Can't find temperature control

HI

If your thermostat cannot control your motor automatically for on and off then you should change it as it is the only unit that can cause this problem.

If the machine is running all the time a few things could be happening, The defrost timer could be bad, but if that is the case then you should see a build up of ice forming on the wall that covers the evaporator coils. Another situation is that your machine is low on freon and not reaching a temperature cold enough for the temperature control to shut the machine off. Third and last the temperature control itself could be bad and thinks the machine isn't cold enough. in that situation you would notice ice build up as well. Hopefully this helps.

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check the gasket around the door very likly that the door gasket has a gap or is not mounted so that will make the freezer run all the time,

Try turning the temperature control to off, unplug the electrical power cord from the power outlet, defrost the appliance, clean the condenser, plug the power cord into an electrical outlet, set the temperature control to a low setting, lay a thermometer in the freezer for a few hours and see what happens to the temperature in the machine.
Check the integrity of the seal of the door gasket by seeing how the door seal will hold a slip of paper in various locations along the freezer door gasket. A loose hold on the slip of paper shows an area where hot moist air can get into the freezer and cause ice build up.

Check for ice build-up in and around the freezer fan where the blades are, if you can see ice in there (some times it may look like white foam but dont be fooled, it will be ice), the fan will be hitting it, defrost the freezer and check defrost element, (you will have to dismantle freezer section to get to it but reletively simple job) disconect from mains first. Good luck

Dirty condenser, condenser fan motor is not running, freezer overpacked, bad thermostat, evaporator ice build up and it blocks the air flow. evaporator fan motor is not running or sealed system problem.

We had the same problem and discovered that the ice making device was "on" and we don't have it hooked up.  In the "on" position the pump begins to run but there is no water to pull so it sounds like breathing.  The ice making bar for us on our Jenn-Air is located near the ice trays and ours needs to be in the up position for off.  Hope this helps!

The bin control shuts it off when the ice bin is full. Without a bin control it should keep making ice and never stop.

feel the sides or the coils on back if it has any see if they are hot or cold

need a model #.. is this a frost free freezer or a refrigerator ?