Just installed Omnistat2 thermostat but I get a error message "outside sensor fault". I don't have a outdoor sensor but is there away to get around not using a sensor & if you can't can you use a Model 31a00-7 extended range temp. sensor? Also can't figure out why my thermostat isn't talking to my controler Omni LT. I use serial from my computor to controller and then a three wire to my thermostat. Not sure, must be maybe Communications Mode settings. I went with 9600 system Baud & 9600 with expansion baud. I have a heat pump single stage cool & three stage heat. Have furnace with electric heat back up. Of course my heat pump is locked out and running with back up heat now. Any suggestions? I'm getting a refrigeration teck. to come in to look at it but he might not know some of the HAI configurations. Thanks
Omnistat 2 Error Message "outdoor Sensor Fault"
- Thread starter Dhanson
- Start date
Thanks for the information. You are right, it should of been 300 & 1200. The setting for the thermostat should of been Heat Pump not duel heating source/heat pump, that's why it was lock out because for that type of setting you need a outside temp. sensor because if it gets to cold the sensor shuts off the heat pump all together and the other source of heat such as a gas furnace kicks in. So one or the other works not together. But as for a electric heat backup, this heat can come on and help the heat pump and work together. So I got everything working so thanks .
