Intermittent electrical fault

Display on maytag oven 8114p471-60 went blank - Fixya

www.fixya.com/.../t16018814-display_maytag_oven_8114p471_60_we...

Jan 20, 2013 - Stove top electric ignition still works fine, so there is power going to the .... maytag cwe4800acb oven shuts off and display goes blank during .

It sounds like the module is momentarily losing power when the bake relay clicks off. Does it do the same thing when you use broil?
Post back with the complete model number and I will try to find the wiring diagram for it and we will walk through checking it.
Thanks/Mike

Hi.

If the element does not turn off, possible faults are:

Shorted temperature probe.
Test temperature probe reading impedance. If impedance is zero or lower than 0.500 Ohms, the the probe is shorted. A good probe reads about 1KOhms.

Contact at element. A contact in element wiring harness may cause the element to stay on. Do continuity test between ground and element and on wiring harness.

Defective control module.
If problem is none of the above, then it is the oven electronic control(ERC). The ERC can be tested reading voltages.

Testing must be done by a trained technician.

We have here a video showing how you can check the temperature sensor
We also here the parts diagram of your model

not sure of make and model but if the PCB is at fault it can easily be bypassed... the oven will work fine but you will loose clock display and time functions... a new PCB module will be very expensive

F2 - E6 Cancel key drive line open 1. Check keypad connector for firm connection (keypad connects to control board).
2. Press CANCEL. If error code returns after 60 seconds, replace keypad (also called touch pad or membrane switch). Some models incorporate keypad in to control board as one unit. In this case, replace control board (also called ERC or clock).

the ptc temp regulator has failed or gone too far out of range the oven will shut down for safety in case it wants overheat,it will need changing but is cheap and easy to replace.

you need to check the heating elements and make sure you have continuity if you do then replace the control board

We see a symptom like this sometimes due to a failure in the electronic clock/control. Although, by the time we get the control in for repair, it is usually shutting down after a minute or less. You could also have an intermittent temperature sensor or intermittent wiring to it or the door lock, so you should consider that first. The control board for this unit has been discontinued, but we repair them at www.fixyourboard.com.

F34 is a cooling motor fault. May sure that the cooling motor is running.If not, then check that there is 120 volts to the motor.The motor sensor on this oven is attached to the cooling fan. It could be a simple issue of loose wire in the connector. Find the wiring going to the relay unit from the motor, pull the connector and hold a flash light on the back side of the connector. You should see almost no light. If you see mostly light, there is your loose connection.