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Traveling with roof vents open?

dwrat
Explorer
Explorer
I found with my roof vent open while traveling my frig loses its cool.
If I keep everything closed up the frig does great.
I checked the frig seal and even lubed the seal.
Everything appears great and passes the dollar bill test all the way around the doors.
Anyone else have this problem?
Thanks
Dan
9 REPLIES 9

ajriding
Explorer II
Explorer II
I'd say dollar bill test failed you.
It might still leak air where you tested with the bill.
Or, could be another leak source between the back of fridge and inside the camper. Sometimes the space heater is open to the wall cavity and possibly the fridge cavity.
Be concerned, as stated, that fumes are coming in.

The roof vent is a bigger hole, otherwise both vents are at the same height and into the same wind so should pull air out the same, but the bigger one might win the tug-o-war.
If you pull air out of the camper vent, then maybe you do not have airflow up the chimney above the fridge - air comes in the side fridge vent and exits the inside roof vent. The air at the chimney might be stagnate.
Fridge needs air to move over the fins to be able to cool properly.

Consider putting in a 12 volt DC fan behind the fridge. Either at the roof to suck air out, or below the fins to directly blow air over the fins.
There are switches that will automatically turn on/off the fan when temps get high, so you never have to think about it. This could solve the problem and also help cool fridge on very hot days. Switches are about $12.

naturist
Nomad
Nomad
Years ago, heading westward across the Great Plains, ie, INTO a strong headwind, I noticed that my vent kept opening all by itself. I would close it, and next pit stop, it was open again. Evidently the vibration of traveling along with the high wind speed (wind speed plus speed of trailer) caused the vent to open. I used a bungy cord on the crank handle to keep it closed temporarily.

I then installed a MaxAir vent cover. It not only prevents rain entry when the vent is open, it also ended the vent opening itself when headed into a strong headwind.

I can see how the vacuum drawn on an RV with that vent open could interfere with the operation of the burner on a refer on propane.

stevenal
Nomad II
Nomad II
jplante4 wrote:
Propane fridge? Could be altering the airflow over the roof changing the flow through the chimney.


Perhaps installing or removing a vent cover might improve the situation.
'18 Bigfoot 1500 Torklifts and Fastguns
'17 F350 Powerstroke Supercab SRW LB 4X4

rhagfo
Explorer III
Explorer III
jplante4 wrote:
Propane fridge? Could be altering the airflow over the roof changing the flow through the chimney.

This would be my vote also, I would also check to make sure that the seal around the trim of fridge to cabinet is good as that could be drawing air away from the fridge chimney.
Russ & Paula the Beagle Belle.
2016 Ram Laramie 3500 Aisin DRW 4X4 Long bed.
2005 Copper Canyon 293 FWSLS, 32' GVWR 12,360#

"Visit and Enjoy Oregon State Parks"

jplante4
Explorer II
Explorer II
Propane fridge? Could be altering the airflow over the roof changing the flow through the chimney.
Jerry & Jeanne
1996 Safari Sahara 3530 - 'White Tiger'
CAT 3126/Allison 6 speed/Magnum Chassis
2014 Equinox AWD / Blue Ox

Kayteg1
Explorer II
Explorer II
The fridge compartment should be sealed from interior space.
Your situation brings concern not only about fridge getting flow of warm air, but also the possibility of CO from the burner entering the living quarters.
Check your seals.

dwrat
Explorer
Explorer
zcookiemonstar wrote:
Your vents being open could be causing the fridge to not vent properly. For hot air to vent out air has to come in some place and that is probably the vent from your fridge.


Great point, that would kill the cooling for sure.
Thanks

zcookiemonstar
Explorer
Explorer
Your vents being open could be causing the fridge to not vent properly. For hot air to vent out air has to come in some place and that is probably the vent from your fridge.

IB853347201
Nomad
Nomad
Very odd. Never had that problem...
2010 Suncruiser