Safety first: Turn off power at the breaker and verify the oven is cold before working inside the cavity.

Check the temperature sensor:

Locate the oven temperature sensor probe inside the cavity (usually on the rear wall, upper area).
Remove the mounting screws and gently pull the sensor forward to access the connector.
Disconnect the sensor and measure resistance with a multimeter at room temperature (around 20–25°C). A typical Midea NTC sensor should read roughly 1000–1200 Ω at room temperature (consult your model's service data if available).
If the reading is infinite (open) or far outside spec, replace the oven temperature sensor.

Check wiring and board connection:

If the sensor tests good, remove the rear cover to access the main control board.
Inspect the sensor harness from the cavity to the board for cuts, burns, or loose connectors.
Reseat the sensor connector on the main control board.
If wiring is intact and E1 persists, the main control board sensor circuit is likely defective and should be replaced.

Oven displays E1 and will not heat or cancels cooking shortly after start

Possible Causes