Original message
| axeslayer666
 |  "Thermostat Problem"
, posted Thu 23 Oct 21:33  
Hi,
I have a Ritetemp thermostat and a Unico system. The problem is that when the heat is supposed to go on it does not. The thermostat recognizes that the current temp. is below the target temp. and the 'Heat' icon blinks on and off, but the heat does not turn on, or at least the fan is not turning on. The cooling works fine, no problem. Im wondering if maybe there shouldnt be a wire connected to the B terminal? The terminals that are currently connected are C, B, W, Y, RH, RC, and G. Another thing that confuses me are the jumper settings. I'm really not sure what these should be set on. Here's the possibilities: RC-RH connected/separate (im assuming they should be connected), Elec Heat/No fan, HP-AUX only/normal, Gas/oil heat/No fan, Heat Pump/normal. The settings that I had had it on was RC-RH connected and Gas/oil Heat. although now im wondering if maybe it should be on heat pump? or electric? thanks for your help!!
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Replies:
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| KrapfHomes
| "Re(1):Thermostat Problem" , posted Sun 26 Oct 10:34
I think I can help, but I need some more info. What kind of system do you have? Did you replace the t-stat and now the system is not working properly, or are you troubleshooting an existing t-stat?
Based on the Rh wire this does not sound like a heat pump. Regardless the Rh wire should be connected to the R terminal in the t-stat. The Rc wire should be connected to the Rc terminal in the t-stat.
The rest of the wiring is system type specific. You can't wire a heat pump like a conventional system and vice versa or damage is a sure result.
It always takes less time to do something right once than to do it wrong and try to fix it later.
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| Zzz
| "Re(1):Thermostat Problem" , posted Thu 23 Oct 23:25
call a tech before you fry something. Heat pumps are confusing even to techs sometimes. If you don't now you will later when you let the smoke out of something
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