I just installed a new thermostat and my furnace is blowing cold air. My pilot light is on but it still not heating up. My furnace is a clare hecla and the model # is G126-LB-C.

Julian,

So what thermostat did you install and why? Are you sure that you have
wired it correctly? Are you sure that you are operating it correctly?
It sounds as if you have it incorrectly wired.

Dave M.

On Sunday, December 1, 2013 1:05:36 PM UTC-5, jullian browne wrote:
I just installed a new thermostat and my furnace is blowing cold air. My pilot light is on but it still not heating up. My furnace is a clare hecla and the model # is G126-LB-C.

The wires coming out of my wall are blue, green, white, yellow and red.

Red wire is in the h and it it has a bridge wire going to rh
yellow wire is in y
green wire is in g
blue wire is in c
white wire is in w.

i insyalles a ritetemp 6008 because my other thermostate went.

On 12/1/2013 1:05 PM, jullian browne wrote:
I just installed a new thermostat and my furnace is blowing cold air. My pilot light is on but it still not heating up. My furnace is a clare hecla and the model # is G126-LB-C.


did it work before you installed the T stat? Check the wiring and be
sure you used the proper diagram.

On Sunday, December 1, 2013 1:05:36 PM UTC-5, jullian browne wrote:
I just installed a new thermostat and my furnace is blowing cold air. My pilot light is on but it still not heating up. My furnace is a clare hecla and the model # is G126-LB-C.

No it wasnt working thats y we thought it was the thermostat, when it originally went always had to take the thermosat off take the batteries out and put them back in to reset it thats y we replaced it. Now i just cleaned all the dust in the furnace abd its still not coming on but the pilot light stays lit.

On Sunday, December 1, 2013 2:49:57 PM UTC-5, jullian browne wrote:
On Sunday, December 1, 2013 1:05:36 PM UTC-5, jullian browne wrote:

I just installed a new thermostat and my furnace is blowing cold air. My pilot light is on but it still not heating up. My furnace is a clare hecla and the model # is G126-LB-C.



No it wasnt working thats y we thought it was the thermostat, when it originally went always had to take the thermosat off take the batteries out and put them back in to reset it thats y we replaced it. Now i just cleaned all the dust in the furnace abd its still not coming on but the pilot light stays lit.

On Sun, 1 Dec 2013 12:00:02 -0800 (PST), jullian browne
wrote:

Now i just cleaned all the dust in the furnace abd its still not coming on but the pilot light stays lit.

Reset the factory default values on the T stat EPROM?.

Start from there...a paper clip to push the reset button.

On Sunday, December 1, 2013 3:44:32 PM UTC-5, Oren wrote:
On Sun, 1 Dec 2013 12:00:02 -0800 (PST), jullian browne

wrote:



Now i just cleaned all the dust in the furnace abd its still not coming on but the pilot light stays lit.



Reset the factory default values on the T stat EPROM?.



Start from there...a paper clip to push the reset button.

Where is that at?

Julian,

The wires coming out of my wall are blue, green, white, yellow and red.

Red wire is in the h and it it has a bridge wire going to rh

h? Do you mean RC?

yellow wire is in y
green wire is in g
blue wire is in c
white wire is in w.

This sounds ok.
Are you sure that your furnace runs on 24v ac?
Take the cover off and look for stray strands of wire. Fix any strays.
What happens when you switch the fan on?
When you have the fan in the Auto position does the fan turn off when you
drop the temp below house temp?

It's possible that you bought a bad thermostat. I assume that you have
the receipt.

Dave M.

On 12/1/2013 2:49 PM, jullian browne wrote:
On Sunday, December 1, 2013 1:05:36 PM UTC-5, jullian browne wrote:
I just installed a new thermostat and my furnace is blowing cold air. My pilot light is on but it still not heating up. My furnace is a clare hecla and the model # is G126-LB-C.

No it wasnt working thats y we thought it was the thermostat, when it originally went always had to take the thermosat off take the batteries out and put them back in to reset it thats y we replaced it. Now i just cleaned all the dust in the furnace abd its still not coming on but the pilot light stays lit.


Thermocouples are cheap and readily available. I'd start there as they
fail far more often than gad valves.

On Sunday, December 1, 2013 4:01:55 PM UTC-5, David L. Martel wrote:
Julian,



The wires coming out of my wall are blue, green, white, yellow and red.



Red wire is in the h and it it has a bridge wire going to rh



h? Do you mean RC?



yellow wire is in y

green wire is in g

blue wire is in c

white wire is in w.



This sounds ok.

Are you sure that your furnace runs on 24v ac?

Take the cover off and look for stray strands of wire. Fix any strays.

What happens when you switch the fan on?

When you have the fan in the Auto position does the fan turn off when you

drop the temp below house temp?



It's possible that you bought a bad thermostat. I assume that you have

the receipt.



Dave M.

im not sure if it runs on 24v ac the fan constantly runs except when on auto it does nothing. when i was swithching the fan on i heard a clicking noise. i hope i didnt buy a bad thermostat.

On Sunday, December 1, 2013 4:03:38 PM UTC-5, Ed Pawlowski wrote:
On 12/1/2013 2:49 PM, jullian browne wrote:

On Sunday, December 1, 2013 1:05:36 PM UTC-5, jullian browne wrote:

I just installed a new thermostat and my furnace is blowing cold air. My pilot light is on but it still not heating up. My furnace is a clare hecla and the model # is G126-LB-C.



No it wasnt working thats y we thought it was the thermostat, when it originally went always had to take the thermosat off take the batteries out and put them back in to reset it thats y we replaced it. Now i just cleaned all the dust in the furnace abd its still not coming on but the pilot light stays lit.





Thermocouples are cheap and readily available. I'd start there as they

fail far more often than gad valves.

if my pilot light is on can my thermocople still be out. Also someone said something about maybe a limit switch has been tripprd

Julian,

Don't panic yet. Do you have a voltmeter?
Let's measure the voltage between the blue wire and the red wire. Let's
measure the voltage between the blue wire and the green wire. What do you
get?
Did you set the internal switch to gas?
The fan is supposed to run constantly when it is turned on. You should
not get any heat.
What happens when you put the fan on Auto and turn the thermostat up
(wait 5 mins) while the controls are switched to heat? Do you now get heat?
Did you do the tests recommended on pg.8 of your manual?

Dave M.

Julian,

There is no reset button.

Dave M.

On Sunday, December 1, 2013 4:42:14 PM UTC-5, David L. Martel wrote:
Julian,



There is no reset button.



Dave M.

i looked on the thermostat and i didnt see one.

On Sunday, December 1, 2013 4:40:35 PM UTC-5, David L. Martel wrote:
Julian,



Don't panic yet. Do you have a voltmeter?

Let's measure the voltage between the blue wire and the red wire. Let's

measure the voltage between the blue wire and the green wire. What do you

get?

Did you set the internal switch to gas?

The fan is supposed to run constantly when it is turned on. You should

not get any heat.

What happens when you put the fan on Auto and turn the thermostat up

(wait 5 mins) while the controls are switched to heat? Do you now get heat?

Did you do the tests recommended on pg.8 of your manual?



Dave M.

thanks dave im going to try all the things you recommended in the morning then i will post the outcome on my way to work now.

On Sun, 1 Dec 2013 12:51:06 -0800 (PST), jullian browne
wrote:

On Sunday, December 1, 2013 3:44:32 PM UTC-5, Oren wrote:
On Sun, 1 Dec 2013 12:00:02 -0800 (PST), jullian browne

wrote:



Now i just cleaned all the dust in the furnace abd its still not coming on but the pilot light stays lit.



Reset the factory default values on the T stat EPROM?.



Start from there...a paper clip to push the reset button.

Where is that at?

At a button - or a hole; perhaps on the back of the unit. I can't see
it from this view. Never read your manual, either.

OR:

"...Set the T-stat to "off," install batteries backwards for five
seconds. Remove batteries and reinstall correctly. This should reset
it to factory specs. After that you'll have to reprogram it. "

On Sun, 1 Dec 2013 16:42:14 -0500, "David L. Martel"
wrote:

Julian,

There is no reset button.

Dave M.


Are you certain? The OP suggests the T-stat is on a wall, I presume
in a hallway.

Oren,

Tell us where you believe that the reset button is. You can download the
installation/owner's manual he
http://www.ritetemp-thermostats.com/...tion_guide.pdf
There is no mention of a reset button.
What drawing or diagram are you working from?

Dave M.

On Sunday, December 1, 2013 12:05:36 PM UTC-6, jullian browne wrote:
I just installed a new thermostat and my furnace is blowing cold air. My pilot light is on but it still not heating up. My furnace is a clare hecla and the model # is G126-LB-C.

The OP neeeds to apply voltage directly to the gas valve using some clip leads or wires. He needs to find out what voltage and where to apply it.

Sounds like he really needs to get professional help, or at least a very handy neighbor with a voltmeter, and paper and pencil to sketch out how the circuit and the auxiliary equipment is connected and then post that info here.

On 12/2/2013 8:43 AM, wrote:
On Sunday, December 1, 2013 12:05:36 PM UTC-6, jullian browne wrote:
I just installed a new thermostat and my furnace is blowing cold air. My pilot light is on but it still not heating up. My furnace is a clare hecla and the model # is G126-LB-C.

The OP neeeds to apply voltage directly to the gas valve using some clip leads or wires. He needs to find out what voltage and where to apply it.

I would jumper red to white at the furnace - which should do the same
thing. There should be 24V at the gas valve. If the burner does not come
on it is likely the thermocouple.


Sounds like he really needs to get professional help, or at least a very handy neighbor with a voltmeter, and paper and pencil to sketch out how the circuit and the auxiliary equipment is connected and then post that info here.

On Mon, 2 Dec 2013 08:18:57 -0500, "David L. Martel"
wrote:

Oren,

Tell us where you believe that the reset button is. You can download the
installation/owner's manual he
http://www.ritetemp-thermostats.com/...tion_guide.pdf
There is no mention of a reset button.
What drawing or diagram are you working from?


Dave M.

I was wrong. The last 3 digital T-stats I've owned all had a factory
default button. My bad.

On Sunday, December 1, 2013 1:05:36 PM UTC-5, jullian browne wrote:
I just installed a new thermostat and my furnace is blowing cold air. My pilot light is on but it still not heating up. My furnace is a clare hecla and the model # is G126-LB-C.

Was your furnace not working when you installed the new thermostat?

Or did you just decide you wanted a new thermostat? In that case put the old one back on and see if your furnace starts working again.

I was having the same problem but mine was an easy fix. After reading all of the comments I started with the easiest step first. Installing the batteries backwards for 5 seconds in the off position worked.