Fridge fan install. (1 Viewer)

[bigtree]

Finished installing my fridge fan kit today when I wired up the digital temperature controller,set it to go on at 35c and off at 31. Hopefully it will come in handy when we head off for our 3 month Run To the Sun on Monday.
If you look closely you will see how cold it was up here today.

 

[Bart]

How is the temp controller working for you ?? any chance you could link where you bought it from

 

[LesW]

I bought one of these..
https://www.ebay.co.uk/itm/DC-12V-T...892871&hash=item282ff51ae6:g:X0gAAOSwRGdZcZxC

and two of these..

https://www.ebay.co.uk/itm/PC-Brush...K-K3F9-A1W4-/282710585494?hash=item41d2dd3096

^{_{Subscribers  do not see these advertisements}}

 

[bigtree]

How is the temp controller working for you ?? any chance you could link where you bought it from

Working well so far,got them on eBay. Look like the same as @Les from Suffolk has given a link to. I have had to up the ambient temperature and move the module away from the gas exhaust as it was getting cooked.

 

[Sandancers]

Presuming you are not putting the circuit board in a case, hope no-one ever get over excited with the hose pipe when washing it and squirts water up thro your vent.

 

[Robert Clark]

I bought one of these..
https://www.ebay.co.uk/itm/DC-12V-T...892871&hash=item282ff51ae6:g:X0gAAOSwRGdZcZxC

and two of these..

https://www.ebay.co.uk/itm/PC-Brush...K-K3F9-A1W4-/282710585494?hash=item41d2dd3096

Estimated delivery on the fan is upto 28th December
Hardly Amazon Prine

^{_{Subscribers  do not see these advertisements}}

 

[LesW]

Estimated delivery on the fan is upto 28th December
Hardly Amazon Prine

True... But not Amazon prices either..

 

[Robert Clark]

True... But not Amazon prices either..

I’d rather pay a pound or two more rather than wait until nearly next year for delivery

 

[DBK]

View attachment 182672 Finished installing my fridge fan kit today when I wired up the digital temperature controller,set it to go on at 35c and off at 31. Hopefully it will come in handy when we head off for our 3 month Run To the Sun on Monday.
If you look closely you will see how cold it was up here today.

It may just be the perspective but why didn't you fit the fans lower down in front of the fins?

^{_{Subscribers  do not see these advertisements}}

 

[Lenny HB]

It may just be the perspective but why didn't you fit the fans lower down in front of the fins?

Fairly standard to fit them behind the top grill, most of us just cable tie them to the grill.

Like mine.

 

[bigtree]

It may just be the perspective but why didn't you fit the fans lower down in front of the fins?

As @Lenny HB has said the standard location is just behind the top grille so I fabricated a bracket that placed them there. I didn't want to fix them to the grille.

 

[daveandsan]

Fairly standard to fit them behind the top grill, most of us just cable tie them to the grill.

Like mine.
View attachment 194923

Did mine exactly like that, easy peasy

^{_{Subscribers  do not see these advertisements}}

 

[Bart]

I take it the idea is to have the two fans pulling the hot air up through the TOP grille vent away from the back of the fridge ??

Also where is the best place to mount the temperature sensor for the two fans?

 

[Bart]

btw here is a Chinese seller for the thermostat board where the stock is held in the UK so faster delivery and cheaply priced.

 

[Figaro]

@Bart Thanks, just ordered

^{_{Subscribers  do not see these advertisements}}

 

[DBK]

I take it the idea is to have the two fans pulling the hot air up through the TOP grille vent away from the back of the fridge ??

Also where is the best place to mount the temperature sensor for the two fans?

That's the theory, warm air rises and all that. On our van, which is a PVC, the grills are in one of the back doors but they are some distance away from the back of the fridge. If I had fitted my fans to the top grill the cold air would come in the bottom, scoot straight up, missing the fins of the condenser more or less completely. So my fans are much closer to the condenser and the temperature sensor it about an inch or so above the fins.

 

[Falcon 269]

I have the same controller ready to fit in our moho but it didn't come with instructions. The Chinglish version on the ebay listings doesn't make it clear how to set the start/stop temps or explain the other parameters (P0 to P6) that come up when the Set button is pressed and held in for a few seconds.

Does any kind soul have a link to the info I need, please?

 

[Gorse Hill]

Presuming you are not putting the circuit board in a case, hope no-one ever get over excited with the hose pipe when washing it and squirts water up thro your vent.

Exactly my thoughts, PCB boards and moisture don’t mix well, for the cost (£3) I would place it in an small enclosure to protect it from the elements

^{_{Subscribers  do not see these advertisements}}

 

[Rob Turner]

I fitted my fans with screws and a piece of rubber in each corner to aid any vibration. Can hardly hear them when running. One of the best mods I’ve done so far if I’m honest and works a treat in the heat of Southern Europe

 

[gus-lopez]

I take it the idea is to have the two fans pulling the hot air up through the TOP grille vent away from the back of the fridge ??

Also where is the best place to mount the temperature sensor for the two fans?

just above the top fins really the best place

 

[Lenny HB]

I have the same controller ready to fit in our moho but it didn't come with instructions. The Chinglish version on the ebay listings doesn't make it clear how to set the start/stop temps or explain the other parameters (P0 to P6) that come up when the Set button is pressed and held in for a few seconds.

Does any kind soul have a link to the info I need, please?

here are the instructions to the one I used for my internal fan should be the same.

From Memory:-
P0: Should read Heat/cooling.
P1: It Hysterisis.
P2: Temperature setting.
P3: I don't think that is adjustable.
P4: Compensation for temp probe, no need to change.

Easier to play with and set up on your bench use a PP3 battery for power.

^{_{Subscribers  do not see these advertisements}}

 

[Falcon 269]

Thanks for that Lenny HB ... very helpful, much appreciated!

 

[Stewart J]

Been in Spain a couple of months now, two fan set up and same controller as previously shown. We have had some hot weather and my set up woks well with controller set to cut in at 37 degrees, differential 5 degs so cuts back out at 32 degs Experiment to find what suits best, set to low at 30 degrees it was constantly cycling on and off.

 

[Stewart J]

Presently on site at Haro in Spain it's rather a cool morning at 14.2 deg indicated temperature (sensor mounted above top evap fins)with fridge running on mains power is 29.4 deg, it's an eye opener just how hot is does get in the upper part of this space no wonder fridges struggle in warm weather.

^{_{Subscribers  do not see these advertisements}}

 

[Poutie57]

I copied Lenny's installation both on the exterior and interior fans the results have been brilliant with the fridge running a constant 4° . So a big to Lenny

 

[Lenny HB]

Presently on site at Haro in Spain it's rather a cool morning at 14.2 deg indicated temperature (sensor mounted above top evap fins)with fridge running on mains power is 29.4 deg, it's an eye opener just how hot is does get in the upper part of this space no wonder fridges struggle in warm weather.

I noticed in my DL the area behind the fridge runs hotter that it was in the Exsis. Same fridge, identical installation, only reason I can think of is the burner/jet assembly has been changed in a effort to make them work better. If so they didn't do very well did they.

I copied Lenny's installation both on the exterior and interior fans the results have been brilliant with the fridge running a constant 4° . So a big to Lenny

It's amazing the difference the internal fan makes to internal temperature spread and how much quicker the fridge gets back down to temp after opening the door. If does make the fridge work harder, on the last trip in September use of heating was about the same maybe less than other similar trips but we used more gas, used up one bottle (28Lt/14Kg) in 18 days normally lasts us 21/22 days.
We have to thank @Robert Clark for coming up with the internal fan mod.

 

[Robert Clark]

This recent thread on improving fridge efficiency may be useful to some

https://www.motorhomefun.co.uk/forum/threads/our-3-way-fridge-saga.160227/#post-2494505

^{_{Subscribers  do not see these advertisements}}