I have a Maytag LDG7400 Dryer, will these coils work on my dryer? What does the main and secondary coils do? Is there a way to check of either one or both of the coils have gone bad?
Answer Hello Chris! Yes, the coil kit 279834 will work on your LDG7400 model dryer. The main coil is used to open the gas valve to allow gas through for the unit to ignite. The secondary coil is used once the igniter is lite to maintain the heat. You can test the coils using a multi-meter. The two prong coil will read 1,000-1,300 ohms, and the three prong coil will read 1,300-1,400 ohms across prongs 1&2, and 500-600 ohms across prongs 1&3. Hope this helps!
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I have a Roper gas dryer model RGX3514PQO , dryer will ignite and then clicks off and runs cold the rest of the cycle. Do you think it may be the coils?
Answer Hello Bob, If it lights and then shuts off, it sounds like the coils. There is a test listed above you can do to determine if it is. Hope this helps.
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I have a small gas leak(propane). I have tested all incoming lines. Do the coils also shut the gas valve when the dryer is not in use?
Answer Jim, Yes the coils are "relaxed" and shuts the gas flow off whenever there is no power applied to the valve. Replacing the coils will not solve the issue, if the fittings and regulator cap are all tight and not leaking, then it would be an internal failure in the gas valve body, you'll need to replace the gas valve 8318277 to be safe.
My ignitor was not glowing, replaced it with a new one, still not working.
If the igniter is not glowing you will want to check it for 120 vac. If there is not then test the thermal fuses and thermostats for continuity . If there is no continuity then the part is faulty and would need to be replaced.
Getting no heat. I ran the thermistor diagnostic and got no error message after 2 minutes. I checked the gas valve coils, I measured resistance across the terminals, 1 to 2 and 1 to 3 fell within the acceptable ranges from the chart. 4 to 5 reads at 1285, is this acceptable? When I start the dryer, I get no flame or glow or clicking sound.
Answer Sean, The main coil resistance is in range, 1000 to 1300 ohms across pins 4 and 5. You'll need to check the flame sensor 338906 ] for a "closed" circuit when cold. Then check the igniter 279311 for a "closed" circuit or 50 to500 ohms resistant at room temperature. If all checks are OK, you'll need to check for 120 VAC across the black and blue wires at the gas valve harness connector with the motor running. If no voltage is present, you'll need to check the thermal fuse and hi limit thermostat for "closed" circuits, then the heater relay on the machine control board for 120 VAC out of the board to the gas valve and thermostats.
The dryer is turning everything grey. When used it seams to dry fine.
Answer Gary, Being a gas dryer, you do want to make sure you have the proper fuel air mix at the burner. The flame should be a blue color with little to no white or yellow tipping at the end of the flame. Otherwise the greying would be due to a chemical reaction in the wash or drying process, and is usually due to fabric softener or softener sheets. You can also check the tumbler and baffles for stuck on substances like gum, glue, stickers etc. You can also clean the tumbler and bulkheads with something like "soft scrub" or "Bon Ami" just be careful not to rub through the painted surfaces.
I replaced both coils in our gas dryer (your video was very helpful), but still have no heat. I can hear a switch activate when the dryer starts up, but the burner doesn't ignite. What do you think we should try next?
Answer Hello Rachel,
The click you hear is the gas valve being energized. If it is not igniting, the gas valve WE14M114 is not opening and will need to be replaced to correct the issue. You will need to call in for a return authorization on the coils.
Is it possible to disassemble the gas valve assembly to free up sticking valves? Would a shot of wd-40 do any good? Any harm?
Answer Hello Bill,
Gas valve dis-assembly is strongly recommended against because it is next to impossible to re-assemble the valve so there is no gas leak. Even technicians replace the valve instead of trying to repair them.