11:34AM | 12/25/04
Member Since: 12/24/04
2 lifetime posts
I have a carrier furnace that will not lite if the stat is set below 71 degress. regards, Don


07:01AM | 12/26/04
Member Since: 12/16/04
54 lifetime posts
Are you saying that if your set point is say 68 degrees and the room temperature drops below 68; that the t-stat will not put the unit in a call for heat? If the Stat is bimetal with mercury switch, the stat may not be level. If its a digital thermostat there may be an off set temperature or anticipator setting that you dont know about that allows the temperature to drop a few degrees below the set point before calling for heat.

Befroe you replace the t-stat, make sure its not the furnace thats the problem. You can take the stat off the wall and expose the wiring behind it on the sub plate. There will be a R terminal and a W terminal

these are the two wires that get connected when the stat calls for heat. simply complete the circuit from the w-r terminal and the furnace should start imediately. If not you have a bigger problem. There may be a small spark when you connect the two wires, this is 24-28 volts, so do not use two hands to complete the circiut, use something like needle nose plyers with one hand. And do not touch any other wire while doing this.

Also when you do complete the circuit you will have to hold this until the furnace has gone through its entire cycle, after you remove the connection the furnace blower should continue to run for about 90 seconds after you release the contact points. Good luck..


11:35AM | 12/29/04
Member Since: 12/24/04
2 lifetime posts

I have carrier furnace that works fine when the temp is set above 71 degress below that it will not light again. Is there a certain gap between the igniter and and pilot light?. The reason I ask is I replaced the spark box and I noticed the part that the plug wire connects to was lose so I tighen it up. Thanks, Niteman


Post a reply as Anonymous

Photo must be in JPG, GIF or PNG format and less than 5MB.


type the code from the image


Post_new_button or Login_button

All bookworms need a good bookmark that inspires them to keep reading. To make this colorful bookmark, cut a rectangular p... It turns out that many bath and kitchen cleansers contain chemicals that are dangerous to the skin and eyes, and often pro... So often we paint tiny nooks white to make them appear larger, but opting for a dark, dramatic wall color like this one—Be... Chocolate-colored walls and large window frames allow the exposed wood beams to take center stage in this small screened p... If you're not crazy about the idea of commingling plants and pool, this modern variation may be more to your liking. The s... Yes, a freestanding garage can become its own tiny house. Artist Michelle de la Vega has all the comforts of a modern resi... There’s nothing like a new set of cabinet hardware to refresh a room. The possibilities are endless: Go modern, rustic, or... Pursue what's known as the stack effect. To achieve it, open the windows on both the upper and lower floors, and as warm a... Like no other floor type, a checkerboard design works wonders to underscore the retro kitchen theme. Vinyl flooring, ceram... Twine lanterns add pops of crafty—but sophisticated—flair to any outdoor setting. Wrap glue-soaked twine around a balloon ... When securely fastened to a tree or the ceiling of a porch, a pallet and some cushioning make the ideal place to lounge. V... Incorporate nature into your lighting scheme by securing a dead tree in a concrete mold and draping your pendant lamp from... For the cost of a can of exterior paint , you can totally transform your porch. Paint the floor a hue that complements yo... In this urban apartment, a standard-issue patio became a serene and green perch by replacing the typical concrete with gro... If you put the washing machine in the mudroom, you can stop the kids from walking through the house in dirty, grass-staine...
Newsletter_icon Google_plus Facebook Twitter Pinterest Youtube Rss_icon