790.9621240B Kenmore Range / melted terminal block

[fixingStuff]

Model Number

790.9621240B

Brand

Sears Kenmore

Age

More than 10 years

Kind of a classic here -- turned the oven on, smelled something burning ( not food ), then flash/pop from behind the unit.
Red wire entering the terminal block from inside the range is charred and its corresponding 1/3 of the terminal block is badly melted.
Got a replacement block that's ready to go in, but I'm concerned it will just happen again.
I believe loose/bad connection is a typical cause of melted terminal block ...don't know how a connection could go bad after so many years ( corrosion maybe? ), but a new terminal block with tight connections should take care of that...so no future problem there.
Plug connection is tight -- so no problem there.
Theres no short in the single heating element -- so no problem there.
I did notice that resistance is zero btw black & neutral wires inside the range that connect to terminal block -- does that mean there's a bad news short in internal wiring?
Any other melting causes come to mind that we should be looking for?

 

[jeff1]

Hi,

I believe loose/bad connection is a typical cause of melted terminal block

Yes.

Replace the block and cut any burnt wires back to good clean connections and you should be fine.

LINK> Terminal Block Kit



jeff sr.