Wiring help with a freezer

[15flounder]

Here is the wiring diagram from a Kenmore upright freezer. The temp control is defective but it’s obsolete. It appears that two sets of contacts aren’t necessary. Can I just get a universal freezer control and connect the red and blue wires together on one terminal? Thanks in advance.



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[crazzycajun]

What’s the contact rating on the universal controller?

[R600a]

Do those contacts actually always close together? Because it doesn't make sense to me.

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[15flounder]

The amp load of the whole thing won’t exceed 5A so probably any control would work. I don’t know for a fact that the contacts close and open together. Black-to-red is only open in the off position. Black-to-blue never closes and that’s the problem. I jumped the black and blue and the freezer runs which raises the question “what does the red wire do?” I can’t really see a reason for it except to notify the “electronic module” that cooling is being called for. Could it have something to do with the built-in temp alarm?


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[idontgetit]

It will work just fine.

[2sac]

Use a SPST control to energize a DPDT relay. Not sure why there are 3 power sources going into the module.

[idontgetit]

Lolely to indicate when the comp is running, when defrost is on , and to power led temp read out is my guess