Sauna heater wiring
Trying to replace an older sauna heater with a newer unit.
The source from wall has 4 wires.
one RED, one BLACK, one WHITE and another WHITE.
The box on sauna has 3 wires.
one WHITE, one BLACK with '# 1" label on it and another BLACK with '#2"
label on it.
How do I connect these wires?
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