My Maytag gas dryer just stopped heating. I opened up the front & turned it on & there was no flame. I’m not sure how to tell wich part it is that is in need of repair.
There are five major electrical parts involved in the heating process:
- Hi limit thermostat
- Cycling thermostat
- Igniter
- Flame sensor
- Gas valve coils
How to find out which part causing the problem?
Pretty simple: all of these parts have to be tested for continuity in the above sequence.
The following article on our forum will explain in detail how to run a continuity test using either an analog meter or a digital meter - How To Check Continuity With Ohmmeter
If any of them is open – it has to be replaced.
Gas valve coils also could be tested by resistance. There are two coils – one with three terminals and one with two terminals.
- Coil with two terminals should have 1220 ± 50 Ohms
- Coil with three terminals if held with terminals in upper position:
a) across the left and the middle terminals – 1365 ± 25 Ohms
b) across the left and the right terminals – 560 ± 25 Ohms
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The part number for the hi limit thermostat is AP275754
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The part number for the igniter is AP3464835
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The part number for the flame sensor is AP2910747
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The part number for the gas valve coils kit is AP3094251
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The part number for the cycling thermostat is AP276896
The first four parts are located on or around the gas valve, the cycling thermostat is located on the blower cover.
Good luck.
Gene.
Thanks. I will test that. I apreciate you’re assistance.
Keep me updated, please.
Gene.
Gene,
Thanks a million! With the diagrams supplied and an ohm meter I bought many years ago, I diagnosed a broken igniter in my Maytag LDG482. Learned a whole lot about gas dryers in the process, too! I’ve never opened up a dryer before, but with your easy to follow and clearly written guidance. Done! Fantastic resource!
Hi jfairman,
I’m glad you were able to fix it.
Gene.
ohmmeter came in 2 days & it looks like it’s the igniter. I just ordered a new one & we’ll see what happens. thanks for your help!
Installed the new igniter & it’s workig perfectly! Thank you very much for your assistance. I will definitely recomend this site to anyone I know who is having trouble with an appliance. Saved me a lot of money, & I learnt a lot in the proccess. Keep up the good work!
I’m glad you were able to fix it.
Gene.
Ok, no heat at all coming from my Maytag Gas Dryer. I did alot of research on the net and found this thread. This is what I did so far.
- Checked cont on fuse
- Checked cont on thermostat
- Checked cont on the coils (both)
- Checked flame sensor and it gave me a value of 1.?? Would that be the problem
- Checked Ignitor and got an Ohm reading of 87. From what I read that is ok. I don’t see any cracks.
At this point I have hit the wall. Any suggestions before I just go out and buy a new one? I hate to do it…
- Erich
Hi Erich,
Did the igniter glow when you used the dryer?
I did not understand what reading did you get on the flame sensor. Normally it suppose to be very close to 0 Ohms (closed circuit).
What is the complete model number of the dryer?
Gene.
No Glow at all, went out and bought a new ignitor and no glo on that one either…unless there is another easy item to check I am about done… $100.00 in parts and no closer to a fix..unfortunately. I guess that is my fault, I bit off more then I can chew on this one. At this point I don’t see why I should even try the flame sensor again because the ignitor does not glow… 
- Erich
The flame sensor is connected in series with the igniter and if the flame sensor is bad then there is no power is coming to the igniter.
Do not give up yet. If you’ll follow my instructions we will fix it together.
Gene.
Ok so should I check the flame sensor then? If so can you walk me through using my digital ohmeter to test it? I am a novice at using that but I can follow directions! Thanks..I look forward to your answer.
- Erich
Turn the meter switch to Ohm Rx1 scale, remove one of two wires from the flame switch and touch the flame switch terminals with the meter probes. The meter should beep and show 0 Ohms what means a closed circuit (good flame switch). Any other readings means the switch is bad.
Gene.
My maytag is having a similar issue… I’m not sure how I go about testing the first few items listed in this thread.
I just tested the coils
2 prong - 1220 ±50 Mine tested at 1266 +46
3 prong - 1365 ±25 tested Left and Middle @ 1390 +25
3 prong - 560 ±25 tested left and right @ 568 +8
So, one is near the limit, one is at it… does that mean they are okay?
My dryer fires up sometimes.. runs for 30-60 seconds, then loses flame, next cycle, no flame up. I get good glow each cycle.
I did just move the dryer a little bit out and back a couple times, but not even out of the room. Also, I had a plumber tap off that gas supply line for a small fireplace that I’m installing in the next room. That line is run, but it’s closed off because the fireplace hasn’t been installed yet. They said both units being 22,000 btu’s could share a 1/2" line being under 40’. It’s probably 15’ from the tap in the basement to the dryer, another 15 to the fireplace.
After messing with things last night, I ran it again and it fired up and flamed for probably 4-5 minutes before going out.
[QUOTE=barren;559831]After messing with things last night, I ran it again and it fired up and flamed for probably 4-5 minutes before going out.[/QUOTE]
Sounds like the problem is a bad gas valve coils. Even if they pass continuity test, they can fail under the heat stress. It’s not expensive and worth to try.
Gene.
[quote=Gene;560034]Sounds like the problem is a bad gas valve coils. Even if they pass continuity test, they can fail under the heat stress. It’s not expensive and worth to try.
Gene.[/quote]
Thanks Gene, I ordered the parts from an online vendor, standard 2-5 day ship, I had them in a day! Installed last night in 10 minutes… the dryer is up and running again. I didn’t have anything wet to run through it, but I ran it with some things in it for a few cycles of the flame and it came up each time. Tested having my fireplace running at the same time as well.. no issues!
You are welcome. I’m glad it’s up and running.
Gene.