Kitchenaid KMHS120ESS4 Microwave hood light won't turn off

[Lkrav3]

Model Number

KMHS120ESS4

Brand

KitchenAid

Age

1-5 years

Our vent hood light was out (or so we thought). I went to unscrew it (not realizing you should unplug the whole unit first) and it lit back up... so I screwed it back in. A few seconds later, it popped/shattered. I then replaced the bulb and now it stays on bright even when you cycle through the low, high, and off switch settings.
I have a new control board on the way, but after a little research elsewhere... I'm wondering if I can't repair the existing circuit board myself. Looks like from the wiring diagram for our model that a TRIAC on the hood lamp circuit is the likely culprit? I opened up our panel to get a look at the existing TRIAC and ordered a replacement BT136-600D that should arrive tomorrow or next day.

Does this sound like a logical step/solution?

Thanks for any help/advice/direction.

 

[rhellman]

Did this end up working for you? I'm having the same problem and don't want to spend $200 on a new control board.

 

[Wx4usa]

Did this end up working for you? I'm having the same problem and don't want to spend $200 on a new control board.

Same model number ?

 

[rhellman]

Same model number ?

Yes. Same model number

 

[rhellman]

It's so frustrating. I have the microwave, and everything works fine except the light stays on. Is there any issue with just leaving the light on indefinitely? I'd prefer not to spend $200+ fixing a microwave I bought for $350.

 

[Wx4usa]

I dont think there is an issue just leaving it on. I leave mine on all the time. Maybe we will hear back from the original poster and see if the triac worked.

 

[Wx4usa]

Did this end up working for you? I'm having the same problem and don't want to spend $200 on a new control board.

The original poster reached out and said the triac did fix the issue. If you’re comfortable desoldering and soldering it’s an inexpensive fix. Less than $10 for a triac.

 

[rhellman]

The original poster reached out and said the triac did fix the issue. If you’re comfortable desoldering and soldering it’s an inexpensive fix. Less than $10 for a triac.

Unfortunately, I have no idea how to solder. I called a few appliance stores and they don't either. I called KitchenAid because it's under warranty but they would charge me $139 to send someone out to verify the issue. So there isn't a path to me fixing this for cheap unless I find someone who solders and works on appliances in San Diego County.