[rlbyrd]

I have replaced the cooktop light bulb. The light still does not work. The bulb checks okay but I have no power to the wires at the socket. I ran the diagnostics test and same results. It appears that I need part #ps993107 or (993103-993107) I'm not sure. Any help would be appreciated. Thanks

[PS Staff - Sheila]

Did you remove the socket and check the wires?

If you still have no power you will have to replace the board.

Here is a link to your microwave model mh1170xsy.

What color is your microwave?

PS993103 is white.

PS9931004 is black.

PS993106 is biscuit.

PS993107 and PS993105 are stainless steel.

[jmontlouis]

Electronic circuit board , part #7103 is no good I would like to know what it is?
A voltage regulator, a transintor, or a SCR. If I can find this part I thing the board will be OK.
Jean

[microwavedisplayDOTcom]

We see this a lot. The problem is on the control panel, which we regularly repair for customers nationwide. See my user name?

This light failure often occurs when a bulb goes out and the filament shorts, or when the bulbs are removed or installed without first unplugging the oven from the power line. Either can cause such a failure on the controller.

You don't have to go to the expense of getting a new circuit board. It can be repaired.