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Furnace not igniting (Comfortmaker RPJ II - electronic igniter) sanmateof 10-27-2006
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Posted by on October 27, 2006, 8:56 pm
I have a Comfortmaker RPJ II gas furnace with an electronic igniter (no
standing pilot light). The furnace and the fan come on when signaled by
the thermostat but the furnace does not light. No flames come out of
the burners. I've tested this with two different thermostats thinking
our old thermostat was not turning on the furnace. But you can hear it
come on. Any ideas what else would keep the burners from lighting/ not
igniting? or what the problem may be? There is no smell of gas. Any
help would be appreciated. Thanks.


Posted by Bubba on October 27, 2006, 9:26 pm
On 27 Oct 2006 17:56:42 -0700, sanmateof@gmail.com wrote:

>I have a Comfortmaker RPJ II gas furnace with an electronic igniter (no
>standing pilot light). The furnace and the fan come on when signaled by
>the thermostat but the furnace does not light. No flames come out of
>the burners. I've tested this with two different thermostats thinking
>our old thermostat was not turning on the furnace. But you can hear it
>come on. Any ideas what else would keep the burners from lighting/ not
>igniting? or what the problem may be? There is no smell of gas. Any
>help would be appreciated. Thanks.

You need a new thermostat. You just got a bad one.
Bubba

Posted by Tony Hwang on October 27, 2006, 9:27 pm
sanmateof@gmail.com wrote:
> I have a Comfortmaker RPJ II gas furnace with an electronic igniter (no
> standing pilot light). The furnace and the fan come on when signaled by
> the thermostat but the furnace does not light. No flames come out of
> the burners. I've tested this with two different thermostats thinking
> our old thermostat was not turning on the furnace. But you can hear it
> come on. Any ideas what else would keep the burners from lighting/ not
> igniting? or what the problem may be? There is no smell of gas. Any
> help would be appreciated. Thanks.
>
Hi,
If it's electronic ignitor(Piezo electric) You can hear it when it's
activated. Zap, zap, click, click kinda sound. If you don't hear it
then ignitor module could e bad. There are many things which can
malfunction. What is trouble code?

Posted by Mo Hoaner on October 27, 2006, 9:52 pm

> sanmateof@gmail.com wrote:
>> I have a Comfortmaker RPJ II gas furnace with an electronic igniter (no
>> standing pilot light). The furnace and the fan come on when signaled by
>> the thermostat but the furnace does not light. No flames come out of
>> the burners. I've tested this with two different thermostats thinking
>> our old thermostat was not turning on the furnace. But you can hear it
>> come on. Any ideas what else would keep the burners from lighting/ not
>> igniting? or what the problem may be? There is no smell of gas. Any
>> help would be appreciated. Thanks.
>>
> Hi,
> If it's electronic ignitor(Piezo electric) You can hear it when it's
> activated. Zap, zap, click, click kinda sound. If you don't hear it
> then ignitor module could e bad. There are many things which can
> malfunction. What is trouble code?

Piezo electric ignition in a gas furnace???? Did you know you have to push
the button every time it calls for heat? I found some replacements for you.
http://web.ivenue.com/allparts/productCat77269.ctlg



Posted by on October 27, 2006, 10:18 pm
The model # of the furnace is GNJ050N12D1.
I don't hear the zap, click sound which used to come before the sound
of flames.
A previous post mentioned a trouble code? Where can I check that?
I don't think it's the thermostat. I replaced my old one thinking that
was the problem. But with the new thermostat the exact same thing
happens: the furnace and fan come on, but the furnace doesn't ignite.


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