SmartThings Community

GE Z-Wave Wireless Smart Fan Speed Control, 3-Speed, In-Wall

(Dale C) #31

I would not recommend doing two of these commercial ceiling fans with one GE Smart Fan Controller. Try removing one of the fans and see how it performs.

edit: The GE 12730 allows for up to two fans to be connected but your Canarm fan pulls 0.84amps at high speed so two of these will be over the specified max amp rating of 1.50amps of the GE 12730

Best I can tell you have the wiring correct to the GE controller connected to the motor so if it still doesn’t operate the medium speed correctly I would investigate changing the threshold that triggers the medium speed in the device handler.

(Charles) #32

[quote=“CAL7, post:17, topic:86374”]
I measured the actual rotation speeds at low=32rpm, medium=61rpm. The specs give the high at 292rpm, which I don’t doubt.
Given all the help - which I greatly appreciate! - I should have mentioned that I have the switch actually controlling two of these fans in parallel with mirrored performance. Is it possible the load is more than the switch can handle and that causes a reduced speed but only on the low and medium settings?
[/quote]With the advice here to use just one fan, I finally was able to get to the wiring and disconnect one fan to test a single fan load on the switch.

It’s - I guess no surprise - just about double the speed of two fans on the same 12730 switch. Low=61 rpm, Med=125 rpm.

This leaves me in something of a quandary. The low speed is still nearly useless but the medium speed is acceptable though my experience of it tells me that something like 60% (perhaps 180 rpm) of the max works be a good setting for medium.

Needing two circuits and two switches seems to be the inevitable conclusion, but that means wiring changes. One option, that might end up being the cheapest, is to use the Home Depot / Hampton Bay 4-speed controller that also has the benefit of a 4th speed. With that I have the inconvenience of two remotes when I don’t really want separate controls except for the necessity of having two speed controllers for the motors. I know I’m rambling, but any ideas are welcome.


Using core, you should be able to have one fan follow the other if you want. There might be a slight delay before the second fan kicked in, but it should only be a few seconds. It would be worth a try, anyway. :sunglasses:

(Charles) #34

I use webCoRE now to control both fans with the one 12730 switch so I have been imagining the new piston I will need to control both.

So, here’s my plan: order two of the parts-only variant of the receiver. Rip out the 12730 and replace with a simple $1 on/off wall switch (taped ON) or just nut the switch line+ load. I don’t think I need a fan-specific remote because I’ll misty use webCoRE automatons with the occasional repurposed minimote button push to override, i.e. push 1-4 for fan#1 & hold 1-4 for fan#2.

In addition to the upside of getting - I hope - the fan speeds I want, there is additional WAF by separately controlling the two fans. This is going to be one complicated webCoRE piston.

(Jason Bush) #35

Maybe I missed something in the post, but my immediate though was…Why can’t you just change the low, medium, high setpoint? That’s what i did with mine when I didn’t like the preset speeds.

(Charles) #36

[quote=“Jason_Bush, post:35, topic:86374”]
Maybe I missed something in the post, but my immediate though was…Why can’t you just change the low, medium, high setpoint? That’s what i did with mine when I didn’t like the preset speeds.
[/quote]I’m - definitely - not the expert, but I believe the DTH uses those setpoints to map to the switch’s actual low-med-high. For now, my DTH uses 33% and 66% for the medium and high thresholds. The GE 12730 is only capable of three speeds that are fixed within the switch. I could move the setpoints to, say, 90 & 95, but at 92% the fan would still only turn at the fixed medium speed of the switch (and in my case, only half the speed because I’m splitting the switch output to two motors).

I defer to the experts, @JDRoberts @dalec @Navat604 , to better explain or correct.

(Jason Bush) #37

Honestly that makes sense…but I’m almost positive that I noticed a change when adjusting it. Anyway, good luck!

(Dale C) #38

I don’t follow how do you control your fan speed without a fan control switch? What is the minimote controlling?

Not exactly, you have options.

  • Only use one remote but it would control both zigbee fan devices via a simple SmartLighting application you have one fan follow the other fan speeds.
  • I haven’t tried this yet but it might even be simpler. I have used multiple remotes to control a single fan successfully but I haven’t tried setting the dip switches so that a single remote controls two fan devices.

(Charles) #39

Hi, Dale. I think I’m using the wrong terminology. Here’s what I mean:

  1. One circuit controlled by a dumb switch (which will never actually be used - just there to fill the hole in the box on the wall. The switch will always be on.

  2. On that circuit, two identical fans that inherently have no on/off/speed control.

  3. Each fan will have one of the Zigbee controllers, so each is separately controlled by ST.

  4. One complex webCoRE piston that sets each fan speed according to temperature or MiniMote button pushes or WAF.

I have prepped everything - just waiting on the two Zigbee controllers (any day now) - so if you see a flaw in the plan, please advise.

I do have one specific question: the speed control piston is much more elegant if I can use a variable setLevel, i.e 25% 50% 75% 100%, instead of Low/ Med/ MedHi/ Hi. Saves me from a bunch of ifs. Does your DTH recognize percentages for the speed?

(Dale C) #40

That is great. You will be able to use that switch as a way for resetting the controller when necessary.

That is the way the GE Smart Fan Controller works by thresholds to achieve discrete speeds within an analog 0-99 setLevel variable. This zigbee device simply uses binary on-off for each of the speeds independently. Sorry.

You can always try the beta smartapp for 4-Speed Fan Thermostat control if the WebCoRE version becomes too complex. Just look down the page a little to see the info.

[BETA v0515] Hampton Bay Zigbee Ceiling Fan/Light Controller
(Paul) #41

Quick question about the GE smart fan controller and the harmony hub. I have the harmony controller that controls smartthings devices. I can turn the fan off and on, and adjust the speed with a rocker switch. Only thing is that since smartthings controls the fan like a dimmer, I have to press the down button several times to slow down the fan. In the harmony app it sees it just as a dimmer as well. Its just a bit annoying


what is your quick question?

(Paul) #43

Sorry, the question was. Is there a way to have the harmony adjust the fan speeds with just one up or down click, vs having to “dim” the fan until it reaches the right level to change the speed.


not sure if this would work for you:

see if switching device handlers for your fan works better with your use case

(Paul) #45

Yes, I’m actually using that one. It really just uses “buttons” to set the dim level to a custom level, like High is 75%, med is 50% and low is 25%. Works great when using the app. I can also use the echo to say “Set fan to 50%” which also works just fine. Thing is when I’m watching TV. I don’t want to have to open the app, or yell at the echo. The Harmony remote does “work”, but it sees the device as a dimmer, so what it does is changes the dim level by a few % each time I click the down button. eventually I dims enough to change the speed to the next threshold.

was really just hoping someone had come up with a creative way to have the harmony set the dim level to preconfigured levels like the custom DTH


I see. I have harmony as well and see how that would be crazy annoying…I have to dust off my harmony to get my annoying level up to help with finding a harmony solution…strength in numbers :sunglasses:

(Paul) #47

I’m thinking webcore might be able to do this for me. Gonna play a little bit, and get back

(Scott G) #48

Take note of the % that it changes by with a single press. If it’s consistent, then modify the setLevel() command to look for a change of that % and instead modify the speed up/down as appropriate.

If it’s not consistent, you’ll have to do more work. Maybe check that it isn’t exactly at the Low/Med/High percent and if not, if it’s higher than previous level go up one speed level; otherwise go lower.

(Joshua) #49

Any chance you have a link to one? I just installed my fan switch and was bummed that it was showing as a dimmer


Here you. I use this one.