One of the light sockets disintegrated - Zephyr Milano-S ZMI-M90S Kitchen Hood

Please refer to the owners manual.

Time to disassemble the engine again,,, you can see what is causing the problem ... proceed from there...

dont worry about insulation missing i have worked on ovens for many years and often bits are missing from earlier repairs and the oven will work fine.

need the three numbes before the period on model #

This is one of the countrys' most popular sedan, maybe second to the Ford Taurus. Try E-Bay or a local junkyard.
We don't have these issues in Rhode Isalnd as no one uses their directionals here! LOL

Black is hot-white is neutral-blue is your light kit and goes with the black- yellow? should be a green for ground.

In effect (given the unit is wired correctly) without insulation on the socket, you have an exposed neutral wire in your oven -- this is certainly not as dangerous as an exposed hot wire, but does present risks. I recommend replacing the light sockets -- you'll sleep and cook a lot better.

I would guess your power supply board is slowly disintegrating. It is hard to tell what it is, until it finishes frying itself out. Plan on replacing the power board soon, 1-3 months maybe.

Tail lights acting insane?

We had the same issue with our 2000 Pontiac Montana. Brake lights, turn signal lights, running lights, back-up lights and emergency flasher didn’t work at all or operated at random. The cause: poorly designed aluminum contacts on the tail light circuit board and wiring harness connector arced over and disintegrated with normal use.

Pull the tail lamp assembly, remove the electrical connector and look for burned contacts on the connector plug and the connector socket (they call this long plastic piece with the socket the circuit board: it includes the four bulb sockets. Replace the circuit board and the wiring connector.

You can DIY this job with basic auto mechanical/electrical skills and tools. The two circuit boards and the two connectors set me back $230 (2009 cost) for new parts. The electrical contacts on the factory replacement parts are improved.

I needed a T-30 torx driver to remove the tail light assembly (you need this to change out bulbs, too), wire cutters, wire strippers, electrical tape and an electrical lug crimper to do the job.