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Furnace trouble: No flame sensor.?
I have a Janitrol Goodman GDPS100-3 (1990). The pilot light stays lit, the flames come on, then the flames go out - then I hear the ignitor. This happens over and over. Flames out, ignition, flames, flames out, ignition, flame. So I change the thermocouple, I notice there is no flame sensor. What can I do to fix this?
Is it time to get a new furnace?
Thanks!
8 Answers
- HighbeamLv 41 decade agoFavorite Answer
Yes, Trane sells good ones. Why settle for a cheap Goodmen when you can get a long lasting Trane. And get a qualified installer to install you furnace, no matter what kind you settle on. Nobody wants to hear stories about you blowng off your ears.
Source(s): Yes. I sell Trane - 1 decade ago
i noticed of the people who sell Heating equipment on this page no one said a thing about "The Guiding Light" that little LED on the circuit board that gives you ERROR codes.
look at what the light is doing then look at the codes on the furnace door.
and buy an "EVOLUTION' from BRYANT
goodman and trane are the same the only difference is trane heat exchangers come from the factory already cracked.....
i know i worked for a company that sold the most in the northeast and got a jacket and a smiley sticker :)
keep the furnace you have just buy an Carbon Monoxide Detector
you put money into you car right? same thing for a furnace.
- 1 decade ago
There is a sensor that tells the fan when to come on.If this is not working,flame will not stay lit.Also some furnaces have a sail switch that tell,s the main control board the fan is running. If control does not receive this signal in say 5 sec,s the furnace will shut down.Hope this help,s.
Source(s): Carl - 1 decade ago
You need a service callIassume you have spark ignition that proves pilot and not main burner flame,you could have low gas pressure especially if you have propane or if you have natural gas alot of development since the last time your furnace was set up.It could also be a bad spark box.The furnace you have isn't the best brand but it is paid for.Get a service call/inspection first.If you want peace of mind and a warranty buy a new furnace
Source(s): 20 yr hvac tech - How do you think about the answers? You can sign in to vote the answer.
- Anonymous1 decade ago
Some of those new furnaces aren't as good as what has been around. Call and find out who carries Rheem. They are still in the top 3 for furnaces.
- 1 decade ago
on your furnace near the ignitor their is a maniforld and ignitors.That is where the flame is, those could plug ug up and you would have to take them off and cleand them out if they are really rusty you made need to replace them. There should be three of them.
Source(s): A friend of mine who works on furnaces showed this to me. - GladysLv 45 years ago
The flame sensor would detect a flame. Since you are not getting a flame, it sounds like the valve to turn on the gas isn't working.
- Anonymous1 decade ago
YOu have to keep the button pressed down a long time to get it to ignite if you are trying to light it and yes, it may be the termocouple but hold the button or knob in a long time and ease up on it very slowly
