Salter Brecknell Model 311 Disassembly

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Inspect the circuit board

Check back and front of circuit board for liquid damage.
Sometimes you can see damage from the back, but if you inspect the front side, it should be very obvious.
If brown stains are visible on the board, there is likely liquid damage on the board.
If you find liquid damage, unscrew the mini screws, and replace the board.
You will need to re-solder the electrical cables if you replace the board.

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