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Tinstar's avatar
Tinstar
Explorer
Apr 12, 2017

Norcold 1210 cooling question

Can cooling the ventilation area behind my Norcold 1210 fridge too much cause it to not get cold enough inside the fridge?

I've got a large fan blowing in the lower vent on the outside of the m/h. It is forcing a lot of air in behind the fridge and out the top vent. It worked good yesterday and it stayed 35 to 36 degrees all day. I checked it tonight and it is up to 42 degrees. It is cool outside tonight and the fan I set up is not on a thermostat.
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  • Tinstar wrote:


    Here is a picture of the fan and cover. It's powered via 12 volts and is two speed. I cut a new cover and molded the fan to it with sealant. It pushes a lot of air through the cabinet. I would only use this while parked and if the fridge is not cooling properly. I use the factory cover while driving and other times.


    Now I understand what you have done. That is probably OVERKILL. IF the air rushes past the upper condenser too fast, then the air cannot remove the heat. The slower the air flows thru the condenser fins, the more time it has to absorb the hot temp and remove it. Same principle of a Engine cooling system. Some people think that if you remove the engine tstat, the engine will run cooler. NOT SO, It will run hotter. It runs hotter due to the hot water flows thru the Radiator too fast to have the water cooled adequately. The tstat acts as a regulator also. Try removing the complete door/fan and see what happens with a open door. Doug


  • Here is a picture of the fan and cover. It's powered via 12 volts and is two speed. I cut a new cover and molded the fan to it with sealant. It pushes a lot of air through the cabinet. I would only use this while parked and if the fridge is not cooling properly. I use the factory cover while driving and other times.
  • Tinstar wrote:
    The unit is not in a slide. I designed the fan to force the air through the cooling unit. I molded the fan into an extra fridge outside cover so it is actually forcing a LOT of air through there and out the top.

    I can't figure out was is wrong if that's not causing it. It has ran for 3 days with the temps holding at 35 and 36 degrees. All of a sudden last night the temperature went up to 42 degrees. The fridge had not been opened for 12 hours. The temp going up 6 degrees over about 5 or 6 hours doesn't seem right. I checked it this morning after turning the temp up to 9 and it has cooled back to 36 this morning.

    I assume the fridge is as level as possible.
    Unless in the driveway and near empty, we always run on the 9 setting. Also have a fan installed in the bottom and have it rigged for shore or genset power only. Usually turn it off as well when at home for long periods. I think it's fine for the most part and am a lot more happy with it, than when first purchased last year and thinking this NEVERCOLD was going to need replaced for a residential immediately. I really need to get inside for checking the built in fridge fans, but feel they must be OK.
    In fact, the biggest problem we're having right now, is water inside, so will have to check out the drip pan hose or whatever, once we get back home.
  • The unit is not in a slide. I designed the fan to force the air through the cooling unit. I molded the fan into an extra fridge outside cover so it is actually forcing a LOT of air through there and out the top. I made this fan on bottom because the 2 fans at the top are not working and I don't have time to pull the fridge to replace/repair before a trip this week. I know just blowing air in the bottom is not like drawing it through from the top and that is why I am forcing the air through the compartment. I'll post a picture here in a bit to show you what I built.

    I can't figure out was is wrong if that's not causing it. It has ran for 3 days with the temps holding at 35 and 36 degrees. All of a sudden last night the temperature went up to 42 degrees. The fridge had not been opened for 12 hours. The temp going up 6 degrees over about 5 or 6 hours doesn't seem right. I checked it this morning after turning the temp up to 9 and it has cooled back to 36 this morning.
  • NO, forcing MORE air from the bottom out the top will not cause lack of cooling in the refer. IF the unit is in a slide room then maybe, as too much air volume may cause a easy exit out the top side door vent. Doug
  • Forcing air IN can cause allot of turbulence and dead spots within the rear cavity, that's why it's always better to draw the air out. Are the rear fans working ?

    What temps are you in that you require such massive ventilation?