Whirlpool 503979 Thermostat - AppliancePartsPros.com

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Part Number:	AP4053749
MFG Part Number:	503979
Made by:	Whirlpool

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$22.62
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~~$26.98~~	$4.36

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Need to no color of wires to cycling thermostat #ap053749 & back to heating element or wiring diagram of that area.

Bo S for Model Number amana ale643raw

Answer Bo, On the cycling thermostat, the side that has a single pole will get the black wire. The other side has 2 poles and they are marked 2 and 3. The one marked number 3, which is the bottom terminal, will have the orange wire and the other wire goes to the terminal marked 2.

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I'm thinking I have a thermostat issue. The gas dryer fires up fine when tested (with front panel removed) but doesn't end up drying the clothes. The exhaust is clean. Thanks in advance.

Jake for Model Number lga50al

Answer Hello Jake. Check and see if the flame lites, then goes out and never lites again. If so, it sounds like the coils may need to be replaced on the unit. Also, You will need to test the thermostats and the flame sensor and make sure they are good. They should read closed for continuity. Also, check the igniter and make sure it is getting hot enough to light the gas. Here is a link on how to use a multi-meter for the testing procedures. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html

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I have the Amana gas dryer above. Several weeks ago it stopped working. No matter what cycle it was set to, pushing in to start would not work. Replaced the timer unit and worked fine until yesterday. After running a while, it dryer stops working and pushing in timer to start will not work on any cycle. After dryer cools, unit will work again as normal. Is the issue the thermostat or do you suspect something else?

Eric for Model Number ALG643RBW

Answer Hello Eric. Based on the information you provided, it sounds like the motor is bad in the unit and will need to be replaced. If the motor over heats and shuts off, you will have to wait for it to cool to restart the motor in the unit.

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Latest Questions

This thermostat has three terminals for connections. On this fuse the outside terminals are closed but the middle terminal is open to the other two. Are these the correct measurements or is this an indication that this part has failed? I am not certain this is two fuses in one device or the third terminal serves another purpose.

John for Model Number SDE3606AYW

Answer Hello John, The purpose of the third terminal is when the thermostat opens, it closes the other path to current. When this happens, it allows voltage to go to the timer motor which allows it to advance. This is part of the automatic dry cycle.

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Just sent in question but made a mistake when checking cycling thermostat component was closed not open when when cheching with ohm meter by removing blue and purple wires and with closed with wires connected is this my drying problem. Thanks

Paul for Model Number sdg515daww

Answer Paul, the regulating thermostat 503979 is probably not the issue. All thermostats in the dryer should have "closed" circuits, with the wires removed and when the thermostat is at room temperature(below 100 dgrs.). If you're sure the exhaust vent pipes and hood is clear, it sounds like a weak hi limit thermostat 489P3 or, a more likely weak gas valve coils 279834 Good Luck and Thanks

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My Amana Dryer DLE330RAW takes at least 2 cycles to dry a load (on any cycle, auto or timed) on Low temp. In the last week I have cleaned out the lint all through the machine and through the exhaust outlet, checked if it makes a difference if the house exhaust line is disconnected (just blowing into the laundry room), it doesn't, and replaced the cycling thermostat and thermostat heater, the heater coil itself and the overtemp thermostat. I measured the outlet temp from the machine to check for cycling and it DOES cycle, only the heat at the outlet is only cycling from 90 deg to 115-120 deg, but I've read this should cycle from 110 to 155 which would account for why it takes so long to dry anything. Any ideas, on what to change?

Derek F for Model Number DLE330RAW

Answer Hello Derek. If all of those parts are new, then you will need to check and make sure the proper voltage is coming to the unit. It should have around 240 volts, at the terminal block. You can test this with a multi-meter TJMA-DMT3. Here is a link on how to use a multi-meter. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html

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