Magtag dual wall oven CWE5800ACB Series 19 Bake element not heating

[sabre193]

I have a Maytag dual wall oven, model CWE5800ACB, Series 19 (i.e., serial # begins with 19).  Unit dates from prior to 2003 (when I bought the house).  Recently, the bake element in the upper oven stopped heating.  It failed in the middle of cooking and hasn't worked since.  When I activate the bake setting, I hear the relay click immediately (twice actually, kind of like a tick-tock) and then I hear it click once about a minute or two later, and then again once every couple of minutes or so.  Bake element does not heat at all.  Temperature sensor seems to be working; the electronic display shows the oven temp as 75 degrees (i.e., approx room temp, 75 seems to be the minimum temp that the display indicates when the unit is turned on).

I've pulled the bake element and checked the resistance; measured less than 50 ohms.  I pulled out the electronic control unit, hoping to check the relays.  The parts lists at the online parts shops indicated that the relays for this model are replaceable.  Unfortunately, when I pulled the unit and inspected it, it looks like the relays are soldered onto the board; my guess is that the replaceable relays are for a newer rev of the unit.  I did a search online for the part # on my control unit (7601P440-60), and it seems to be an older rev that is now obsolete and has no replacement part.  Fortunately, there seem to be a couple places online that will refurbish this unit (price ranging from $100-$160):  The Repair Shack, CoreCentric Solutions, and FixYourBoard.com

Before sending out the unit for refurbishing, I was hoping to do a final test, so I know definitively what's at fault.  From looking at the wiring chart and looking at the control unit, it appears that both the bake & broil circuits each have relays that are identical to each other. Thus it seems like I could swap the purple lead from E7 (BROIL) with the yellow lead from E5 (BAKE) and see if the bake element heats up when I activate the broil setting.  That should prove that the relay on the unit is the culprit.  Alternatively, I also considered jumping E5 (BAKE) and E6 (L1-B) to see if the element would start heating up.  Not sure which of these tests is better, or if either/both are a problem.

Any recommendations on which of these two tests to try before sending the control unit to be refurbished?  Anything else I need to check?  And any recommendations/advice regarding the 3 places listed above that advertise they can refurbish the unit (or referral to yet another place that can refurbish the unit)?

BTW, I don't see any obvious sign of failure on the unit, no burns or scorches, everything looks normal.  I realize that it might still be faulty, even with no obvious sign of failure.  I just prefer diagnosing rather than guessing at the cause & throwing new parts at a problem.

I've searched the forums for this and couldn't find this being discussed before; I apologize if this has been covered elsewhere.  And thanks in advance for any help you can offer.

[16345Ed]

The proper test is to check for 240 VAC at the two broil element connections. 

This is a live test, can be dangerous. 

If you have 240 then replace element, if not you need to trace back power supply. 

 

[evaappliance]

You could do either test you mentioned , but normally if you don't have 240 at the element it will be the board.