My Kuppersbusch steam oven is beeping and displaying an E1 error code. The manual is hopeless. What does it mean?!

SOURCE: Kenmore Electric Oven Model 4088816 - Error Code F3

f-3 means the oven temp sensor is bad. replace the sensor and problem solved

SOURCE: Whirlpool Oven Model RF365PXGN getting a error of F1 and E2

HELLO, I HAD THE SAME PROBLEM. ALL YOU HAVE TO DO IS FIND YOUR CIRCUIT BREAKER BOX AND LOOK IN IT FOR THE BUTTON THAT SAYS KITCHEN. TURN THE KITCHEN POWER OFF FOR 30 MINUTES THEN TURN IT BACK ON. ONCE YOU TURN IT BACK ON THE OVEN SHOULD RESET ITS SELF. TRY THAT AND IT SHOULD HELP.

SOURCE: f0 error code on ge profile oven

Could be a stuck keypad. Try pressing all pads at random several times each to clear it.
If that does not work the ERC(clock) must be replaced.

SOURCE: Whirlpool Gold Electric Oven F5 E1 code on bar code

For some reason I get the same error code every time we have a power outage. If you push and hold the "lower off" button for about ten or 15 seconds it will unlock and reset. Hope this helps.

SOURCE: error code f7 on Kenmore wall oven 911.41165791

There is a probelm with the control panel. You can fix it for about a penny. The panel has a printed ribbon cable that plugs into the relay board. The ribbon cable is actually two cables pressed together, which can be seperated by simply lifting them apart. The ribbon cable has a defect in that the plasic insulation is defective, causing the leads between the two ribbons to cross, or short circuit. Simply place a thin sheet of paper between them, and make sure you push the paper down all of the way to the plastic housing, fold over the edges around the cable, you are done.