33MSPA-1-AS
1• Remove the plastic cover and measure
the voltage to the heater terminals (P31
& P32) on the board.
If you do not read ≈230 VAC, replace
the board.
If the "Heater" marker is displayed but the spa is still not heating, proceed as
follows:
2• If the voltage reading is correct, verify
if the two heater wires are properly
connected both to the board and to
the element.
If necessary, tighten the two wires
both to the heating element and to
the board.
3• If the problem still persists, replace the
heater referring to the "How to
Replace the Heater" section of this
manual.
TROUBLESHOOTINGSpa Is Not Heating!
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