Dometic Refrigerator

marcsbigfoot20b27 wrote:
I mounted two Radio Shack 4" fans on my Dometic RM2652 on top of the vent exit under the cover. They draw .32 amps/3.84 watts each, but I run them in series with a switch so they draw 3.84 watts total and only run at half speed....high speed was too noisy.

In 110 degrees it still gives me 32 in the fridge.

That's reassuring. I'm really hoping my fan mod solves everything.

Z71 4x4 wrote:

EnochLight wrote:
I've got a Dometic RM2351. Unfortunately, all temps are factory set and cannot be adjusted. :(

"Thermistor adjustor for Dometic Refrigerators made by Dinosaur Electronics"
Clicky here

I used this on my DM2862 and now have to turn it up (warmer) before it freezes my eggs and other top shelf items. I also use the internal fans to keep the temp even throughout the fridge.

Note: I am not endorsing that seller, only showing what I purchased.
YMMV

That's pretty damn cool - thanks for mentioning that! Will definitely keep that as an option if my fan mod doesn't work. Cheers!

EnochLight wrote:
I've got a Dometic RM2351. Unfortunately, all temps are factory set and cannot be adjusted. :(

"Thermistor adjustor for Dometic Refrigerators made by Dinosaur Electronics"
Clicky here

I used this on my DM2862 and now have to turn it up (warmer) before it freezes my eggs and other top shelf items. I also use the internal fans to keep the temp even throughout the fridge.

Note: I am not endorsing that seller, only showing what I purchased.
YMMV

I mounted two Radio Shack 4" fans on my Dometic RM2652 on top of the vent exit under the cover. They draw .32 amps/3.84 watts each, but I run them in series with a switch so they draw 3.84 watts total and only run at half speed....high speed was too noisy.

In 110 degrees it still gives me 32 in the fridge.

EnochLight wrote:

ktmrfs wrote:

we were camping this last weekend in eastern oregon with our dometic. outside temps were over 100F for 3 days, side of the trailer with the fridge faced south, direct sun every day. During the day we were out exploring and the AC was off, so inside was HOT.

I was prepared for the worst with the fridge figuring it would be hard to keep fridge temps under control. Not to worry, Temps in the fridge stayed below 40F, freezer stayed at 0F.

that's with the std dometic fan running in the vent stack and a single fan on the cooling coils in the fridge.

That's crazy impressive. If I can get mine to perform this well after my fan mods, I'll be a happy camper!

one thing we have found that IMHO is near the top of the "critical" list is to NOT keep opening/closing the fridge or standing there with the door open deciding what to get out especially when it is hot outside and inside. Absorption fridges don't have a fast recovery cycle and letting all the cold air spill out onto the floor wrecks havoc with interior temps.

ktmrfs wrote:

we were camping this last weekend in eastern oregon with our dometic. outside temps were over 100F for 3 days, side of the trailer with the fridge faced south, direct sun every day. During the day we were out exploring and the AC was off, so inside was HOT.

I was prepared for the worst with the fridge figuring it would be hard to keep fridge temps under control. Not to worry, Temps in the fridge stayed below 40F, freezer stayed at 0F.

that's with the std dometic fan running in the vent stack and a single fan on the cooling coils in the fridge.

That's crazy impressive. If I can get mine to perform this well after my fan mods, I'll be a happy camper!

Tango, AE7UI wrote:
Installed 3 computer fans in the refer stack above the coils to pull the heat up and away...
We have had several days in the 90's and food is nice and cold.
Have not used a thermometer to check actual temps.

I plan to take before and after temp readings after I install my computer case fan array in the rear. I'm taking the same approach as you mounting-wise (at the top of the evaporator fins), but I'll be using 4 case fans that are 80mm and move ~32 CFM each. They'll be hard-wired, though - they only draw less than .15 amps each at 12v.

I've also got flexable case fan chutes that will direct the exhaust air directly out of the vent. Hoping it helps allow my fridge to maintain safer temps when it's 92F out and it's facing the sun because of a crappy spot.

Anyway, I digress. I'll post some detailed pics when I take this project on - hopefully this weekend.

EnochLight wrote:

Sandia Man wrote:
No fans on our Dometic and she runs like a champ. I did install an interior fan so fridge could recover quicker from the door being open constantly by our kids. Temps in the 90's this past weekend, thank goodness both Dometic AC and fridge performed flawlessly, zero issues with either going on 7 years.

So exterior temps were in the 90's yet your fridge kept internal temps below 40F?

we were camping this last weekend in eastern oregon with our dometic. outside temps were over 100F for 3 days, side of the trailer with the fridge faced south, direct sun every day. During the day we were out exploring and the AC was off, so inside was HOT.

I was prepared for the worst with the fridge figuring it would be hard to keep fridge temps under control. Not to worry, Temps in the fridge stayed below 40F, freezer stayed at 0F.

that's with the std dometic fan running in the vent stack and a single fan on the cooling coils in the fridge.

Installed 3 computer fans in the refer stack above the coils to pull the heat up and away.
Since heart rises, this seemed to be the best location.
Power is from the solar panels on the roof on a manual switch.
I could leave them run all the time and still not have to worry about draining the batteries.
We have had several days in the 90's and food is nice and cold.
Have not used a thermometer to check actual temps.

Old-Biscuit wrote:
Thermistor.....
Temp sensing device for fridge t-stat
Mounted in a clip which is attached to farthest right fin in food section of fridge.

Factory pre-set t-stat..means YOU do not have an adjustment control on fridge upper panel. But changing location of thermistor in food section can affect overall temps....minor 4*-6*F change.

Your fridge has a thermistor.
Look inside food section compartment on the fins above drip tray.

It is plugged into control board (outside compartment) top left area (P2-1 & P2-2)

OK gotcha - thanks for the clarification. I'll look on the inside of my fridge food compartment on the right side of the top fins and see if I can identify it. Cheers for the advice!

Thermistor.....
Temp sensing device for fridge t-stat
Mounted in a clip which is attached to farthest right fin in food section of fridge.

Factory pre-set t-stat..means YOU do not have an adjustment control on fridge upper panel. But changing location of thermistor in food section can affect overall temps....minor 4*-6*F change.

Your fridge has a thermistor.
Look inside food section compartment on the fins above drip tray.

It is plugged into control board (outside compartment) top left area (P2-1 & P2-2)