speed controller [replaces older fan speed resistor] for ~12 speed heater fan controller
I may be able to get a new one locally [christchurch] if required.
3 terminal device
guess 1 terminals
one terminal going from low [0v] to hi [~5 ~12v] pulled high via speed control brain
one terminal ground
one terminal to heater fan
heater fan
one terminal to speed controller
other terminal to batt +
guess 2
one term going from hi to lo [12v to 0v] pilled low via speed control brain [heater control]
one terminal to batt+
one terminal to heater fan
heater fan
one terminal to speed controller
one terminal to ground
wizard speed controller .jpg
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