Thermal fuses

Thermal fuses

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Thread: Thermal fuses

  1. #1
    Join Date
    May 2013
    Posts
    1,639

    Default Thermal fuses

    Have had a few dryers that blow thermal fuses even with op and up stats that check good ( show continuity).
    I always thought first line of defense was p.o. stat then hl stat then thermal fuse/ cutoff.
    Most of these were one with horizonal elements I think.
    If the first two are in working order, how could the cutoff be blowing.
    I am wondering if the motor switch might be sticking at the heat contacts.
    Comment?

  2. #2
    Join Date
    Feb 2012
    Location
    Canada
    Posts
    2,625

    Default

    even with op and up stats that check good ( show continuity).
    Just because it shows continuity doesn't mean the temp is correct nor does it mean the thermostat is good.....just means it has continuity.

    I always thought first line of defense was p.o. stat then hl stat then thermal fuse/ cutoff.
    Not operating as that cycles the heat on and off during the cycle. Safety or high limit should be what takes over....but things like a shorted element, someone forgetting to clean the lint filter, wishy-washy vent can/will blow the thermal fuse if if the safety opens up as the safety will cool and reclose.

    jeff.
    http://www.applianceaid.com/
    Appliance Repair Aid

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