Go to EBay and look at pictures of 1200 cooling units and then ones for smaller sizes. You will see very little difference in the size/amount of the coils. Now look at a Armish 1200 cooling unit... almost twice the the size in the lower section.
When you undersize the cooling unit it has to run longer/hotter and air movement fans are needed. Put it in a slide where you do not have thermal syphonIng of the air or there is too big of a gap at the back of the coils and you do not get enough air flow over the coils... poor cooling.
*Why does a NoCold 12xx have to have a thermal shutdown added to it? They could not even get this bandaid right as it is on at least revision E and it still shuts it down when nothing is wrong... especially if you get the black box moist. Fortunately D and E can be reset using a magnet.
