Maytag range model MGR7662WB2. oven will not come on. when I test the DSI board I should have 120volts across J1-4 and J1-6 in bake mode but I only measure 4 volts. any idea what may be the problem

If the baking element stays on even when the oven is turned off or when it's set to a different temperature, the issue might be with the relay board. The relay board is responsible for sending power to the bake element when it's supposed to be on, and cutting off power when it's supposed to be off.
To confirm if the relay board is the culprit, you can try the following:

1. Turn off the power to the oven at the circuit breaker.
2. Remove the back panel of the oven to access the relay board.
3. Look for any signs of damage or burning on the board.
4. Inspect the connections and wiring for any signs of damage or burning.
5. Use a multimeter to test for continuity across the contacts of the relay board that control the bake element.
6. If the continuity is present when the oven is turned off, or if the board is visibly damaged or burnt, then it's likely that the relay board needs to be replaced.

If the relay board is determined to be the issue, it's recommended to have a qualified technician replace it as working with electrical components can be dangerous.

Its likely sab as in Sabbath mode.

Here is your online use & care manual which explains all about the Sabbath mode on page 15:
http://www.maytag.com/cust_serv/pdf_use_care_manual/8113p462-60.pdf (http://www.maytag.com/cust_serv/pdf_use_care_manual/8113p462-60.pdf)

There is a service flash, W10622771, for gas ranges of your model number--the bake burner ignitor is not lighting the gas--it's a direct spark ignition type. The ignitor is sparking but no ignition. Possible causes are (1) Wiring harness might be pinched between the bake/broil ignitors and the DSI board. (2) DSI mounting bracket may be contacting a solder joint on the back of the board. (3) Positioning of the ignitor and gas burner ignitor ports may be out of adjustment. (4) Ignitor electrode deterioration
Facing the range, the DSI board is behind the control panel on the left side, mounted in the bracket.You'll have to remove the back cover to expose the boards. BE SURE TO UNPLUG THE RANGE BEFORE DOING THIS. I can provide diagnostic mode if you want to proceed further.

Do you still have a display on the control if so good verifies 120 volts to control easiest way to test go to terminals on element with a meter you are looking for 240 volts at terminal when bake is turned on if no voltage either a broken wire or control board is not outputing on one of the heat relays

Range "Older Style"
F2 Oven too hot Replace relay board (if present) or oven temperature sensor

Range "Newer Style"

F2 Oven temp sensed; over 600F sensed by control in time of day mode, bake mode, or over 900F sensed in clean mode. Ohm test the oven temperature sensor, if OK, change power relay board.

1) Confirm if its just the bake or both bake and broil that doesn't work. 2) If its just the bake you will most likely need to replace the bake ignitor. 3) If its both you need to test for voltage output from the electronic control to the ignitors.

Hi,
If your electric oven is not heating then you probably have a bad heating lelement in your oven. This is not that hard to fix yourself...
Check out this tip that I wrote about the Oven not heating problem..

Oven Problems Electric Oven is Heating Slowly or Poorly
http://www.fixya.com/support/r4511800-oven_problems_electric_oven_heating

heatman101

Maybe bake element is bad or bake relay on board is bad.

Good Morning!
What youre experiencing could be a result of a faulty oven temperature sensor, a faulty oven control board or relay board. Youre more than welcome to send both the main control board and relay board for evaluation. Fixyourboard will test and repair both as needed for less expensive than buying new, and include a two year warranty.

5700M662 60 Jenn Air OVEN CONTROL BOARD

Here are the codes for Maytag Ranges:

MAYTAG
Type "C" and "D" Clocks Range/Stove/Oven Fault Codes Failure
Code Condition Check/Repair F1 Supervisory relay enable shorted (non-cook mode); sounds alarm and inhibits cook mode if alarm fault monitor is always active in non-cook mode, and requires removal of power until serviced. Usually a bad touch pad or clock assembly (also called the ERC). Replace touchpad or ERC F2 Bake/broil/clean temp runaway alarm; sounds alarm and resets control to non-cook mode when bake/broil/clean temp exceeds programmed limits. Usually means a stuck relay. Electric @ 525F (bake), 640F(broil), 900F(clean)

Gas @ 525F (bake), 640F(broil), 900F(clean) F3 Open temp oven temperature sensor; sounds alarm and inhibits cook mode Replace oven temperature sensor F4 Shorted temp oven temperature sensor; sounds alarm and inhibits cook mode Replace oven temperature sensor F5 Supervisory relay enable open (cook mode); sounds alarm and resets the control to non-cook mode Replace electronic range control (ERC) F5 Missing a/c line cycle detector; displays code (no audible) Unplug appliance for two minutes, should clear problem F7 Function key shorted; too hot at the clock assembly (also called the ERC) or shorted touch pad or clock assembly (also called the ERC) Replace touchpad or ERC F8 Analog/Digital supervisory; sounds alarm to non-cook mode Replace ERC F9 Door latch supervisory (door latched) Unlock door and check switches or clock assembly (also called the ERC) F0 Cancel key supervision Requires the removal of power until serviced. See qualified technician