Troubleshooting Maytag gas oven igniter

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Old 01-22-18, 09:51 AM
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Troubleshooting Maytag gas oven igniter

I have a Maytag gas (propane) oven, model MGR7662WS, for which the lower igniter stopped working. Gas flow is not an issue, as the stove top and broilers function properly. Can hear clicking, but igniter does not glow.

What I have done so far:
- Replaced the igniter- even though I didn't test the old one first, the existing one was old and would need to be replaced at some point anyway.
- After putting covers back in place, igniter worked twice, then stopped working again.
- Pulled out the bottom drawer (pic attached), seemed like wire to igniter was loose so snugged it up. Ignition glowed and fired up several times. Thought it was fixed, so put everything back together.
- After putting everything in place, did not work at all
- Opened all up again, checked everything but igniter would still not glow
- One troubleshooting video I saw said to check the circuit at the control board- but the igniter in the video had two wires going to it. My model only has one brown wire. (as seen in attached image)
- I saw what I'm pretty sure is the same brown wire attached to the spark board, but don't know what the other contact point is, and am not sure where I should be doing a voltage check (see image)

I could not find a wiring schematic online for the board, can anyone suggest what I might try next?
 
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Old 01-23-18, 12:47 AM
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You don't have a hot surface igniter...... you have a spark ignition system. There should be nothing glowing.... just a spark and then the burner lights. Since you are getting a spark.....it sounds to me like the port in the gas burner that is closest to the spark igniter is plugged.

All appliances come with a tech sheet. Since you didn't see it underneath by the drawer.... it must be inside the back of the stove or near the control panel.

There is no voltage to check. That spark is created by the spark module. The spark voltage would be way too high to measure with a meter.

The tech sheet is W10198615 and I haven't located it yet.
 
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Old 01-23-18, 06:21 AM
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Thanks for responding PJmax. It will be great if fixing my issue would be as simple as clearing a clogged area somewhere near the burner. I just wanted to clarify a couple of things- first, does the clicking sound alone indicate that the spark is working? Shortly after trying to start it I usually smell a little gas, so if there is a clog I'm assuming it isn't enough to close off the port entirely.
Also, what area should I be inspecting for a clog- would it be the area in the second picture (under the drawer where the burner pipe goes in next to the regulator), or near the igniter (newly attached photo)?
 
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Old 01-23-18, 10:47 PM
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The entire gas burner allows gas out but the important ones for ignition are the ones in the yellow box. Those needs to have gas coming out as soon as it's turned on so they can ignite the rest of the burner.

Also..... turn the gas off and turn the stove to bake.... make sure the spark is visible near the burner. The spark needs to be by those little holes so they light first.

Name:  Propane oven igniter page 2.jpg
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Old 01-24-18, 08:42 AM
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I appreciate your highlighting the area to inspect, thanks much for that. I will have access to the stove again over the weekend so I will try your recommendation then and give an update.
 
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Old 01-27-18, 05:05 AM
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I tried the test of looking for the spark with the lights out. Only the broiler sparker ignites. I inspected closely the wire connection to the lower sparker, which looks good. I'm assuming both broiler and lower sparker are on the same circuit since the bake setting sparks the upper element.

Not sure what to check next, other than trying to find the wire going to the broiler sparker to see if it is in fact the same circuit. I
 
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Old 01-27-18, 01:03 PM
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Looking at the spark module..... it would appear that the four burners are together and that the oven and broiler are independent. I haven't been able to find any wiring info. The spark module should be back behind the control panel. Sometimes accessible from the rear of the oven.
 
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Old 01-27-18, 04:16 PM
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The spark module is one of the 3 pics in my original post. Is it likely given that I've tried a new igniter and the connection seems good that the module is bad and needs to be replaced?
 
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Old 01-27-18, 06:08 PM
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I see orange, yellow, blue and red to the left two supplies. I believe those are the stovetop igniters.
I see a brown wire to the third supply..... which I believe is the oven igniter.
I see a white wire to the fourth supply.... which I believe is the broiler igniter.

You could switch the brown and white wires to see if the oven igniter works.
Bake and broil igniter functions should be reversed.
 
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Old 01-29-18, 04:27 AM
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When connected to the broiler terminal (white wire), the bake igniter works.- would seem conclusive that it's the spark board. I ordered a replacement. Thanks Pjmax for your suggestions!
 
 

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