Gas and Oil Home Heating Furnaces - Trane Weathertron - New Thermostat
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grnlady99
11-11-01, 06:46 AM
We have a Trane Weathertron TWV 024V14FA1 heat pump. We installed a new thermostat and tried the AC mode and it worked fine. When we switched it to heat nothing happened. Tried AC again and now nothing happens at all. Is it possible we shorted something. Is there a way to try resetting it? What can we do? There is a letter T on the old thermostat wiring which had a brown wire attached to it. The replacement thermostat we used is a LUX LHP 750 Versatile Heat Pump Thermostat. The connections offered no letter T. The connections were as follows for the LUX model:
O - cool relay
B - heat relay
X - green aux light
Y - compressor contractor
E - emergency heat relay
WC - aux heat relay
G - fan relay
R - 24 vac
The original was the Weathertron:
G - green
Y - yellow
T - brown
X2 - black
R - red
O - orange
W - white
B - blue
Help us please! Thanks, Linda
PS We originally replaced the thermostat because the fan seemed to continue running after the other operations had stopped. We uninstalled the new thermostat and tried reinstalling the old one but still nothing. There seems to be no power to or from it at this point. Thank God we live in Florida and it is neither hot nor cold right now. Any suggestions will be greatly appreciated:confused: Thanks, Linda
O - cool relay
B - heat relay
X - green aux light
Y - compressor contractor
E - emergency heat relay
WC - aux heat relay
G - fan relay
R - 24 vac
The original was the Weathertron:
G - green
Y - yellow
T - brown
X2 - black
R - red
O - orange
W - white
B - blue
Help us please! Thanks, Linda
PS We originally replaced the thermostat because the fan seemed to continue running after the other operations had stopped. We uninstalled the new thermostat and tried reinstalling the old one but still nothing. There seems to be no power to or from it at this point. Thank God we live in Florida and it is neither hot nor cold right now. Any suggestions will be greatly appreciated:confused: Thanks, Linda
Sharp Advice
11-12-01, 01:03 PM
Hello grnlady99. Welcome to the Heating and Cooling Appliance forum and our Do-It-Yourself Web Site.
I am not an expert in the field of heat pumps. My intent here is to reply to your question for 2 reasons.
#1
Suggest you reinstall the orginal thermostat and see what happens. Just be positive you reinstall it exactly as it was prior to removal. Hopefully, no damage to the heat pump has occured and you'll have heat until you get a reply from a professional on this topic from our web site here.
#2
My replying to you here will help to keep your topic {your question} date wise current and one of our moderators with experience on heat pumps will see it and offer a reply.
Your should go back to your orginal question and click the edit button and edit your question. Add the reason why you changed thermostats in the first place. This may shead some light on the current cause of the problem. Also note if there where any problems with either the old thermostat or heat pump which prompted the thermostat change.
Regards & Good Luck
Gas Appliances Forum Moderator
Tom_Bart.... Enterprises
Energy Conservation Consultant & Natural Gas Appliance Problem Diagnostics Technician.
I am not an expert in the field of heat pumps. My intent here is to reply to your question for 2 reasons.
#1
Suggest you reinstall the orginal thermostat and see what happens. Just be positive you reinstall it exactly as it was prior to removal. Hopefully, no damage to the heat pump has occured and you'll have heat until you get a reply from a professional on this topic from our web site here.
#2
My replying to you here will help to keep your topic {your question} date wise current and one of our moderators with experience on heat pumps will see it and offer a reply.
Your should go back to your orginal question and click the edit button and edit your question. Add the reason why you changed thermostats in the first place. This may shead some light on the current cause of the problem. Also note if there where any problems with either the old thermostat or heat pump which prompted the thermostat change.
Regards & Good Luck
Gas Appliances Forum Moderator
Tom_Bart.... Enterprises
Energy Conservation Consultant & Natural Gas Appliance Problem Diagnostics Technician.