Hi. I have a Maytag CWE4200ACB wall mount oven that seems to have a circuit board/timer problem. When the oven is turned on and temp set you can hear (at the control panel) one click and the "on" light comes on, just a few seconds later, probably about 3 to 4 seconds you can hear another click, I assume its clicking off as neither upper or lower element heats up. All the readouts on the display look normal and if the oven is set to say 350 degrees it never registers any higher than 75 degrees, obviously never heating up. There are no trouble codes showing on the display if this unit even has this feature. Thanks, Hal.

Hi.

The clicking noise comes from the control board relays. The board has three relays. One for for bake. One for broil. One for light/fan auxiliary functions.

Try switching on only bake or broil. If one of the two elements (either bake or broil) gets hot, then the problem is either element or timer board. Make sure that the element has continuity at the Ohm meter.

If both bake and broil do not work test first the oven temperature sensor located inside the oven cavity. Make sure that impedance of the sensor at room is about 1.1KOhms . If sensor is open or shorted, replace the sensor. If sensor reading is OK test wiring and elements for continuity and eventually replace the control board if the rest is OK. Even if door switch should not affect regular programs, check the door switch reading impedance or jumping it.To test wiring test continuity of red and black lines. Check black line between power cord and relay board. Test with particular attention the oven temperature sensor, that is a common cause for your symptoms. Here the part:Long Oven Sensor Kit

Here a wiring diagram for your oven.

Here all parts and diagrams.

Regards.

Ginko.