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Testing the ignitor

How do you test the ceramic ignitor? I see a lot of people say you can use an ohm meter but I do not believe it is possible to test it that way. Is there a difinitive way to be sure if the ignitor is good or not? I am getting 120v. to the ignitor but no glow/heat.

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Well you can indeed test a ceramic ignitor with an ohm meter. I ended up buying a new one and checked it with my meter.

Posted on Feb 19, 2009

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Ignitor wont glow


It might be cracked or broken. I would carefully remove it (don't drop it), and put an ohmmeter across the contacts. You should get a reading of 500 ohms or less, but not 0 (meter leads shorted to each other).

If the reading is higher, either you don't have the meter leads actually touching the terminals, or the part faulty.

But if it's not faulty, then the ignitor's power source is not feeding it electricity. In this case, the heat sensing circuit may be bad, usually caused by a faulty thermostatic device.

There also may be a loose wire connection inside the unit.

You can test all of the above with a voltmeter. Put the leads, one in each terminal on the ignitor socket, and have someone else start the dryer.

It probably won't work with the ignitor removed, but there should be a slight jump on the volt meter if the circuit is working properly.

I usually don't bother with all that. There's far fewer different ignitor elements than there are appliances that use them, so you can almost always find the one you need in stock, in town.

Take the old one along. Some parts distributors will test the one you bring in, because if they didn't, they wouldn't know what's going on.

If the ignitor is good, they usually know which part failed, because parts guys know which parts fail most on any appliance.

Jul 22, 2012 | LG DLG5988 Gas Dryer

1 Answer

I have a Whirlpool Heavy Duty Super Capacity Gas Dryer model no. LGR7646EQ1. Today it suddenly stopped heating. Normally I can hear the igniter start. Now I can not and the gas is not coming on the drum...


Their is a way to test it with an ohm meter Unplug unit. unplug igniter connector has two white wires going to it an check for continiuty between the two terminals on the igniter side of connector,.if no continuity replace..Hint when installing new ignitor do not touch the heating end of it oils from your body will create a hot spot and shorten the life of the ignitor....Hope this helps in your repair

Aug 15, 2010 | Whirlpool Dryers

1 Answer

I have a kenmore 70 series gas dryer that stopped heating


Good day,
There are a lot of items that can cause a no heat condition on a gas dryer. Best to follow a step by step testing procedure to isolate the issue.

Here are items to check. You will need an ohm meter to perform some of these tests.
1. Make sure the gas is turned on to the appliance.
2. Remove the back cover of the dryer. In the center bottom is a small skinny white ceramic device, held on with one screw.
Remove one of the wires, and check it with an ohm meter. It should show zero ohms of resistance. If not, it is defective, and needs replaced. This device on your brand causes 80 to 90% of all no heat problems.
3. As well, there are 3 or 4 other thermostats in the area, either round or rectangular, with 2 wires going to them. Check all of them if needed. They should all check zero ohms.
4. To check the igniter, you will have to remove the front panel. A tutorial follows, on how to do that.
Locate the gas valve, on the left side. Follow it forward, you will see the 2 wires on a plug, and at the tip of the burner tube, the igniter itself. Unplug, and check the igniter leads. It should read about 20 to 30 ohms. if not, it has burned out and needs replaced.
5. On the gas valve itself, are 2 black coils, held on with a 2 screw bracket. They can fail, but cannot be tested with a meter. If they are bad, the heating system will light the igniter, and shut down without firing the gas. All components must be in place to perform this test.
That covers 99.5% of all issues. There are others, such as the timer, heat selector switch, centrifugal switch in the main motor, but are extremely rare.
The tutorial below is not about heat trouble shooting, but is supplied to show how to gain access to the front of the machine.
http://www.wikihow.com/Replace-a-Dryer-Belt-on-Whirlpool-Models

This is what the thermal fuse looks like. Common failure item, along with the ignitor.

21b98cc.jpg

Apr 28, 2010 | Kenmore Dryers

1 Answer

Dryer runs/tumbles, gas won't light off.


Good day,
Follow a step by step procedure. It's the easiest way. The most common problem items are here. Thermal fuse and ignitor. The gas valve coils are fairly common as well. Kenmore's are built by Whirlpool.


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Here are items to check. You will need an ohm meter to perform some of these tests.
1. Make sure the gas is turned on to the appliance.
2. Remove the back cover of the dryer. In the center bottom is a small skinny white ceramic device, held on with one screw.
Remove one of the wires, and check it with an ohm meter. It should show zero ohms of resistance. If not, it is defective, and needs replaced. This device on your brand causes 80 to 90% of all no heat problems.
3. As well, there are 3 or 4 other thermostats in the area, either round or rectangular, with 2 wires going to them. Check all of them if needed. They should all check zero ohms.
4. To check the igniter, you will have to remove the front panel. A tutorial follows, on how to do that.
Locate the gas valve, on the left side. Follow it forward, you will see the 2 wires on a plug, and at the tip of the burner tube, the igniter itself. Unplug, and check the igniter leads. It should read about 20 to 30 ohms. if not, it has burned out and needs replaced.
5. On the gas valve itself, are 2 black coils, held on with a 2 screw bracket. They can fail, but cannot be tested with a meter. If they are bad, the heating system will light the igniter, and shut down without firing the gas. All components must be in place to perform this test.
That covers 99.5% of all issues. There are others, such as the timer, heat selector switch, centrifugal switch in the main motor, but are extremely rare.
The tutorial below is not about heat trouble shooting, but is supplied to show how to gain access to the front of the machine.
http://www.wikihow.com/Replace-a-Dryer-Belt-on-Whirlpool-Models

Apr 11, 2010 | Kenmore 63942 Dryer

2 Answers

The dryer will not get hot. We replaced the


Good day,
If one of the terminals from the flame sensor fell off and touched any part of the cabinet or other metal parts, it's possible it could have shorted out any component in the heating system, all the way back to the timer.
However, if not then a step by step procedure should get you there.

Here are items to check. You will need an ohm meter to perform some of these tests.
1. Make sure the gas is turned on to the appliance.
2. Remove the back cover of the dryer. In the center bottom is a small skinny white ceramic device, held on with one screw.
Remove one of the wires, and check it with an ohm meter. It should show zero ohms of resistance. If not, it is defective, and needs replaced. This device on your brand causes 80 to 90% of all no heat problems.
3. As well, there are 3 or 4 other thermostats in the area, either round or rectangular, with 2 wires going to them. Check all of them if needed. They should all check zero ohms.
4. To check the igniter, you will have to remove the front panel.
Locate the gas valve, on the left side. Follow it forward, you will see the 2 wires on a plug, and at the tip of the burner tube, the igniter itself. Unplug, and check the igniter leads. It should read about 20 to 30 ohms. if not, it has burned out and needs replaced.
5. On the gas valve itself, are 2 black coils, held on with a 2 screw bracket. They can fail, but cannot be tested with a meter. If they are bad, the heating system will light the igniter, and shut down without firing the gas. All components must be in place to perform this test.
That covers 99.5% of all issues. There are others, such as the timer, heat selector switch, centrifugal switch in the main motor, but are extremely rare.
P.S. If the lead from the sensor fell, and shorted to the machine, as I said, the the gas coils may be totally destroyed and would not allow the ignitor to heat.

Apr 07, 2010 | Whirlpool LGR5644 Gas Dryer

1 Answer

Roper gas dryer does not ignite.


Hi,
The problem is the ignitor...

Check out this tip that I wrote about that problem...

http://www.fixya.com/support/r4398592-gas_dryer_not_working_gas_dryer_not

heatman101

Apr 07, 2010 | Dryers

1 Answer

Drum turns but does not heat the air. I replaced the ignitor, but no help there. Whirlpool gas dryer model 63003W0


If the ignitor glows but does not light the burner you need to replace the gas valve coils.
If there is no glow you must check all the thermostat safeties and thermal cutout fuses for continuity with a ohm meter. No continuity is a bad component. Remove at least one wire from each component before testing.
Unplug the dryer before any test.

Feb 17, 2010 | Whirlpool Dryers

2 Answers

Kenmore electric dryer runs,but no heat


Check the glow ignitor and make sure that it is not broken. It is located behind the rear back cover and on the bottom

Feb 19, 2009 | Kenmore Dryers

1 Answer

WHIRLPOOL DRYER 5-6 YRS OLD


Navy 2nd Class Diver 1969-73

The Ignitor is fine? So, it heats on some settings and not others?

The OHM Meter test for continuity.
Some parts give a reading of a certain amount of OHM's but, most the time all you need to know is if you get any reading on the meter at all. This shows there is no break inside the part. You can check the ignitor this way also the solenoids on the gas valve.

If the ignitor glows red then shuts off and does not ignite the gas, this could be the sensor or the solenoids. The sensor located close to the ignitor, will detect the glow from the ignitor and send power to the solenoids on the gas valve.

Jan 26, 2009 | Dryers

1 Answer

Maytag Gas Dryer LDG7304AAE won't heat


Probably a high limit fuse. Check on the burner shroud for a 2 wire thermos. They should have little resistance. If so replace. If they are open, check for a restricted vent. Remove front panel and clean out area below filter.

Nov 12, 2007 | Dryers

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