Anyone have a source for those little 12v clip on fans for the cooling fins on the absorption frig? Found some old posts but the item is no longer available. I don't really want to make up a muffin fan deal; prefer a quick fix. I see a Dometic unit for like 70 bucks but that's a bit pricey for this project. I have two mounted now (ken hatt's photo below) but one is no longer operable so I need two more. Thanks.
jor
These guys have em'.
http://rvcoolingunit.com/-Improve-your-Cooling-Performance-items-C320215.aspx?sid=298
I think that same jar of jam is still in our refrigerator! 8)
see ya
ken
I like our muffin fans, no idea where Brett got them. They're wired to one of the rocker switches above the sink. THEY SAY, they perform best in high humidity, but I use them (daytime only, they are a little noisy) up here and think they help. ^.^d
Mike,
Suspect you are talking about the two muffin fans mounted at the top of the refrigerator condenser exhausting UP. Controlled by switch over kitchen sink.
Very different than muffin fans on the inside of the refrigerator blowing on the fins to more evenly distribute cooling.
Both have their purpose.
Jor
I found mine on ebay for $25 a year ago. Mine has the LED light with 2 fans.
John M.
I have the kind from RV cooling units that Ken referred to. I just had the inline fuse blow and contacted them to find out the fuse rating.
These are the ones I bought.
COOPER IND BUSSMAN MICROTRON MCR-2 FUSES IR50A125VAC IR300A125VDC (10 PCS... (https://www.ebay.com/itm/COOPER-IND-BUSSMAN-MICROTRON-MCR-2-FUSES-IR50A125VAC-IR300A125VDC-10-PCS-PK/252560387390?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649)
I noticed the bearings in one of the fans was noisy so I replaced both fans and put metal grates on them to protect the fans. I used these.
DC 12V 2-Pin 60x60x10mm PC Computer CPU System Sleeve-Bearing Cooling Fan... (https://www.ebay.com/itm/DC-12V-2-Pin-60x60x10mm-PC-Computer-CPU-System-Sleeve-Bearing-Cooling-Fan-6010/142755801727?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649)
2 X Silver Metal 60mm Chrome Fan Grill Finger Guard Protector for PC... (https://www.ebay.com/itm/2-X-Silver-Metal-60mm-Chrome-Fan-Grill-Finger-Guard-Protector-for-PC-Computer-HW/222116376542?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649)
They are working great now.
Mark
They are out of stock. Maybe later or maybe I'll end up chaining some muffins. John, do you recall where you got yours last year? Anyone else? Thanks.
jor
They have this one in stock. Don't know what the difference is.
https://rvcoolingunit.com/Norcold-Evaporator-Fan-Greater-inside-Cooling-LED-Deluxe-wGrill-and-Light-P5205533.aspx
Mark
DOMETIC NORCOLD REFRIGERATOR FAN FOR RV, BOAT 12V | eBay (https://www.ebay.ca/itm/DOMETIC-NORCOLD-REFRIGERATOR-FAN-FOR-RV-BOAT-12V-/200831657441)
Refrigerator Fans Modification (http://beamalarm.com/Documents/Modifications/refrigerator-fans-modification%20.html)
Fans & Blowers | Mouser (https://www.mouser.com/Thermal-Management/Fans-Blowers/_/N-axg88)
Jor,
Here you go.
Dometic Refrigerator Deluxe Fan LED accent light & Grill INCREASES cooling |... (https://m.ebay.com/itm/Dometic-Refrigerator-Deluxe-Fan-LED-accent-light-Grill-INCREASES-cooling-/391282772544)
Jor,
This is the same exact fan, a few dollars more. It looks like it is available. Different vendor.
John M.
https://rvcoolingunit.com/Dometic-Evaporator-Fan-Greater-inside-Cooling-LED-Deluxe-wGrill-and-Light-P5444060.aspx
Here is a 15" unit with 3 fans and LED's. Also in stock.
John M
15" Triple Fan Deluxe RV Refrigerator Evaporator Fan w/ LED light & Grill RV... (http://www.htuhshop.top/appliances-heating-ac-ventilation-c-3_114/15quot-triple-fan-deluxe-rv-refrigerator-evaporator-fan-w-led-light-amp-grill-rv-cooling-unit-warehouse-p-17865.html)
DOMETIC NORCOLD REFRIGERATOR FAN FOR RV 12 VOLT | eBay (https://www.ebay.com/itm/DOMETIC-NORCOLD-REFRIGERATOR-FAN-FOR-RV-12-VOLT-/250905640959?nma=true&orig_cvip=true)
Been using this for the past few years:
Fridge-Fix » Smart RV Products (https://smartrvproducts.com/works/)
It seems to blow the air evenly down on the coils.
Bob
2000 U270
Jor, we have been using 1set of fans for 4 years with no frost buildup.
Great to get all these replies. Tom, what fan set are you using?
jor
I see rv smart products made a unit to fit my side by side. I talked to him about this 5 years ago but never finished up.
Hopefully my 7832 is the same as the 7732 unit he shows?
Ordered one
Jor, We only use one unit in our fridge and it works great. We use the one in reply #11.
John M.
My fan installation. I pick up the power from the fridge light. I always wondered if 2 fan units would have been better for air circulation
John M.
Ended up buying two of the ones JohnM recommended. Reply #19.
jor
I ended up going with the fans from RV Cooling Unit Warehouse (RV Cooling Unit Warehouse (http://rvcoolingunit.com/)). These fans look to be of good quality. The old ones I had did not prevent the fins from frosting over. I'm hoping these will do a better job. From the other responses to this thread, I'm thinking they will do the job. Here's a few photos. The first two compare the old fan with the new. EF2swGLED Norcold Evaporator Fan Greater inside Cooling LED Deluxe w/Grill and Light 2 $57.90
jor
When I had MOT replace the refrigerator with a Norcold, I asked if they would wire the fan inside to move air. I should have done it myself as the fan works great when the refrigerator door is open. So whenever, I decide to fix it; it is the time when using the refrigerator is needed. So it is on the to do list when it becomes necessary to defrost. Shame on me for assuming it would be done right.
Confused... fans come on when door is open? My are on all the time..
Would like to know what purpose the fans on top of the condenser are, and are they used only at certain times?
I am sure fans can be wired to both come on when door is opened and also to stay on full time.. Assumption is full time would help cool with mixing the air and also keeping the fins from building up..Part time air movement wouldnt do much when the door is opened unless it was on for a few after the door was shut..Circulates the hot air with a more even cooling throughout
They
should be on all the time, with an on/off switch. Used to keep ice buildup off the fins. I use one that cost 7 bucks and it works great.
I hung a muffin fan on the front of the fins using a long ty-wrap and wired it to the light supply. It runs continuously. Before the fins were constantly covered with a thick layer of frosty ice. Now they stay clean and the fridge temperature stays constant. It's in a covered building at 96º and is 33º inside running on electric. Easy upgrade to fridge.
Mike,
Those fans boost air flow over the condenser and therefore help with cooling.
Particularly helpful when cooling in marginal: High ambient temperatures, sun shining on that side, someone going into the refrigerator frequently, etc.
Thanks, Brett. That sentence describes us perfectly, especially the last line; I DO like my Pacifico cold! ^.^d
The condensor fan(s) should come on and stay on once the thermal switch turns them on, which is shortly after the fridge is powered up and running. I have on/off switches so I can run one or both of mine. I normally only run one and turn the second one on when it's extremely hot.
Since all condenser fans were installed after leaving the factory, there are likely a number of ways they could be wired.
I know on Mike's U240 they are on a switch above the sink-- no thermo switch. Most KISS theory I would do.
If one gets the 12v fan power source from switched side of door light switch, power is turned off when door is closed. Not a good place for power.
Door switch has a constant 12v on the 'other' side of door light switch, which should be used to power fans.
Always consider several inexpensive flat 'muffin' computer fans, with several (many) across the fins, blowing on to the fins. Fans can be held on place with office binder clips. Use thin cable ties to keep fans together and to binder clip.
My fan does not blow directly on the fins. Since cold air sinks and hot air rises, I attached the fan to the underside of the top wire shelf and it draws the cold air up. Fins never ice.