Furnace not working : no gas [SOLVED] 

I think I have the exact same issue in this video. Is there someone that can help me with this?

@@charizardsquad2333 did you get a solution?

sounds like you knew it was the gas valve gone bad if it didnt get the 24 VAC

That’s make sense. I just installed a new Godman gas furnace and the gas valve don’t open . Blower starts ,light come on but no gas goes through

Does the limit switch have polarity? I replaced the main limit switch without taking a photo or making a note so now I don’t know which wire goes to which terminal on the switch. Can you help, please? Thank you.

I was having the same issue. I flicked on and off the gas switch a few times and voila. It did the trick. Must have been stuck. Thanks for the help!

Who says the gas supply was limited?

How do I check this

I just had the same problem. Clean the burners if necessary. Make sure the igniter is properly positioned. If that doesn't work, replacing the gas valve should solve it. Be blessed

how do you check the solenoid for 0.2 amps?

What is a good ohms reading on a solenoid?

check capacitor

@bret pull glad it helped

Your solution of replacing the air filter just solved my problem too. Thanks.

I agree.

Could you elaborate?

make sure your door switch is either taped or the cover is on... if the door switch is not taped or the door was taken out the furnance would not lit up or work... even in cooling mode

If you get 24v to gas valve and it's not opening for gas and you know that you have gas going into it then it faulty valve put a new one

Doesn't make a difference.

I have the same exact furnace with same problem, did you find out what the issue was?

Roger that? WTF

Yeah. This video squashed my dreams.

Call a licensed contractor or you could cause an explosion from the phase angle shifter.

Man, she really got me excited and ready for a good deep dive. Talking about what she’s going to do and all! But then i walked in the room and found her sleep.

Check if you get 24v to the gas valve. If yes, then your gas valve is bad.

Im wondering why no one sees that the valve is off

And that is why I live in Florida... born here and will stay here forever... lol

You mean Florida that is as hot and humid as the Equator?

Gene Wood where is this earth quake reset. I think exact same thing happened to us.

Long Huynh Check how to reset ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-bumZMCXKs2Y.html

Then how was your water heater still functioning?

no, there was no gas.

i know this is an old post but how did you get this fixed did you have to replace the gas valve?

@@MattB90 I am having the same problem. I had a tech come out to take a look at it. after the igniter flame comes on and I hear the click he simply tapped the gas valve to get it working. Apparently the valves have two magnets/opening mechanisms inside that get stuck(especially at low temp) and tapping the valve after hearing the click will trigger the gas valve to open. This actually works if you want to keep opening the cover, waiting for the sequence and then lightly tapping the valve with your hand. However, it becomes a bit of a labor pain because now it appears the valve is closing prematurely during operation which requires me to do this more frequently. I came across this post while researching options and it appears that it's time to replace the gas valve (do it right the first time ? where's the fun it that ). The gas valves are pretty cheap, but I'm having the tech come out and simply replace the valve. It seems like something you could do yourself, but I think i'll have a tech come do it for safety reasons. Speaking of safety, I would caution tapping the valve (i.e., you don't need a hammer... just a light tap with your knuckle ). The Tech explained that newer furnaces have improved safety mechanisms, but there have been cases where the tapping or perhaps someone used a hammer, caused an explosion. I won't contemplate the number of ways an explosion could happen so just consider this a safety first disclaimer.

Mine did the same thing except when a tech was there. I finally open up the furnace and cleaned the thermopile. There's videos explaining the process. No more going in the garage to turn on the heat

Archie Arch because he changed the title after he fixed the problem. Read the video description

Not the problem. Check to see if 27 volts at gas valve when igniter is lit. If there is it's a bad gas valve. If not bad controller board.

@@bobn8865 I have 28 volts for about 5 seconds then auto shuts off because I assume it doesnt detect a flame. I hear clicking of the relays as well, i was inclined on a faulty gas valve as I see the igniter lit up. The issue is that I never see a flame at all and the light on the board ne er reads "flame" as I assume it is not being reported by the flame sensor.

@@scientist100 Any luck yet?

@@Andy-un2th It was the board, the board switch was probably weak so it was not powering the gas valve. The best way to test it, is to keep it connected and backprobe the power wires and see if you get the voltage. In my case I disconnected it and it made it look like the board was good because I was seeing the 28vac making me think that the board was good but when I plugged it back, it would read 0 volts during the same time frame (about 5 seconds in my case).

@@scientist100 damn that seems strange. I tested the wires coming from the board and it read 27v, but that was disconnected from the board. Ill have look up backprobing. Thanks for the heads up

lol!!!!!! earthquake valve

You saved my family a cold ass night. -2 outside right now and everything was working on the furnance except the gas. The light on the board stayed steady and checked the fuse all good. Fresh batteries in the thermostat. I banged on the gas line and it started up next cycle.

I was in a 12 round title fight with my furnace for hours last night and was on the verge of giving up and calling a tech $$$ UNTIL, after searching deep in the annals of RU-vid, I came across one sentence that changed everything.. “I banged on the little black pipe that distributes that gas in to the inlets and PRESTO! “ I grabbed my trusty hammer thinking no way. Banged a few good knocks on the black pipe at the burners and sure as hell…BAM! Fired right up. You sir are a gentleman and a scholar. Thank you.

Glad it worked. Ultimately I did have to get it repaired. It happened too many times. I forget exactly what was wrong. I think a bad circuit board or something.

I had to replace the igniter, but after I did there was no gas flow any more. I remember I had gas flow earlier it’s just my igniter wasn’t turned on. So it seemed like something small with the gas. So this “banging the black pipe” definitely helped me to get it started again. Works now. Thanks for the advice!

Hi, I have the exact issue that you are showing in this video. Did you ever find out what the problem was? I’m desperate, please help. Ha ha.

WRONG

Mlm