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bullmastiff135 10-07-2010 11:12 AM

Bryant 394D-0036100 Not Lighting up
3 Attachment(s)
I need some help guy's I have a old Bryant Heater. My pilot light is lit and working in the on position, blower motor running, the problem is that when the system is running the Baffles never light up. Do I need to take them out and clean them , or is it the pilot positioning. Thanks

kenmac 10-07-2010 03:41 PM

Make sure you have 24 v at the valve.. I would have that furnace checked. It was bad design.. Crack / rusted out heat exchanger/ rusted up burners. Also check that limit that is in the chamber just behind the gv ( brown almost square with 2 wires). could be open due to cracked chamber

bullmastiff135 10-07-2010 03:59 PM

Tonight I will look at the stuff you said to look at. I got a PDF of this unit I hope that it will help Thanks

kenmac 10-07-2010 05:00 PM

I can't tell from the pic. That unit could also have the old carrier/bryant bi metal pilot that sends voltage to the g v. Are there any wires that come from the pilot assy ?

bullmastiff135 10-07-2010 05:29 PM

yes there are two wires on the pilot light

kenmac 10-07-2010 06:16 PM

pilot not hot enough to bend the metal or bad pilot assy

I think you may have this type pilot

bullmastiff135 10-07-2010 07:22 PM

Thanks for the help !!!! I looked at the furnace and the looks like the pilot in the system, any idea on removing to clean it or just replace it, could this be the problem?????


kenmac 10-07-2010 08:13 PM

The 1 in the pic is 3 wire. 1 is used for an ignitor that came on some of those furnaces. You would only use 2 wires. To remove you may have to remove the burner it's bolted to. You may be able to clean the old 1 if you can get the orifice out without damaging it I will repete.. Have that Furnace checked by a PRO B-4 using it for bad HEAT EXCHANGER

bullmastiff135 10-08-2010 08:44 AM

Thanks for the reply It has two wires and the gas line going to it, do you think this is the problem???? and should I just stop and have a pro fix it

kenmac 10-08-2010 01:01 PM

I would say that's the problem.. If it's never been cleaned or replaced.. You can check it with volt meter. You will have 24 v on 1 wire & 0 volts on the other if pilot switch isn't made up. If your comfortable with it, you can jump out the 2 wires & make the furnace come on if that pilot is bad.. Even if you make repaire yourself . Still have a pro check the heat exchanger. As I said b-4.. that wasn't a very good design heat exchanger.. Cracks / holes

bullmastiff135 10-08-2010 05:13 PM

Thanks again I will try to jump Saturday and I hope that is the problem so when I call the pro they cant lie to me about it. And thanks you for all your help

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