hi,
Need help on switching ideas for instant water heater that has float switch to turn heater on. So the problem is i added a 12v d/c pump, was hoping to tap on the float switch to turn on the a/c d/c converter to power the small 12v pump. as soon as i tap on the a/c d/c converter the switch contacts gets welded together because of spark(arc). tried adding a home made snubber with .1uf and 120ohm resistor in parallel to the a/c d/c converter lines and didn't seem to help at all. so i have installed the pump and the reed switch is already busted with no way to use both. when i turn on the water valve. I will be replacing the reed switch once i get a replacement. but am lost to how to turn on the pump simultaneously when the water heater turns on.
thanks
Need help on switching ideas for instant water heater that has float switch to turn heater on. So the problem is i added a 12v d/c pump, was hoping to tap on the float switch to turn on the a/c d/c converter to power the small 12v pump. as soon as i tap on the a/c d/c converter the switch contacts gets welded together because of spark(arc). tried adding a home made snubber with .1uf and 120ohm resistor in parallel to the a/c d/c converter lines and didn't seem to help at all. so i have installed the pump and the reed switch is already busted with no way to use both. when i turn on the water valve. I will be replacing the reed switch once i get a replacement. but am lost to how to turn on the pump simultaneously when the water heater turns on.
thanks