure before you order one