My Whirlpool Dryer model# GEW9250PW1 ran fine, but had no heat. I purchased the Dryer Thermal Fuse, didn't work, still no heat Then ordered Dryer Thermistor. Still no heat. Finally ordered the Dryer Heating Element and now have heat. However the dryer turns off after about a minute with an E1 error. What do you suggest?

If you replaced the thermistor and still get the E1 error then the control board is bad and needs to be replaced. The board you need for your model is linked below:

https://prismparts.com/products/whirlpool-dryer-main-electronic-control-board-pp3413106?_pos=1&_sid=dc204d17c&_ss=r