Frigidaire Gas Dryer works but No Heat, Why?

I have a Frigidaire Gas Dryer Model FDG336NBS1

My dryer stopped heating and does not dry my clothes. The dryer turns but the cycles run continuously without completely drying. The clothes are not hot.
It spins just fine but clothes don’t dry and are not hot. Any suggestions on how to fix and what part(s) I should order?

Hi mvetri

There are four parts you have to check. In order to do it you have to have a simple continuity meter.

The parts are:

  1. The igniter (#74 on the burner break down diagram)
  2. The flame sensor (#79 on the burner break down diagram)
  3. The safety thermostat (#33 on the cabinet break down diagram)
  4. The heat control thermostat (#15 on the motor break down diagram)

All of these parts must be normally closed. If any of them is open, it has to be replaced.

[CENTER]The igniter[/CENTER]

[CENTER][/CENTER]

[CENTER]The flame sensor[/CENTER]

[CENTER] [/CENTER]

[CENTER]The safety thermostat[/CENTER]

[CENTER] [/CENTER]

[CENTER]The heat control thermostat[/CENTER]

[CENTER] [/CENTER]

[LEFT]- The part number for the igniter [COLOR=#0066cc]AP3674313[/COLOR] [/LEFT]

[LEFT]- The part number for the flame sensor [COLOR=#0066cc]AP2142636[/COLOR] [/LEFT]

[LEFT]- The part number for the safety thermostat [COLOR=#800080]AP2152884[/COLOR] [/LEFT]

[LEFT]- The part number for the heat control thermostat [COLOR=#0066cc]AP2106565[/COLOR] [/LEFT]

[LEFT]- Here are the break down diagrams for the Frigidaire dryer Model FDG336NBS1[/LEFT]

[LEFT]Good luck.
Gene.[/LEFT]

Thanks for the steps and part number I will buy the meter and get started right away! Can the metere be purchased from your site?

Thanks again.

Sure, you can

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I have a similar issue. I replaced the ignitor first, and got intermittent heat for a while. I just replaced the control t-stat, and got heat for one or two loads, and now nothing. I can see the glow from the ignitor, but the gas flow does not seem to start, and the ignitor appears to turn off after 10 secs or so. With nearly $100 into this piece of junk, I’m ready to go back to electric. Hopefully you have some ideas that don’t involve more parts…

ps:
#4 t-stat did fail the test when I removed it, but after carrying it in my pocket for a day, it tested ok again…

Thanks

[QUOTE=Gene;5165]Hi mvetri

There are four parts you have to check. In order to do it you have to have a simple continuity meter.

The parts are:

  1. The igniter (#74 on the burner break down diagram)
  2. The flame sensor (#79 on the burner break down diagram)
  3. The safety thermostat (#33 on the cabinet break down diagram)
  4. The heat control thermostat (#15 on the motor break down diagram)

All of these parts must be normally closed. If any of them is open, it has to be replaced.

[CENTER]The igniter[/CENTER]

[CENTER][/CENTER]

[CENTER]The flame sensor[/CENTER]

[CENTER] [/CENTER]

[CENTER]The safety thermostat[/CENTER]

[CENTER] [/CENTER]

[CENTER]The heat control thermostat[/CENTER]

[CENTER] [/CENTER]

[LEFT]- The part number for the igniter [COLOR=#0066cc]AP3674313[/COLOR] [/LEFT]

[LEFT]- The part number for the flame sensor [COLOR=#0066cc]AP2142636[/COLOR] [/LEFT]

[LEFT]- The part number for the safety thermostat [COLOR=#800080]AP2152884[/COLOR] [/LEFT]

[LEFT]- The part number for the heat control thermostat [COLOR=#0066cc]AP2106565[/COLOR] [/LEFT]

[LEFT]- Here are the break down diagrams for the Frigidaire dryer Model FDG336NBS1[/LEFT]

[LEFT]Good luck.
Gene.[/LEFT][/QUOTE]

[quote=swrightsls;208142]I have a similar issue. I replaced the ignitor first, and got intermittent heat for a while. I just replaced the control t-stat, and got heat for one or two loads, and now nothing. I can see the glow from the ignitor, but the gas flow does not seem to start, and the ignitor appears to turn off after 10 secs or so. With nearly $100 into this piece of junk, I’m ready to go back to electric. Hopefully you have some ideas that don’t involve more parts…

ps:
#4 t-stat did fail the test when I removed it, but after carrying it in my pocket for a day, it tested ok again…

Thanks[/quote]

Sounds like the problem is a bad gas valve coils (#71 & #72 on the diagram).

Gene.

[QUOTE=Gene;208458]Sounds like the problem is a bad gas valve coils (#71 & #72 on the diagram).

Gene.[/QUOTE]

Thanks, I’ve ordered one now. I’m curious why this part wasn’t on the original list? I’d rather replace this cheaper part than the two $40 parts I’ve already bought that were probably ok. (I suspect I tested the t-stat on too high a meter range, but perhaps it was sticky…) Oh well.

The very first post in this thread was about dryer which did not heat at all. It’s very seldom for this coils to cause such problem.

Gene.

P.S. It’s always better to create your own thread with full description on problem with YOUR appliance.

[QUOTE=Gene;208658]The very first post in this thread was about dryer which did not heat at all. It’s very seldom for this coils to cause such problem.

Gene.

P.S. It’s always better to create your own thread with full description on problem with YOUR appliance.[/QUOTE]
Gene, same problem for me. Dryer would heat intermitently for a while and now no heat. i checked continuity on ignitor, sensor, safety thermostat. All good. On the heat control thermostat i got continuity betwen the two wide pins (left and right). But there are also two close pins (up and down) where I did not get continuity. Should I have? Starting to think I have a coil problem too.

Very possible the problem is a bad coils.

Gene.

Is the The igniter normally closed,or only half closed,I use the meter show only half. do I have to be replaced.

Can you explain what did you mean?

What is the complete model number of the dryer?

Gene.

Frigidaire 417.59012890 Clothes Dryer,

[LEFT][COLOR=#000000]My dryer is not giving off as much heat as it’s suppose to be. It started to take longer to dry the clothes.
The flame sensor ,the safety thermostat ,and the heat control thermostat are normally closed, I can see the glow from the ignit, and the ignitor appears to turn off after 10 secs.
I used a meter to check the igniter and the needle landed on the 3k OHMS , do I have to replace it?[/COLOR][/LEFT]

Sorry for the delay.

The most common cause for such problem is restricted air flow in the exhaust line. The first thing I would do is clean the exhaust line from the dryer all the way through the outlet.

Gene.

I replaced all those parts and nothing