DIY Chatroom Home Improvement Forum

DIY Chatroom Home Improvement Forum (http://www.diychatroom.com/)
-   HVAC (http://www.diychatroom.com/f17/)
-   -   furanace won't kick on automatically (http://www.diychatroom.com/f17/furanace-wont-kick-automatically-30230/)

36inchflange 10-19-2008 08:40 PM

furanace won't kick on automatically
 
my 22 year old heil furnace will run fine if i manually press the up button on the programable thermostat, but it won't kick on it's own. i replaced the thermostat and it is doing the exact same thing. that makes no sense to me!

biggles 10-19-2008 10:28 PM

what brand and model on that new stat

hvaclover 10-19-2008 10:40 PM

Check for a loose wire at the W or R teminal on the furnace.

Baring that you have a bad stat AGAIN, or some issues with the furnace,

Is it a standing pilot or an electric ignition.

36inchflange 10-20-2008 06:56 PM

it is an electronic spark ignition

36inchflange 10-20-2008 07:04 PM

the furnace is a HEIL NUGJ100AF02 it was a honeywell stat but i already took it back so i dont know the model number. the furnace is running great as long as i manually hit the up on the stat? any ideas.

hvaclover 10-20-2008 07:34 PM

Quote:

Originally Posted by 36inchflange (Post 174512)
the furnace is a HEIL NUGJ100AF02 it was a honeywell stat but i already took it back so i dont know the model number. the furnace is running great as long as i manually hit the up on the stat? any ideas.

I don't follow what you mean by up on the stat.

Do you mean you increase the temp?

36inchflange 10-20-2008 08:44 PM

the furnace should kick on when the temperature falls 2 degrees below the set temperature, but it can drop 10 degrees below set temperature and it will not kick on until i hit the up teperature on the stat. then it runs perfect and shuts off just like it should. could it be a bad gas valve?

hvaclover 10-20-2008 10:15 PM

I'd say there are too many varibles to nail it down with out doing some tests.


All times are GMT -5. The time now is 06:41 PM.


Copyright 2003-2014 Escalate Media LP. All Rights Reserved