DOMETIC RV CAMPER REFRIG NOT COOLING | DIY REPLACE THERMISTOR
Vložit
- čas přidán 14. 05. 2023
- #DOMETICREFRIGERATOR #THERMISTOR #OURCABININTHEWOODS
DOMETIC RV CAMPER REFRIG NOT COOLING | DIY REPLACE THERMISTOR
Freezer was working great but refrig was warm. Diagnose and replace of thermistor
Good job fishing that through. I hope you don't mind a little constructive criticism. The part is called a Thermistor. Keep in mind, you were also reading kilohms. So that was 8,800 ohms. A good Dometic Thermistor should ohm out between 7k and 10k ohms. Norcold would be between 30k and 32k.
NP and thanks for the tips! and i just Pinned your comment 👍
Other videos show people removing the refrigerator from the cabinet to replace the thermistor. Your trick for feeding the new sensor through saves that headache. Brilliant! Thanks!
Good luck and our refrigerator is working great glad I could help
Very nice job of explaining how to ck and replace😊
Glad it was helpful!
I followed your CZcams thermistor replacement advice. My refrigerator now is working like new! Thanks!
Great to hear! Thanks for watching
This really help me out. It took a bit to find the video with the same style. I’ll Order one.
Thanks
Thanks for watching
Great job!!!!! Smart trying to feed it through! It worked!!! Bravo!!!
Yes, thanks
Thanks for posting your method of firstly checking the thermistor and then how you went about swapping out the faulty one. Good work. I will keep this in mind if ever my refrigerator goes bung.
Thanks for watching.
Good fault finding and rectification. These things are really expensive nowadays - Looks pretty compled at the back there.
Great job.
Thanks PV hope your doing good
Awesomeness 🎉❤😊Thanks for the video!
Thanks for watching!
Helpful video and great fish-tapery, too.
Some helpful tips:
1. Always turn off the unit before pulling wire or working on it, so you dont accidentally short something.
2. . The temperature sensor is not a thermostat, but a thermistor, which is an inexpensive solid state temp sensor, aka "probe" in this video.
3. This thermistor's resistance values are reversely proportional to the actual temperature. So, on a Dometic, the higher the reading in ohms on a Fluke meter, the closer it gets to 10,000 ohms, or 10K, the "colder" the motherboard thinks it is in the refrigerator compartment.
At 10,000 ohms, it thinks it's Siberia and ceases cooling. Likewise, if there's an "open" in the wire, if you were to cut the white thermistor cable, or if a very dirty connection, that all looks like Siberia to the main board, due to high resistance reading, so it shuts off cooling.
If you were to put a 1 or 2 K ohm resistor across that two wire connector at the main board, it would think it's too hot, it's the Sahara, and engage full cooling. Reverse proportionality, aka a "reverse acting sensor".
4. Using a piece of # 16 or #14 THHN wire and electrical tape is exactly how electricians fish a wire through a conduit or drywall.
There's actually a slightly easier way: once you determine the OEM thermistor is bad with your meter (and you will need a good DMM like a Fluke), cut off the white Molex connector at the main board side. Attach the #14 or #16 gauge wire with electrical tape to that cut end.
Pull the wire from the refrigerator side. Once you have wire coming thru into the refigerator compartment, tape the small cylindrical end of thermistor to the exterior end of your pull wire, or "fish tape", and pull that smaller end into the refrigerator compartment.
Then attach the white plastic bracket or clip to the sensor on the refrigerator side, and plug the 2 conductor white Molex connector into the main board. Power it back up and wait 8 hours for it to cool down.
5. These refrigerators are ammonia-based, and ammonia is extremely toxic and explosive. So, don't mess with the refrigerant portion of the fridge. If you ever smell ammonia leaking out of it, shut it down. Clear out. Call the manufacturer immediately.
Thanks for all the tips
Great video. Thank you for sharing!
Thanks for watching!
great work looks like it will last for years
Nice job god bless
I like your video is very helpful I’m going to try this .
Glad it was helpful!
Thank you so much 👍
You are welcome
Mine is doing they same thing Tony hope this helps mine, hey at least I know how you did it, great job Tony.
If it is doing something, it will fix it. Mine still works great. Good to see you Charles.
Good job sir
Thank you
Outstanding
Thanks for watching
Great job god bless
Thank you! You too!
Gran saludo
Thank you
That’s a huge help! My refrigerator is running too cold, and it’s freezing everything I put in it. My thermistor doesn’t have the white cap on the end, it is just an exposed wire. I’m going to try clipping it and sliding it to the lowest position, but I think I may end up having to replace it. Thanks to you and your video!
From what i have heard and seen if the thermistor is disconnected or the tip off the freg will freeze up. Good luck
@@OurCabinInThewoods thanks for your reply. Looks like I'm going to have to replace it. Luckily I'll have your video to help me along.
Thanks so much for sharing your knowledge, I am going to check my thermometer on my right now to see is that the problem for not cooling on fridge. It only freezes on top. I will let you know. Thanks
Hey brother I just checked and for my surprise it’s working thank you 🙏 , you make me save almost $1500.00. Thanks again.
good deal on testing the thremistor. I'm just starting out RVing My van is 05 I've had since oct. haven't even tryed to turn on the dometic frieg.can I plug in shore power turn on frieg, how long doe's it take to get cold? I think I read 24 hours is this true or false. I believe it's orginal what are the chances of it working?if it works I would like to only use it on 12VDC.off batterys.thanks for the video Steve
I don't know what you have but must of them can plug into shore power and yes they do take about 24 hours to cool down. Heck on my old old camper it work when i sold it. You need to find the model number and google it and then you can read all about the referg. I do alot of off grid camping and use propane and battery but i do have shore hook up also. Good luck
Hi great video question the sensor control also the freezer compartment mine don't work top and bottom i like to check the ohms before I call a technician thanks
I don't think this will be your problem because freezer isn't working. I would check the fuses on the circuit board but also look for leaks. CZcams RV refrig leaking coolant. that is where i would go.
I was having same issue. Replaced the board because testing the circuit with multi meter I was getting voltage to the board but nothing to either heaters. After board still not running but atleast was detecting voltage for ac but very low. Pulled the thermistor wire off the board and suddenly the gas cycled on. After testing the thermistor it was showing open circuit. I'm letting the fridge run overnight to see what it does without the thermistor then I'll order the replacement
@@shawnswafford8169 I think if you do that the will freeze up. But mine is working perfect now good luck.
@@OurCabinInThewoods it will if you leave it too long but overnight as a test won't. It's no different than wiring the ac heater directly to a cord and plugging it in to test the fridge. It was cold this morning so I've shut it off and ordered the part. Thanks for the video mine tested open. That was what I wanted to know was how a good one tested.
Hey so our dometic fridge has that problem, except when I tried to measure the thermistat we have in rn, it shows 8.8 which means its alright. Tried to let the cable looser so I can move it higher but it doesnt seem to work...any ideas?
I learned from working on mine. So if the freezer is working that means compressor is doing what it needs. so what makes the freezer cold is the thermistor. if this was me i would put one in. I really hope it fixes the problem good luck.
Good video, but my problem is the opposite. My freezer works fine, but the 'fridge is way too cold. 27 to 33 usually. The unit is a 2024 Gulfstream Envision 21QBD. I have tried moving the probe up and down, but it makes no difference at ll.
Im no pro at these but i would still think it the sensor that is messed up. Its new enough bring it back to the dealer. thanks for watching and hope it is a easy fix.
what if the new one shows 8.00 in ice and the old one shows 4.00in in ice is the old one bad or good
I'm not a pro at this but i believe the lower the resistance i think the colder it will be. I am assuming your freezer is working great. I would make sure you show no signs of a leak and make sure your sensor is in the right position. I heard someone say if you disconnect the Thermistor it makes it go to deep freeze but only let that happen for my be 4-5 hours because it will freeze up on you. Good luck i hope this helped.
My problem was the fins in the back of the refrigerator were Dusty used the air compressor and blew them out and now it's cool and perfectly and the fans are not kicking on so it is not getting hot now Wahoo fix my problem
perfect great info. Thanks
I have the same Dometic constantly on propane, but even though, top and bottom are cold...the check light comes on every morning at about 5am and I reset till it comes on again! WHY???
Good question I am not a tech on these but just a guy who own a RV but kinda understands the system a little. question i have does your heater and stove work ok? if not i have seen a lot of people complain about the propane regulators going bad not enough pressure going to all the appliances. Sorry hey check out this channel he seems real good about these ask him he might help you. Hillbilly RV Good luck. thanks for asking.
@OurCabinInThewoods Thanks anyway and yes, everything propane works.
What’s the part number for this part?
Sorry had family here for the week. the one i used was DOMETIC Parts 3851059034 Kit, SVC Thermistor F/Dm2652. get your Model number off the refreg inside the door frame and google that number and ask for thermister good luck.
Great Video! Where did you purchase your thermistor? Part/Price
I got the part on Amazon and I think price was around $45. You need to use your model number to find the right one
Part number
Oh wow i don't remember. I looked up by my Model number as found it. Sorry.
These Dometics ARE JUNK!!!! 😡
Does the cabinet or cabinets next to your refrigerator get hot ? and do you know why mine are ? any help on this would help.
I would be thinking that the roof vent is plugged up. You should be able to open the outside door on the back of the refreg and look up and see if you see the roof vent. I have seen people put fans in the upper vent to remove the hot air faster. good luck.
I added a fan in the roof vent because I'm hotter weather the fridge isn't as efficient.