Can Automatic Defrost be bypassed on Amana ATB1932MRW
I have an Amana ATB1932MRW and am wondering if I can bypass the defrost cycle and just make it run all the time. What I want to do is like the old days, where you just check and manually defrost when you need to.
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Re: Can Automatic Defrost be bypassed on Amana ATB1932MRW
Good day, Not really effective. In the old days the coils were exposed and could be defrosted relatively quickly. In a frost free machine the coils are located behind the rear wall of the freezer compartment. That compartment is well insulated and you have no practical way of accessing it. The bottom line is manually defrosting the frost free machine involves shutting the machine down completely for about 12 hours, with the freezer door left open. For most people that would cause a lot of food to be lost.
You have made an interesting point. Actually, it's kind of ludicrous to turn on high wattage electric heaters every 12 hours or so to gain automatic defrosting. But that's the world we live in. Conventional defrost refrigerators are still made, but only come in very small sizes.
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The defrost timer is definitely the issue since it turns everything off and then at the completion of cycle turns all back on . Sometimes there usually is a defrost thermostat that bypasses the cycle if the internal temps get too high during defrosting.
you should read around 25 ohms on your defrost heater if it cks good, you should read 0 ohms on your bimetal if its encased in ice, if your bimetal reads 0 ohms and the heater reads good ohms then replace your defrost control. lmk if u need more help
Just turn the defrost tmer clockwise to cause defrost or run conditions. If you bypass the defrost timer you will have problems like shorting of wiring or loss of the timed defrost. Why not replace the defrost timer if you know it is defective? What is the model number of your refrigerator? Thanks Sea Breeze
You can by pass it but I wouldn't. You may need to replace the t'stat on this. This controls pretty much everything. Depending on your model, the defrost cycle can be adjusted to shorter cycles. Bypassing it would eventually lead to ice build up and a real mess to follow .
Defrost cycling problem which will affect cooling the fridge compartment by struck the freezer fan's function.To solve defrost problem:
First, locate the defrost timer which may hidden behindcorners of the fridge at the back bottom, in some models located in the ceilingof the fresh food section or behind the cold control cover. Once you locate thedefrost timer, slowly turn the screw in the middle of the defrost timer withstraight screwdriver until the fridge shuts off. Now it's in defrost. If thedefrost heater(s) starts, replace the defrost timer and defrost thermostat. Ifthe heater(s) does not start, unplug wire cord to check ohm test for continuityof heater. If continuity is there, plug cord wire which gives power 120volts(check specification) to heater. If heater no starts, bypass defrost thermostatby join the 2 wires in the defrost thermostat. If the heater now comes on,replace the defrost timer and defrost thermostat. If the heater itself is bad,replace it. Thanks and hope helpful.
Defrost cycling is poor.
Locating the defrost timer hiddenbehind the back bottom corners of the fridge at the bottom, in some units it's located in the ceiling of the fresh food section,and some behind the cold control cover. Once you locate the defrost timer,slowly turn the screw like wheel in the middle of the defrost timer with astraight screwdriver until the fridge shuts off. You are now in defrost. If thedefrost heater(s) comes on now, replace the defrost timer and defrostthermostat. If the heater(s) does not come on, you can ohm test the defrostheater for continuity or volt test for 120 volts to the heater(s). If you haveno power to the defrost heater(s) you can also bypass the defrost thermostat tosee if the defrost heater will come on, join the 2 wires together to bypass thedefrost thermostat. If the heater now comes on, replace the defrost timer anddefrost thermostat. If the heater itself is bad, defrost the fridge with a hairdryer, replace the defrost heater* and defrost thermostat. If the defrost timerseems "hot" to the touch or is noisy ( like a ticking or screechingnoise )...replace it.
Once defrost cycling is cleared, you will get better cooling in fridge compartment also. Thanks.
in the freshfood area there is your control assembly..the defrost timer located in there..there will be a round hole with a knob that has a slot in it..insert your screwdriver and turn clockwise until you hear refrigerator go off. this will put you into a defrost...if all is well and working ok..just replace timer....
if it goes into a defrost ,but will not come on..the defrost thermostat is most likely bad..these refrigerators have bad defrost t/s for some reason, but not always is it this fault...check your heater with a multi-meter and if okay...bypass the defrost thermostat..if its bad...this will let the heater come on..do not leave this circuit bypassed for any reason..if is a safety feature and will let the heater stay as long as its in defrost.....just replace this part ad all will be ok
If the refrigerator is not icing up it could be the defrost thermostat making the defrost cycle initiate every time the defrost timer makes defrost available. I do not recommend by-passing the defrost cycle, have the switch checked and replaced if needed.