20 Most Recent Jenn-Air 27 in. Electric Single Wall Oven with Multi-Mode Convection - Page 2 Questions & Answers

You will need to replace the display assbly.
It is a very common problem with maytag/Jenn Air

Part # 71003424 runs around $185.00
It's a common issue in Jen-air ovens,the display burns out,the control itself will still work fine but you just can't read it.

Should be C3 Capacitor on control panel board replace capacitor from Digi-key Corporation get panel out and see what C3 capacitor says what voltage and uf and temp celcius and order from them solder it takes two -10 minutes..