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Old 08-08-2014, 05:20 PM   #91
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Originally Posted by KirkB View Post
If the limiting factor in the fridge performance is the ability to dissipate heat from the condenser, especially in hot weather, then perhaps a design improvement might be to add a divider in the area behind the fridge so there are 2 distinct air columns, one to exhaust hot air from the burner and heating units, the other to absorb heat from the condenser.

I am also thinking that the performance of the larger 6.7 fridge could be worse than the 4.3, since there is more heat to dissipate. The air cavity is the same width and depth in both models, but taller for the 6.7.
Same thoughts here, the intent when I place exhaust fans at the roof vent will be to divide the airflow so as not to affect the burner flame and concentrate on the path across the external fins.
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Old 08-08-2014, 05:26 PM   #92
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What is WD40 good for? White lithium grease is a excellent lubricant. Graphite is best for locks. There are products for breaking rust. What does WD40 excel at, other than smelling bad and lingering?
Adhesive removal
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Old 08-08-2014, 06:05 PM   #93
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Adhesive removal
And water displacement I think that was the original purpose for WD 40
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Old 08-09-2014, 09:42 AM   #94
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Quote:
Originally Posted by KirkB View Post
If the limiting factor in the fridge performance is the ability to dissipate heat from the condenser, especially in hot weather, then perhaps a design improvement might be to add a divider in the area behind the fridge so there are 2 distinct air columns, one to exhaust hot air from the burner and heating units, the other to absorb heat from the condenser.

I am also thinking that the performance of the larger 6.7 fridge could be worse than the 4.3, since there is more heat to dissipate. The air cavity is the same width and depth in both models, but taller for the 6.7.
Somewhere I saw a photograph of a Dometic refrigerator designed for hotter climates that had an pipe over the burner. Looked like a chimney that piped the heat to the upper grill on the trailer.
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Old 08-09-2014, 06:55 PM   #95
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A few posts ago I described my idea of re-wiring the Fridge Fix fans in series so they would run slower and quieter and maybe have less cooling effect on the thermistor. I gathered everything up today and headed off to the storage place where we keep the Escape with the intention of doing just that. I succeeded in taking the fans, switch, and fuse holder out of the plastic housing but after seeing the way it's set up, I decided to save it for another day. They're very nicely installed with computer style wire looms and connectors, and I would have to have done a lot of cutting and wiring to make the change. I decided to at least try the fans before proceeding.

I've read two or three instances, at least, on the forum of the Fridge Fix fans having a detrimental effect on fridge performance, including one from Reace. Some suspect that the fans are blowing too much cooled air over the thermistor, which causes the fridge to back off. I wonder if anyone would be willing to try placing a cotton ball or similar between the fins above the thermistor to see if that helps. It's going to be a couple of weeks before I can reasonably try something like that. Just curious to see if there is an easy fix for this issue.
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Old 08-09-2014, 07:25 PM   #96
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I don't have my 21 yet, but what about covering half of each fan with paper to cut the net airflow down?
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Old 08-09-2014, 07:50 PM   #97
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I think it would be worth trying. It would be pretty easy to put a piece of masking tape across a few of the openings in the back of the fun unit.
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Old 08-09-2014, 08:00 PM   #98
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The way the fans are constructed, it would be better to put a piece of tape over some of the rear holes to cut down on the amount going over the fins without reducing the intake, any excess should come out back thru the fan motors
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Old 08-21-2014, 04:33 PM   #99
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I wonder if someone would like to do an experiment with their Fridge Fix fan. This is my next "to do" but I won't be able to try it for several days. Someone who has found the fans to be detrimental to fridge performance, how about putting masking tape across all the hole on the backside of the plastic housing, and then removing the plastic cap inserts on the ends? This should direct the air down the walls of the fridge, which will at least help mix things up, perhaps better than the typical accessory portable fans. If this helps in some way, I think it's worth keeping the fans. If not, I'm probably going to remove mine. Looking for an eager volunteer!
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Old 08-22-2014, 12:05 AM   #100
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So we are looking for a "fan fix for the fridge fix fan"!! Say that 10 time fast!
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