I've currently got the 2sp controller left from when I had it on my Taurus fan. I had to upgrade to a dual fan set up to make room for my blower pulley and am now unsure how this is going to work.
From what I can understand, each one wire relay can be used to control one fan. So does this mean one fan runs on low for normal temp control, then shuts off and starts the other on high when it gets up in temp, or when the A/C is on?
I can't say that sounds very efficient? Why wouldn't it run both fans on low and both fans on high? Seems the relays are big enough to take the load?
This brings me to my 2nd concern. I'm half wondering if my low speed relay is even working. It only seems to ever kick on one of the fans (when I wire them individually) and according to the diagram, it's the high speed one. http://www.dccontrol.com/2sp.pdf
Anyone ever have one of these things go bad? Is there a way to test it, or change the relays? Seems to be a sealed (throw away) unit.
From what I can understand, each one wire relay can be used to control one fan. So does this mean one fan runs on low for normal temp control, then shuts off and starts the other on high when it gets up in temp, or when the A/C is on?
I can't say that sounds very efficient? Why wouldn't it run both fans on low and both fans on high? Seems the relays are big enough to take the load?
This brings me to my 2nd concern. I'm half wondering if my low speed relay is even working. It only seems to ever kick on one of the fans (when I wire them individually) and according to the diagram, it's the high speed one. http://www.dccontrol.com/2sp.pdf
Anyone ever have one of these things go bad? Is there a way to test it, or change the relays? Seems to be a sealed (throw away) unit.