INSTEON Thermostats

Posted on
Mon May 21, 2018 3:45 pm
jay (support) offline
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Re: INSTEON Thermostats

We don't.

Jay (Indigo Support)
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Posted on
Sun Sep 13, 2020 1:53 pm
Frozenman offline
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Joined: Dec 11, 2017

Re: INSTEON Thermostats

I just purchased a new Insteon 2441TH. I replaced an existing 5-wire thermostat with the new one. I double checked the proper color coding at the AC end of the 5-wire cable. Keep in mind that the previous thermostat was working fine.

The new thermostat does not light up, the time does not display - the screen is totally blank.

Any advise for further troubleshooting?

I replaced the original thermostat since I wanted the AC to work :) which it now does...

I'd be open to other suggestions for an Indigo-controllable thermostat.

thanks!

Posted on
Sun Sep 13, 2020 4:21 pm
ELWOOD offline
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Location: Ramsey, NJ

Re: INSTEON Thermostats

The insteon T-stat needs both the 24 com and 24R connection from the 24 volt transformer in your heating system. If the old T-stat had a battery in it it probably does not have the 24com wire. If you have a volt meter check that you have 24 volts ac at the top two terminals. (24com, 24R). If there is no voltage that is your problem,

Elwood

Posted on
Mon Sep 14, 2020 5:59 am
Frozenman offline
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Joined: Dec 11, 2017

Re: INSTEON Thermostats

thanks
On the old thermostat, the blue wire is connected to RC and the red wire is connected to RH. I don't measure any voltage across those 2 wires :(

I'll go look at how they are connected at the AC end -

thanks for the pointer

Posted on
Sun Sep 20, 2020 9:56 pm
Frozenman offline
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Joined: Dec 11, 2017

Re: INSTEON Thermostats

Well as it turns out while the thermostat end had all 5 wires, the ac end was non-standard. The blue wire was connected to the R terminal on the air handler. So some rewiring was indeed required. I think I have it figured out. Thanks for the pointers.


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Posted on
Sun Jun 27, 2021 9:09 pm
pgershon offline
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Joined: Jul 10, 2004

Re: INSTEON Thermostats

One of my Venstar T-1700 insteon thermostats just died. Are there any internet/wifi thermostats supported by Indigo, or i say best bet to simply buy an Insteon 2441th on sale for $24.50? I have 4 other T-1700 units in my home.

Posted on
Mon Jun 28, 2021 9:06 am
jay (support) offline
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Location: Austin, Texas

Re: INSTEON Thermostats

There are plugins for a variety of other thermostats.

For a more reliable but similar capability I highly recommend Z-Wave thermostats - they are much more reliable than the Insteon thermostats and can be used pretty much exactly as you used the Insteon thermostats.

Jay (Indigo Support)
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Posted on
Mon Jun 28, 2021 9:38 am
pgershon offline
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Re: INSTEON Thermostats

Thanks. Actually after I went to Indigo (as opposed to the thermostat itself). I found that the cool set point had somehow gotten to 132 degrees and this showed up on thermostat as 0F. Using Indigo, I reset set point back to 71 degrees and all is fine again. I've seen set point go to the wrong value before, but never so high that it would not display (or permit adjustment) on the thermostat itself.

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