Bosch 500 Glass Cooktop discoloration

I use a straight edged razor blade on mine and it finally got clean

Hello,

Is what broken and lools ugly the glass for the cooktop? if that is the case you should know the cost just for the glass is $470.00 plus the service call and labor it's going to be at least $600 to replace the glass

Gene

GLASS MAINTOP ASSY
Part Number PS253905
price around $812.92

Replaced main glass cooking surface on cooktop

First, shut of the breaker to the cooktop.
Then removed two screws to release brackets holding cooktop down. Then lifted the cooktop out of the recess in the counter top and removed the screws around the outside of the glass top. Removed the old, cracked top, by unplugging from the motherboard.
Turned the new cooktop upside down on table and placed weather stripping around the entire underside outside edge (to keep spills from going under the cooktop and cushion the cooktop from the counter top.
Then plugged the new cooktop into the motherboard, replaced screws around outside edge, lowered the cooktop into the recess in the counter, and reinserted the two screws into the hold-down brackets.
Turned the breaker back on.
Note: Just need Screw drivers and 40 minutes of your time.

You may have melted the bottom of the pan you were using into the glass. Copper bottom and alum pans sholdnot be used at high temps on a glass top. (never use porclin or glass pots)High temps can etch(mark or discolor) the glass.

A small crack, turns into a big crack, Short of ordering a new piece of glass, there is no "fix" sorry. YOu can continue to use it, but eventually it will run across the cook top, and then shatter the glass... Better be safe than sorry.

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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.

The cooktop box has a metal flange. Make sure the cooktop when dropped into the countertop is resting on ther metal flange and not the glass edge by itself. If it rests on the glass alone the weight will cause the glass to crack at some point in time.