Turning a pump off when a blower comes on

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i'm trying set little automation project. have wood doctor, wood-fired water heater. has temperature controlled blower. use blower turning on turn circulating pump off time interval. have sorted turning circulating pump off , on, not input blower. suggestions appreciated.

you wire relay in parallel blower motor , check see if relay closed. or might use current sensor on 1 of blower lines.  allows monitor current draw of blower motor


Arduino Forum > Topics > Home Automation and Networked Objects > Turning a pump off when a blower comes on


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