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Maytag Gemini Model # MER6770AAB (Electric double oven)

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Posted: Sat Oct 11th, 2008 02:06 pm

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dave5460
Senior Apprentice Appliantologist

Joined:	Tue Sep 9th, 2008
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Flavorite Brew:	100% Columbian dark roast
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Model # MER6770AAB, Serial # 21479859ZH Gemini dual oven range.

I had a problem with this range recently. The upper oven top element wasn't working. Traced it to the hi-limit switch and replaced it. Worked fine. Now the upper oven lower element doesn't work. The element itself is good. I traced the voltage back and it APPEARS that the relay controlling this element has lost its "ground" or return connection. There are four relays on the circuit board in this range. Two of them (connected to the two broil elements) are connected directly to the black wire that goes back to the power cord. The two relays for the bake elements appear to make this connection in some other way.

Now: the relay connected to my nonfunctioning element does work. It clicks and 240 VAC appears at the unused contact on the other side. Is there any reason I shouldn't connect another wire to hook this unused relay contact up to the return side of the power line? It looks simple and straightforward - therefore I'm worried.

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Posted: Sat Oct 11th, 2008 03:15 pm

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RegUS_PatOff
Fellow, Academy of Sublime Masters of Appliantology

Joined:	Sat Sep 24th, 2005
Location:	Milwaukee, Wisconsin USA
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As shown on PDF pages 42 & 43 (MER6770AA*)

These Relays directly connect the folowing Elements to Black.

UP BAKE Orange Wire

UP BROIL Tan Wire

LOW BROIL Blue Wire

The LOW BAKE (Yellow Wire) connects to the Normally Open contact of the LOW BROIL Relay
so as not to be able to turn them both on at the same time.

Maytag Gemini Range Service Manual

Last edited on Sat Oct 11th, 2008 03:27 pm by RegUS_PatOff

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Posted: Sun Oct 12th, 2008 01:27 am

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3^rd Post

dave5460
Senior Apprentice Appliantologist

Joined:	Tue Sep 9th, 2008
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Flavorite Brew:	100% Columbian dark roast
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I'll have to play with it a bit more to make SURE it will do what I want, but if not, do you know of a source for the individual relays? Replacing the whole circuit board runs about $300 so I know I won't be doing that.

Thanks

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Posted: Sun Oct 12th, 2008 01:37 am

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4^th Post

RegUS_PatOff
Fellow, Academy of Sublime Masters of Appliantology

Joined:	Sat Sep 24th, 2005
Location:	Milwaukee, Wisconsin USA
Posts:	16509
Flavorite Brew:	Indian Head. Black & White
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if you posted the part numbers off the Relays ... it's been done before...

but it's the LOW BROIL that dosen't connect directly to the Black Wire....

If you're having problems with one of the BAKE Elements, that may be another problem...

Last edited on Sun Oct 12th, 2008 01:39 am by RegUS_PatOff

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