43SC-CF & SC-MP Service Manual
Spa Not Heating!
1• Remove plastic cover and measure
voltage between the two heater
screws on the board.
Replace board if you are not
getting a reading of ≈240 VAC.
If "Heater" indicator appears on the display, but spa is still not heating,
carry out the following tests to correct the problem:
2• If voltage reading is correct,
verify if heater nuts are
properly connected to the
element.
If not, tighten nuts to the
element.
3• If problem persists, replace
the element.
If "Heater" indicator lights up on the display:
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