The part(s) or condition(s) listed below for the symptom Range display board not working are ordered from most likely to least likely to occur. Check or test each item, starting with the items at the top of the page.
The oven control board displays the time, temperature, and settings for the range. If the oven control board has power to it but the display is dead, missing digits or dim, it will need to be replaced.
If the display board is dead it may not be getting power from the main control board. If there is power to the display board but the display is dead, missing digits or dim, it will need to be replaced.
The range's LED board will usually display the time, temperature, and settings for the range. If the display only partially shows digits or is dim, it's likely the LED board is faulty and should be replaced (if the whole display is not working, a defective control board is more likely the cause of the problem).
The main control board sends power to the display board to operate. If the display board is not receiving power, the main control board is likely bad and will need to be replaced.
Ensure plug is tightly pushed into electrical outlet and outlet is supplying power. Electric ranges require 240 volts of alternating current. Gas ranges require 120 volts. If the display board is not working, there could be an incoming power problem. For a gas range, if the oven light comes on and the burner sparks the range has power. For an electric range, turn on one of the surface elements. If any of the surface elements are working, the range has power. If the range does not have power, check for a tripped circuit breaker or blown fuses and correct as needed.
Many ranges have a child lock or “Sabbath” feature which will prevent the buttons from being used when the feature is engaged. The range could also be in “Demo” mode or another mode which prevents full operation. Consult the range’s user manual for information regarding locking/unlocking the control panel.
For many ranges, the control board interacts directly with the display to show the time, temperature, and settings for the range. If the control board has power to it but the entire display is not working, the control board is likely at fault and will need to be replaced.
Control Module
The range's control panel will usually display the time, temperature, and settings for the range. If the control panel has power to it but the display is dead, missing digits or dim, it will need to be replaced.
If some of the range's main display is still working, but the surface element "hot" indicator light does not, it's likely a radiant surface element is defective. You can use a multimeter to test the radiant element for electrial continuity to help determine if the part is faulty.
If some of the range's main display is still working, but the surface element "on" indicator light does not, it's likely a surface element switch is defective. You can use a multimeter to test the surface element switch for electrial continuity to help determine if the part is faulty.