Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > HVAC

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 10-11-2010, 05:01 PM   #1
Newbie
 
Join Date: Oct 2010
Posts: 4
Share |
Default

Heat Won't Come on After Installing New Thermostat


I have replace my friends 1971 manual Honeywell thermostat on a Comformaker Model: GDE067AC12AN (1971) with a Hunter Touchscreen Programmable thermostat Model 44860 2 Stage Heat/2 Stage Cool. The A/C works however the heat does not come on. Four wires G,Y,W,RC & RH which are jumped. When I set the Hunter up I programed it as a electric furnace, however it was actually gas and it did not blow hot air when turned on the heat. I put the origianal thermostat back in and now the heat does not come on at all. I verified that the pilot is still lit. I do have a meter if you, if can tell me where to check for voltage.

Thanks

joegaget is offline   Reply With Quote
Old 10-11-2010, 05:16 PM   #2
HVAC / Plumbing
 
Join Date: Feb 2009
Posts: 1,801
Default

Heat Won't Come on After Installing New Thermostat


If you didn't turn off the power you may have shorted transformer / board, fuse. Check for 24v at the gv


Last edited by kenmac; 10-11-2010 at 05:22 PM.
kenmac is offline   Reply With Quote
Old 10-11-2010, 07:51 PM   #3
Newbie
 
Join Date: Oct 2010
Posts: 4
Default

Heat Won't Come on After Installing New Thermostat


Power was shut off at the circuit breaker, instead of at the switch where the furnace was boarded up at, because when the heat was running with the old thermostat and I turned off the circuit breaker the heat turned off.
joegaget is offline   Reply With Quote
Old 10-11-2010, 08:27 PM   #4
Member
 
Join Date: Feb 2010
Location: Vancouver
Posts: 38
Default

Heat Won't Come on After Installing New Thermostat


which pot you use, how's wires for the old thermostat use?
Ballastar is offline   Reply With Quote
Old 10-11-2010, 08:37 PM   #5
HVAC / Plumbing
 
Join Date: Feb 2009
Posts: 1,801
Default

Heat Won't Come on After Installing New Thermostat


With the t.stst calling hor heat check for 24v at the gv
kenmac is offline   Reply With Quote
Old 10-11-2010, 10:29 PM   #6
Newbie
 
Join Date: Oct 2010
Posts: 4
Default

Heat Won't Come on After Installing New Thermostat


Earlier today I put the old thermostat back in however in looking at a diagram I just downloaded, I now realized I also missed screwing down the top right screw of the top layer of the old thermostat when I put it back on. I will also check as you advised for the voltage when I do that in the morning.

Thanks,
joegaget is offline   Reply With Quote
Old 10-12-2010, 03:12 PM   #7
Newbie
 
Join Date: Oct 2010
Posts: 4
Default

Heat Won't Come on After Installing New Thermostat


I now realized I also missed screwing down the top right screw of the top layer of the old thermostat when I put it back on. That was the problem.
The heat is working fine now.

Thanks for your help.


joegaget is offline   Reply With Quote
Reply

Tags
furnace won't ignite, no heat, thermocouple test


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Help with Heat Pump System Wiring AlanScott HVAC 11 10-10-2010 12:19 PM
Installing new thermostat, getting no response fupafupa HVAC 3 05-25-2010 02:01 PM
Which honeywell thermostat should I buy for my Carrier heat pump? mannypp HVAC 29 01-30-2010 02:21 PM
Heat pump thermostat emergency switch joe913 HVAC 2 12-10-2009 12:54 PM
Hunter 44668 Thermostat - Heat won't turn off ToneyRes HVAC 9 10-18-2009 08:50 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.