This refrigerator defrost thermostat will cut out at 55 degrees Fahrenheit and kick back in when the temperature drops to 20 degrees Fahrenheit. The thermostat itself is a little over an inch long while its extending wires are almost seven inches long.
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Replacing your Amana Refrigerator Bimetal Defrost Thermostat
Troubleshooting
This part fixes the following symptoms:
Fridge too warm | Freezer not defrosting | Freezer section too warm | Frost buildup
Keep searches simple. Use keywords, e.g. "leaking", "pump", "broken" or "fit".
Sorry, we couldn't find any existing reviews that matched. Try using some different or simpler keywords.
★★★★★
★★★★★
Patrick W - January 20, 2024
Verified Purchase
Part fit exactly as described, great!
Watched the video and figured out with the evaporator freezing up, every five days, it was the defrost thermostat. The old thermostat was bulging, just like other people described it. Video helped greatly, saved me from a repairman, or worse, a new fridge. $45.00 part and I'm good to go!
Thanks PartSelect!
★★★★★
★★★★★
Rex M - December 15, 2022
Verified Purchase
Easy to install but didn't fix problem.
The part arrived reasonably quickly. The installation video on the PartSelect website was very helpful. After testing the part, it didn't fix the problem of "Fridge too warm (55 deg F). So, I purchased and installed the Defrost Timer Kit but the issue didn't improve. I'm not sure what to do. (NOTE: The Condenser Fan Motor seems to be running.)
★★★★★
★★★★★
David C - May 23, 2021
Verified Purchase
Exactly the right part
The video was very helpful and described exactly what was needed to replace the part. The defrost thermostat matched the part in my Amana refrigerator exactly. Shipping was reasonably fast and my freezer is up and running again.
★★★★★
★★★★★
Nancy E - May 11, 2018
Verified Purchase
Easy repair--works great now.
Received part quickly. Easy fix. Thanks!
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Customer Repair Stories
Average Repair Rating: 3.4 / 5.0, 47 reviews.
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The fridge was running constantly. O
Once I removed the contents of the freezer I found ice on the inside back panel Removing the panel I found ice on the cooling coils and the defrost thermostat was bulged out where the wires were attached.I removed the panel with the nutdriver as shown in the video. I removed the ice maker connection and removed the panel from the freezer
... Read moresection. I then had to manually defrost the area with a heat gun. The ice had actually covered the Defrost Thermostat - which was bulging where the wires were attached.. The defrosting took the majority of the repair time - the actual Defrost Thermostat replacement only took about 20 minutes once I could get to it. I spliced the wire with a crimping tool as discussed in the video. Once all was defrosted I reversed the operation.Overall, a very simple part change out. The video was extremely helpful - if nothing else to mentally prepare me for the task.
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Edward from BILLERICA, MA
Difficulty Level:
Very Easy
Total Repair Time:
15 - 30 mins
Tools:
Nutdriver
1 personfound this instruction helpful.
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Freezer, (bottom unit) frosted/froze up blocking cool air to top fridge. Found timre andc thermostat bad.
Used information on internet as to how to check and repair unit. Due to high cost to have repair come to let me know it was broken, being handy with repairs, I took it upon myself to check the timer and therm, ordered the parts from this site , got them within 5 days, took about 40 minutes to use simple tools to remove and replace the
... Read more timer and therm, used hair dryer to defrost coil unit and turned unit on, lit has been working well since then, about 2 weeks since repair. Saved lots on repair/labor cost and parts cost. Well satisfied, will use this product company again. I WAS AMAZED HOW EASY REPAIR WAS, WIFE HAPPY NOW!
coils ice up-causes unit to run constantly-freezer temp above 28
for timer-removed front base cover, removed timer from mount plate- r2 timer-reattached plug- installed front base cover. for defrost thermostat- remove all trays and slide mounts-removed back metal cover- remove thermostat and unplug wires. Cut three inch section of brown wire with te
... Read morerminal from old thermostat and replace on new thermostat using an in line splice. reassemble
Replacement thermostat to resolve auto-defrost issue / Hot connector did not match.
I used the original connector from the spent thermostat and waterproofed the connection with a 16g wire nut and electric tape. Works great! In hindsight I would have ordered the part earlier as this is a typical solution to a freezer frosting over. Manual defrost is a pain!
Chris from Bloomington, MN
Difficulty Level:
A Bit Difficult
Total Repair Time:
15 - 30 mins
Tools:
Nutdriver
0 of 1 peoplefound this instruction helpful.
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frig was warm, freezer was fronzen over
It made so so easy watching the video. Thank you for that. I was ready to but a new one for about $800. but I did the repairs in about 20 minutes for about $23. Thank again
Donnie from Pampa, TX
Difficulty Level:
Really Easy
Total Repair Time:
15 - 30 mins
Tools:
Nutdriver
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freezer ok, refrigerator not cold.
unplug refrigerator,remove content [shelves] then remove panel screws,slide thermostat from tube and unplug both wire ends,match up both thermostat[old unit have male round connector] you'll need round connector.cut old unit wire off,cut new unit wire,strip both ends join with solder and cover with heat-shrink and reinstall,fridge is cool
... Read moreing now.
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DONALD from BROOKLYN, NY
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Nutdriver, Pliers
1 of 2 peoplefound this instruction helpful.
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Bottom freezer compartment frosting over
Followed advice from some forum posts here to replace Defrost timer and/or bimetal thermostat. First started with the defrost timer, but the freezer frosted over again. Then replaced bimetal and seems to have resolved the problem. Simple repair. If it wasnt for having to defrost the freezer each time I replaced the parts, it would have ta
... Read moreken less time to repair.
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Sal from San Jose, CA
Difficulty Level:
Easy
Total Repair Time:
1- 2 hours
Tools:
Screw drivers, Socket set
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Freezer coils icing; High temp in frig section
Noticed that defrost sensor on freezer evaporator coils ruptured and defrost timer not working -- refrig running constantly. Replaced both sensor and timer. Refrigator working properly now.
I checked your web site for similar problems. Most were the bimetal defrost thermostat. Some had defrost timer problems. Althought my bimetal thermostat was deformed by the ice I replaced both parts. The fix was easy after defrosting the evaporator. By using the spec sheets I found the locations and replaced the parts. The refrigerator is
... Read more now working fine.
Read less
Joseph from Lynbrook, NY
Difficulty Level:
Easy
Total Repair Time:
30 - 60 mins
Tools:
Nutdriver, Screw drivers
1 of 2 peoplefound this instruction helpful.
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Questions and Answers
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7 questions answered by our experts.
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Steven
April 18, 2018
If the thermostat is not working will that cause the coils to build up with frost?
For model number BG21VW-P1321501WW
Hi Steven, Thank you for the question. If the thermostat is not working this could cause the frost build up. Hope this helps!
8 people found this helpful.
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Alex
November 14, 2018
Does bimetal defrost thermostat control anything other than defrost heater? When I defrost it the fan starts
For model number SCD25N2L
Hello Alex, Thank you for the question. This bimetal thermostat senses the temperature from the evaporator. When the temperature reaches 50-70 degrees (F) the defrost bi metal turns the defrost heater off. Hope this helps, good luck with this repair!
3 people found this helpful.
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Darrell
July 10, 2019
My problem is the freezer is not keeping things frozen but the fridge keeps things at a good temp. Thank you for the quick response to my earlier question.Now i have located the defrost thermostat and it was completely incased in frost/ice. The rest of the coils were clear of any frost. I checked the operation with an ohm meter and the thermostat seems to be working properly. So i defrosted it and put it back in place and will see if that was the problem. Do you have any other suggestions to try? All fans work, the compressor cycles and i have checked the defrost timer and the start capacitor and they all seem to be working too. Thanks for the great help so far.
For model number BC20TW-P1196514WW
Hello Darrell, thank you for writing. Besides the parts you have mentioned, you may want to consider either the Freezer Door Gasket part PS11738527, the Cold Control Thermostat part PS10062758, or the Defrost Heater part PS11738226 for your model. We hope this helps.
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Mike
September 17, 2019
Refrigerator does not keep items cold and the freezer does not freeze things. Is there an overall thermostat that controls both? If so, what is the part name and what is the cost? (bottom freezer refrigerator).
For model number BG21*
Hello Mike, thank you for contacting us, In order for us to locate the correct parts and repair information we will require the full model number of the unit, BG21 is incomplete. Once you have located the model number please feel free to resubmit the question and we will be happy to help you. Look forward to hearing from you!
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Dennis
July 22, 2017
To replace the bi-metal thermostat in this refrigerator, it appears i need to have full access to the back panel in the freezer area. Doing this would be made simpler if i can remove not just the trays that hold the food and ice but the freezer drawer itself. I don't see how to do that. How does one release the drawer slide rollers to enable removing the whole drawer?
For model number ARB2117BS
Hello Dennis,
Thank you for your question. Unfortunately there is no way to do that. You would have to remove your freezer drawer.
I hope this helps!
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Nick
August 14, 2021
I have ice build up in the freezer. Almost an inch of ice per month. Will the bimetal defrost thermostat will fix my problem ? Or is it a leak somewhere that cause ice build up in the freezer ?... i have no ice maker on the refrigirator.
thanks
For model number 596.61862100
Hello Nick, Thank you for writing. There are three main parts to check on for your self-defrosting fridge. The most common is Defrost Thermostat PartSelect Number PS11738231 or Defrost Timer PartSelect Number PS2167006 and checking for a tight seal on the Freezer Gasket PartSelect Number PS11738530 .Good luck with your repair.
Where is the thermostat control on the refrigerator. We cannot find it
For model number WRX735SDHZ02
Hello Christy, Thankyou for the question. The temperature is controlled by the Control Panel PartSelect Number PS16620217 on the Door. We hope this helps!
