Whirlpool AWZ121 how to test thermostats?

Home › Forums › Public Support Forums › Help And Support › Tumble Dryer Help Forum › Whirlpool AWZ121 how to test thermostats?

Viewing 15 posts - 1 through 15 (of 15 total)
  • Author
    Posts
  • January 19, 2015 at 2:39 pm #83802
    mikeymo
    Participant

    Last night it stopped heating, but carried on spinning.

    Took the heater out (I’d replaced it myself a couple of years ago). Connected a meter across it. Got 26 ohms, which I gather means the heater is OK.

    How do I actually test the thermostats? There are , according to the manual, 2 of them on the heater.

    Also, the exhaust, how do I:

    a) test it

    b) remove it

    Though after fiddling with it yesterday it seems to be working again. I’m just a bit concerned that the thermostats may have failed and leading to a risk of overheating.

    Thanks.

    January 19, 2015 at 3:54 pm #423772
    Martin
    Participant

    Re: Whirlpool AWZ121 how to test thermostats?

    Heater normally comes with stats so presumably they too were fitted? The stats attached to the heater box should both be closed circuit. Often the spade terminals to them overheat and burn causing stat failure. A new pair of stats may be all that’s required. Check them out!

    January 19, 2015 at 7:36 pm #423773
    mikeymo
    Participant

    Re: Whirlpool AWZ121 how to test thermostats?

    Thanks.

    How do I check the stats. Where do I actually put the probes of my multimeter?

    January 19, 2015 at 8:49 pm #423774
    Martin
    Participant

    Re: Whirlpool AWZ121 how to test thermostats?

    Remove spades on each one first.

    January 19, 2015 at 9:00 pm #423775
    mikeymo
    Participant

    Re: Whirlpool AWZ121 how to test thermostats?

    Thanks. I must be really thick, you’ll have to bear with me. I take the spade connectors off, yes? Where do I place the multimeter probes?

    January 19, 2015 at 10:18 pm #423776
    Martin
    Participant

    Whirlpool AWZ121 how to test thermostats?

    I’m bearing with you………..on the thermostat terminals.

    January 19, 2015 at 10:35 pm #423777
    mikeymo
    Participant

    Re: Whirlpool AWZ121 how to test thermostats?

    One on each, yes? That’s what I did and it read 26 ohms. So OK then?

    January 20, 2015 at 5:03 pm #423778
    Martin
    Participant

    Re: Whirlpool AWZ121 how to test thermostats?

    26 ohms reading on both stats? They should both be zero ohms (dead short) and you say the element also reads 26 ohms? Has your multimeters dial stuck like the proverbial village church tower clock?

    January 21, 2015 at 11:01 am #423779
    mikeymo
    Participant

    Re: Whirlpool AWZ121 how to test thermostats?

    Thanks for your replies Martin. We must be at cross purposes here. I can’t really understand how I’m supposed to measure the thermostat resistance. The multimeter is digital.

    The heater’s back in so I can’t take a photo. And as the tumbler drier seems to be working OK we’ll just have to leave it for now.

    Thanks for your efforts.

    January 21, 2015 at 1:58 pm #423780
    Martin
    Participant

    Whirlpool AWZ121 how to test thermostats?

    mikeymo wrote:I can’t really understand how I’m supposed to measure the thermostat resistance.

    You can’t, the thermostats are a simple switch and not a resistive device, therefore zero ohms. In the case of these stats the terminals burn and frequently fail as a result. Look closely at those stats but put your multimeter away first! 😉

    January 21, 2015 at 3:13 pm #423781
    mikeymo
    Participant

    Re: Whirlpool AWZ121 how to test thermostats?

    <img src="
    ” alt=”” class=”bbcode-img”>I did take photos, I remember now:

    1. Are the two things that are roughly pencil shaped (short fat pencils!) the thermostats?

    2. How do I measure the resistance? Yes, I understand it’s either zero ohms or infinity.I realise it’s a switch.

    3. I took two spade connectors off those two things, put the multimeter probes on each, and got 26 ohms, roughly speaking.

    January 21, 2015 at 3:16 pm #423782
    mikeymo
    Participant

    Re: Whirlpool AWZ121 how to test thermostats?

    http://s1117.photobucket.com/user/mikeymo1603/embed/slideshow/

    January 21, 2015 at 3:55 pm #423783
    SWERV
    Participant

    Re: Whirlpool AWZ121 how to test thermostats?

    The thermostats are the two things that are screwed to the top of the heater. One has two white insulators and the other has the two green insulated terminal covers.


    Sent from my iPhone using Tapatalk

    January 21, 2015 at 4:01 pm #423784
    mikeymo
    Participant

    Re: Whirlpool AWZ121 how to test thermostats?

    Thanks. To the left hand side of my photo, yes?

    So to test them I take the spade connectors off? Then test for open or closed circuit, 0 ohms or lots of ohms? And I want 0 ohms, assuming the heater is cool?

    What are the two long things, btw? Thermocouples? or just terminals.

    Thanks for your patience with this.

    January 21, 2015 at 4:03 pm #423785
    SWERV
    Participant

    Re: Whirlpool AWZ121 how to test thermostats?

    The two long things you are describing are the terminals for the heater.
    To test the thermostat, remove the two wires to each stat and measure the resistance. You should have 0ohms.


    Sent from my iPhone using Tapatalk

  • Author
    Posts
Viewing 15 posts - 1 through 15 (of 15 total)
  • You must be logged in to reply to this topic.