Question about Emerson EM83721 Coffee Maker

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Coffe maker trouble

Hey just bought new emerson 83721 maker, made three pots of joe and now it does'nt heat the water....light comes on on on/off switch but no action. removed bottom cover and did not see any broken contacts..could switch be bad?? I hate chinese junk but wife bought it...

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Mine did this too just the other day. I figured its either the thermostat or the heating element. However, i traced the wires leading to the both and found what looks to be a Zehner Diode. Tested this, it appeared to be bad. Did a quick bypass test to test theory. Turned it on for a sec with Diode bypassed and i mean literally a sec. Element heated right up. I believe all i need to do is replace this bad diode and all will be fine. Maybe you have same problem??? Now if only i could figure out the value of the original so i can replace it properly. :)

Posted on Aug 17, 2009

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  • Dj Williamson Aug 17, 2009

    update, after looking closely at the diode, i believe it says, 1250v 10a i report back after i replace diode, but i expect this to fix it.

  • Dj Williamson Aug 17, 2009

    update Wrong value on Zener Diode. looks more like 10a 250V....hard to read LOL

  • Dj Williamson Aug 17, 2009

    This part may also be called a Thermal Fuse



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