Dometic Refrigerator gets too cold

[goldwinghauler]

I have an 8 cf Dometic DM2852. Instead of the usual gets too hot inside, mine runs about 28-29 degrees, causing items to freeze. I contacted Dometic (useless phone call). They told me to take it in for service. I’m in between camping trips so I took it in yesterday. The tech checked the thermistor and its value on the cold test was 400 ohms less than the minimum. They told me to go home and run the fridge to test it again for 24 hours. I did that and called the Service guy today at 11:30. He said it has to be a bad control board. Thanks to Dometic for assigning another tech person to the case. With another wasted day. Open the fridge for 30 minutes, move the thermistor to the bottom of the right fin and call back in 24 hours. That’s tomorrow. We leave on Saturday for two weeks of camping including a Truck Camper Rally in Gettysburg, with a busted fridge. Quite sure there will be another BS solution tomorrow and no time to get parts ordered and installed by Friday night.

Help, Help, Help what should I do or try?

[dougrainer]

goldwinghauler wrote:
Final question for all you tech guys, can the eyebrow control panel be switched from fully automatic to fully adjustable?

Below is from Dometic. You need specific Part Numbers of the lower control board. The "product" of the refer refers to the 3rd number on the serial sticker. Model===Serial===PNC. PNC stands for Product number. Then you need the Part Number of the lower control module. Doug

Yes you can.

What is the product of the refer?

There are two different upper controls with adjustments.

What is the part number of the lower board

[goldwinghauler]

Final question for all you tech guys, can the eyebrow control panel be switched from fully automatic to fully adjustable?

[goldwinghauler]

Latest update:

My service guy finally spoke to a Tech Supervisor at Dometic. They have agreed to replace the control board and the thermistor under warranty. So when I return at the end of September they will be swapped out.

Thanks for everyone’s response.

[goldwinghauler]

Thanks for your help. I will probably just buy a Norcold unit take the Dometic POS out and shoot it up with a shotgun for fun!

[dougrainer]

goldwinghauler wrote:
I have s better quality hanging thermometer. Plus things are freezing in it. Lunch meat, vegetables and fruit.

How hard is it to swap out the thermistor?

I have s better quality hanging thermometer. Sorry, NO SUCH thing exists:B I don't doubt things are freezing, but the ONLY way to determine what the refer temp REALLY is, is by a cup of water that has been in the refer for at least 12 hours after cool down. Would you feel OK if your Doctor used a "better Quality hanging" thermometer when you go to the doctor:B Or the health dept in your city did the same when doing Restaurant food inspections? Doug

[TakingThe5th]

goldwinghauler wrote:
I have s better quality hanging thermometer. Plus things are freezing in it. Lunch meat, vegetables and fruit.

I'm slightly off-topic here, but I have an "outdoor" thermometer that has a couple of remote sensors. I keep one of those sensors in the refrigerator. Very helpful-temps do vary and it's not because I opened the door. Easily monitored.

[goldwinghauler]

I have s better quality hanging thermometer. Plus things are freezing in it. Lunch meat, vegetables and fruit.

How hard is it to swap out the thermistor?

[dougrainer]

goldwinghauler wrote:
As stated last night one guy said slide it up to warm it up, which is contrary to Dometic instructions. I slide it up last night and the temp went up to 34 degrees. I lowered it back all the way to the bottom again this morning and right now it’s at 29 degrees again. Very odd.

How are you taking temp measurements? The ONLY way is the temp of a cup of water. Doug

[goldwinghauler]

As stated last night one guy said slide it up to warm it up, which is contrary to Dometic instructions. I slide it up last night and the temp went up to 34 degrees. I lowered it back all the way to the bottom again this morning and right now it’s at 29 degrees again. Very odd.

[wa8yxm]

I see lots of "Replace" posts but only one "Slide it to the bottom of the fins"

Did you try the slide yet???????

[dougrainer]

bob213 wrote:
If you want it fixed before you leave do what Doug suggests. Doug...Is a "Snip the tip" going to be the easiest solution or can he easily replace the thermister?

The OP must have a AUTO temp refer. I have never seen or used a SNIP THE TIP. But, from postings it appears to be a way to get an adjustable tstat for the AUTO temp refers. MOVING the thermistor up and down in this case is USELESS. This procedure is indeed for Auto Temp refers. BUT, it only changes the temp by about 4 degrees MAX. The normal temp of an Auto Temp refer is around 34 to 36 degrees. Moving the Thermister will only get it to get colder about 31 to 33 degrees. The OP has 28/29 degrees, which indicates a faulty Thermister. Doug

PS, YES, for the cost of a Thermister, I would replace myself rather than waste gas and time taking the RV into a warranty center.

[bob213]

If you want it fixed before you leave do what Doug suggests. Doug...Is a "Snip the tip" going to be the easiest solution or can he easily replace the thermister?

[goldwinghauler]

I just found an article where the guy suggests moving the thermistor up an far right to make it warmer. So I am trying that overnight to see what happens. I’ll report back in the morning.

[goldwinghauler]

Where would be the best place to try and get one for reasonable cost and by the weekend?

I could always pick one up on my trip to Gettysburg from Tennessee.