I have a maytag MER6772 electric rage and the bottom oven will not heat past 100 degrees. the top heat to 350 then's cuts off. I replace the Control board wahts next?

Read this........http://www.fixya.com/support/r4511800-oven_problems_electric_oven_heating

Hello & Welcome to FixYa

This indicates a open/shorted oven temperature sensor and to solve this problem the sensor needs replacement. If you wan to be sure before replacing the sensor then you can test it with a voltmeter for around 1100ohms....if it reads more then this then it needs replacement however, if the reading is around or less then 1100ohms then it is the control board that needs replacement. However, I believe it is the sensor as the problem is only with bottom oven. Please get back to me if you have any other questions.

Kevin

How proficient are you with electrical wiring and electronics?
Just as a test to see if both elements are working, very carefully use a very damp (almost but not quite dripping) to touch the elements when the oven is just turned on. My problem was with the lower heating element, it was not heating. You have to do this before the oven heats because everything will be hot then.
After verifying it was not heating, I unplugged the oven and opened the back panel. I removed the leads from the malfunctioning heating element, attached the alligator leads of my volt meter, plugged the oven back in and turned oven on at 100 deg F; this will establish a potential. I measured voltage and got 26 VAC when I should have had ~240 VAC.
I swapped the orange and tan leads and saw the top element not work and the bottom did. Looking at the wiring diagram, I traced the problem to a relay on the control panel.
At this time I don't know yet if I can find a switch to replace the defective relay or if I need to replace the whole control panel. I sure hope I can replace the relay because the control panel will be ~$300.

Maytag / MAYCOR / Magic Chef / Jennair / Admiral
Oven Fault Codes
Display Condition Remedy
F0 Function key shorted or stuck button Clean and unstick button or replace Touch Pad or Clock
F1 Defective Touch Pad or Membrane Replace Touch Pad or Membrane
F2 Oven over heat defective Relay Board or (if present) or defective Sensor
F3 Oven Sensor Open Replace Sensor
F4 Shorted wire or Sensor locate short and correct it or replace Sensor
F5 Hardware, safety circuits disagree Replace Clock
F6 Missing AC (power) signal Check for proper voltage (plug, breaker, etc.)
F7 Function key shorted or stuck button Clean and unstick button or replace Touch Pad or Clock
F8 A/D Warning Replace Clock
F9 Door Lock Warning Check door lock circuit or Replace Clock

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Check the sensor for correct ohm reading. If it is good, replace the control. It should read 1143 at 100 degrees

usually it is the thermal cut off( TCO) ,a kind of themal fuse which goes out if the temp exceeds certain limit and cuts off the power to the elemnts.it is to protect the cavity from over heating.it needs to replaced or reset depending the model. u will need a tech to fix this.

Oven temp sensor failure, possible control board problem. Unit thinks its a different temp. sensor connects directly to control....suggest you to call maytag cust service....sometimes they will assist with parts

may tag gives 5yer worenty if not still under worant get rid of it

after power outage clock on oven will not set unless the oven itaelf is on unable to set clock

Hello ppeaches,
Are you sure that the oven isn't heating up more than 100 degrees or are you basing the problem on the ovens readback of 100 degrees? If it truly isn't heating more than 100 degrees then anything inside there should be hot but not so hot as that it can't be touched. Have you tried to cook anything in there? My intent to assist in diagnosing the problem is to determine if it is a control based or read back based issue? Try cooking something that requires at least a 350 degree temp and get back to me on what happens... We;ll get you running after that,,,,,