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790.9621240B Kenmore Range / melted terminal block

fixingStuff

Member
Joined
Aug 6, 2022
Messages
1
Location
80122
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

Appliance Tech - Moderator
Staff member
Joined
Oct 10, 2004
Messages
26,084
Location
Ontario, Canada
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.

frigidaire-terminal-block-kit-5304409888-ap2584987_01_l.jpg
LINK> Terminal Block Kit


jeff sr.
 
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