Bosch NET9652UC STOVE TOP shows Er 42

Very specialised high tech tops need engineers to fix. It is likely to be the power board.

https://www.google.com/search?q=Schott+Ceran+stove+top+with+5+induction+hobs+no+power

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JENN AIR
'Newer Style' Range/Stove/Oven Fault Codes
Fault : F9
Condition: Door lock safety circuit on power relay board sensed
Replace power relay board
JENN AIR
Range/Stove/Oven Fault Codes
Fault:F9
Condition: Door latch supervisory
Check door lock circuit or replace clock assembly or ERC

please add the details of make and model and resubmit

Hi friend, thank you for your inquiry!

I understand that you are receiving an "ER" error code on your Frigidaire range and you want to clear the code. "ER" stands for error, I would recommend performing a reset which can be done by flipping the household circuit breaker for roughly ten minutes. That should clear any false error codes. If you continue to receive an "ER" or any different codes please provide that feedback. I hope this helps. -Matt

Most likely the control board, is it showing an error code of any kind?

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.

unplug the stove and plug it back in. if it keeps ticking, your spark module is going bad

hook the red and yellow off the new stove to the two hot phases-then connect the white on the new unit to the neutral power connection and finally the green wire can hook to the same neutral wire also as long as the power comes directly from the main electrical panel in the home, but not a sub-panel

Hi, get ma a model # and I can get you part # and location of a glass.

Vic

Same thing happened to me. Reset your stove top by flipping your fuse off. The stove top will reset and the error code will go away.