How to Replace a Thermal Fuse and Defrost Sensor in a Refrigerator/Freezer 

Good thing I watch your video, because I replaced the defrost sensor without knowing there is a thermo disc in series with the sensor and defrost heater!

I've been looking for an answer to our Samsung for a year, couldn't find any answers, I finally rang a PCB repair place and asked them, they mentioned it might be the thermal fuse, so I set about checking the freezer heater resistance and found an open circuit, pulled half the unit trying to find the fuse, got a lil confused with my head in the freezer and this time searched how to replace a freezer thermal fuse. BOOM! Your video pops up, same model unit and everything, your description explains the exact issue I have and the wording that I had been searching for, for months! Big fail for Google and a HUGE thankyou to Stan my man, your a life saver! I'm now confident on what the problem is and how to fix it. . My multi reads 0.369kohm on the fridge heater at the PCB, the repair company mentioned the board would most likely need repairing too, of cause. What are your thoughts?

Your video is SUPER helpful! Thank you so much, I'll be doing all that to avoid a service call.

So this is a high quality Samsung refrigerator ? Did metal get so expensive that it was not cost effective ? If so that is odd. Because for the last few years metal prices have stayed around $4 per 100 lbs. This looks like a nightmare, all this cheap ass plastic. I got an old GE had it for all most 30 yrs. Here recently is the only time it has ever given me any trouble. After working on a few washing machines one just over 3 yrs old Maytag. The other about 5 yrs old a Kenmore, I was amazed at how cheap and crappy they are made. I bought a new dishwasher Bocsh it is still under warrenty. Less than 3 yrs old they have been out to work on it 3 times. It has been a POS since day one. Is there any company out there that still makes things to last ? Or is everything just disposable.

Doesn't the thermal fuse need to be wrapped with foil?

Nicely illustrated Question. New GE refrigerator model gss25gypgcfs. Purchased with no warrannty from a liquidation warehouse. Everything comes on except compressor. So it does cool. Ive ordered a new capacitor and overload protector. Now my question. Can a defective thermistor cause the compressor not to come on. Thanks again

Hello sir! I have a Danby fridge that does't have a freezer. Model DAR170A2BSLDD. It is flashing E2 error which the manufacturer says is the defrost sensor. The problem is it's a very strange fridge and when I open the panel I can't see these components... I don't know if it's just me or what. Do you anything about that model? It seems all the plus are inaccessible behind the side panels that are glued shut...

Help please, replaced the defrost sensor on my Haier hrf663cjr checked thermal fuse and wiring for continuity and also main control board has been replaced but still have F5 defrost sensor error code , I can force the freezer to defrost using the button on the main control board but its not defrosting automatically is there anything else that could be causing the issue?

Thank you for sharing this video tutorial.very informative good job 👍💯

Kenmore Elite french door 795.72053.110 LED on PCB , not blinking at all ...but the fridge not cooling what could be the issue ?? compressor vibrates and heating up, Fan near compressor and inside one working too all lights inside and the panel display working fine...No error code on panel . This one has quieter compressor than previous fridges though but fridge not cooling at all..?? I added the starting relay to compressor which runs good ...Appreciate your, readers input

Lol, turn off the fuse and unplug it. We wouldn’t want the electricity jumping to the unpluged chord.

Turn off the breaker and unplug it? Why not just unplug it? 🤦‍♂️

long white one is the temperature sensor and the other round black one is the bi-metal defrost thermostat..............

is a $345 charge justified for this repair in a kenmore? 🤔

Samsung RS263TDPN refrigerator, Freezer wont cool, fridge side is working, no frost formation on freezer or fridge coils. Sir what do you think the problem is?

Big Kahuna My Maytag side by side refrigerator is running and cooling normally. However, it trips the circuit breaker every 4 hours. Since the defrost timer switches between half hour of defrost and 10 hours of cooling, I may be wrong but I don't suspect the problem is with the defrost timer. So what timing pattern could cause the circuit breaker to trip every 4 hours???

Thank very much. You were a good helper.

Most splendid, love the tip with the electrical tape. Many thx for sharing your knowledge.

Do I need to call the electric company to shut off the electricity to the house ? 🤪

it is helpful, my fridge has the same problem you mentioned from similar model RB1955VQ, can you tell me part number for this Thermal Fuse and Defrost Sensor?

Very good video ! The tape tip is tops

Hi There!. Ive got the same Fridge SR-L709EVSS Model. A while ago the fridge and freezer stopped cooling and freezing. It made a weird noise. The head on display panel indicated different readings for both the fridge and freezer. I called a repair guy who took the fridge and kept it for two days. He brought it back and the Fridge temperature went to 2degress and the freezer went to -15degrees. Everything was working fine until the freezer temperature light started flashing conitnually. The compressor stopped the compressor fan stopped and the fridge or compressor never came on after that. We literally have to switch it off at the power plug connected to the wall outlet left it for 10minutes turned on the power it ran for a while and it did the same. Stopped cooling and the Freezer light keeps on flashing. Please help would could the problem be?

I was under the understanding that all fridge and freezer thermistors (not the bi metal defrost sensor), work on the principal that it’s resistance changes based on the temperature. So how can you test for continuity and say that a thermistor showing zero ohms is in good standing. I believe each manufacturer has its own spec sheet for what it’s thermistors should measure In ohms at specific temperatures. Say at one temp a thermistor measures 750 ohms, and at a different temp, the same thermistor measures 1400. I’m also under the impression that if this measurement is off +\- 10%, it should be replaced. I’m new to all this so if my information is wrong, please correct me. Thanks!

This is a very good tutorial

Hi dityourselfstan. you don't tell us why should we replacing the defrost thermistor? and how we knew its up normal or folty thermistor?

Nice Sir. Thank you so much

Thank you for your tutorial, it was well done. What is a thermal fuse and why do they use it?

Wow what an awesome teacher! Thank u!

My refrigerator model is Samsung SR-L629EV which is completely similar to the refrigerator in this video and even have the same PCB board with the previous video from this refrigerator which you checked the thermal fuse. Because of the not-cooling problem, I opened it and I saw the ice on Ref- evaporator. Then I find out that the thermal fuse is not working and do not have any continuity. Subsequently, I changed the thermal fuse several times but it just works for 1 day and the day after the thermal fuse was burned out and lost its continuity. I used several brands but nothing helps. They just work for a day. The second problem is the fridge works very good for about 4.30 minutes but after that refrigerator fan and compressor turn off and do not turn on again automatically. The degree indicators for Ref&Freezer start blinking but after unplugging the device from electricity and replugging it again it starts working very well. Every 5 hours I have to unplug it and plug it again. No clicking sound, I changed the compressor relay but it wasn't helped; then I start to repair and put new electrical parts on the PCB and 90% of the PCB components are new. no problem in the PCB just I do not know what should I do with everyday fuse change and unplug and replug the device per 5 hours. Could you help me with the problem, please?

sorry. I've watched the video 2 times. you didn't test the thermistors. and how you know it is fail.

how do i test the defrost sensor please?

My refrigerator does not freeze. It appears defrost is always on. No frost on evaporator. Melts and freezes water at same time

I did everything as he said and things work out for me. When the part failed again I simply followed the same instructions and it worked. Great video.

Thank you

THANKS

excellent explonation thankyou.

Great video. I learned quite a bit.

سلام، لطفا زیر نویس فارسی هم بگذارید، ممنونم،

Sir very nice tutorial thanks and god bless...

thanks sir

great video, Stan! thank you for your help!

Good

What is the part number for the thermal fuse?

nice video boss

NEXT TIME USE MAGNETIC SCREW DRIVER TIP

good explanation

You say to replace thermal fuse PN DA47-00095E with a manufacturer's recommended bi-metal unit. Where can I find that new replacement? What's the part number?

supper sir good explain thanks

K

nice video sir

Bel video e spiegato molto bene 👍👍👍

sir ice freezing coil countinui after change thermal fuse y other problum please tell me now

Great teacher

yea good

if the thermal fuse is good ,do we need to replace defrost sensor ,can it be testing by tester

Thenks,jentelmem

Thank you so much sir video was very helpful.

thank u

tnx to this vid

I can't understand what's the problem with my fridge...the heater gives me 0.6 ohm, does it went bad? Also i have a second fuse (I'm not sure) that's near the fan in direct contact with the heater, which doesn't have continuity. Where i can get some help? I can post some photos

Nice