PIC645F17E (Bosch) electric cooktop show error code er22. What does it mean ? How to repair ? Please help me ! Thank you !

ASK BOSCH

even look on google
https://www.coolblue.nl/en/advice/zanussi-aeg-induction-cooktop-error.html

again.

From what you have described your Frigidaire oven lock is stuck open and you are receiving error codes "F9" and "DR". The "F9" error code stands for runaway temperature (overheating). This could be an issue with your RTD (Resistance Temperature Detector) or the EOC (Electronic Oven Control). I would recommend performing a reset on your oven and you can do that by disconnecting from your oven for ten minutes. The "DR" code means that the door is not closed or the door latch is not recognizing the door is closed. This could be an issue with your door latch or control panel. If the reset does not help correct your issues I would recommend having a professional technician out to perform a proper diagnosis and repair.
From the Manufacturer

circuit board error

Google search your manufacturer make and model and the words error code 22. You can find your answer in the search results.

Hello Gloria Padilla, thank you for your post!
I understand that your Electrolux cooktop is displaying an error code "E-11" and will not allow you to operate. The "E-11" error code stands for key sensor in cook place four. This could mean a possible issue with your flex cable, right board, or left board. I see you have completed a reset on your cooktop, at this point I would recommend having a professional technician for a proper diagnosis to be completed. I hope this information is helpful. -Matt

Good Afternoon friend, I appreciate your inquiry!

Typically on an Electrolux induction cooktop the "E4" error code stands for key sensor for timer. Which means you could be experiencing an issue with the right board, center board, or left board. I would perform a reset on your cooktop and you can do that by flipping the household circuit breaker off for ten minutes.

If that does not assist with clearing any false error codes or the error "E4" continues to display I would suggest seeking assistance from a professional for proper diagnosis and repair. Hopefully this helps. -Matt

This may be malfunction of the main electronic board.http://www.ifixit.com/Wiki/Edit/Bosch_NET7452UC_cooktop

Problem: Error codes 26 or 42 after turning on too many heating elements.
Potential issue: Damaged main electronic board


Specific case: Error code 42 after turning on more than 3 elements, then already after 2, 1 until none of the cooking element could be turned on, over a period of a few weeks.
Root cause: Dying/blown electrolytic capacitor on the main electronics board.


Solution:
1) Turn off power (circuit breaker) - caution high voltage inside the cooktop
2) Lift the cooktop out of the hole in the countertop and slide it on a flat surface
3) Remove all screws around the metal housing using a torx screwdriver
4) Carefully tilt the glass top out of the housing on the front, noting that there are electrical connections in the rear, and place the rear end of the glass on a stable surface. You may need someone's assistance here.
5) After double-checking that there is no power, record the color coding of the four wires connected to the glass assembly (green for ground, white, black, red from left to right)
6) Next open the black plastic cover by removing four Torx screws.
7) Carefully remove from the connector on the left the the plastic strip connecting to the display board.
8) Carefully remove the circuit board with relays and capacitors that is held in place by plastic tabs.
9) If one of the capacitors is bulging out or showing sings of damage on top, replacing it may fix the appliance. De-soldering a bad capacitor requires some tools and skill. Replace the capacitor with at least the same capacity, voltage and use high-temp. 105C version) Alternatively, instead of replacing a $2 component you will have to replace the entire board.
10) Reassemble and done.

If you can give me the model number I can give you 3 places and there prices. The model number should be located on the bottom of the unit.