Vendo 44 icing

Eric, thanks for your help on the capillary spefications.
I have had the vendo 44 running for a week.   It runs to cool to 36 Degrees, rest for 2-4 minutes then runs again.  I don't think there are any leaks that would cause it to warm, and it is well insulated.  Also the line freeze up as well as the coil.  The line freeze back to the condensor coils in the lower deck and back to the compressor.  Then it melts and runs water all over the kitchen floor. Too much freon or too little.   Is the thermostat located in the right place.  Should the inside fan run all the time?  
What do you think,    Dennis ,,  Memphis  '>

[johnieG]

HI Droaten, I'm sure Eric will have more info for you than I can provide, but yes the inside evaporator fan does run all the time to circulate the cold air over the sodas, over Icing is probably an overcharge of Freon, or possibly too short of a capillary tube length (but if Eric helped you select the length it's probably OK) which might allow too much liquid back into the evaporator. short cycling can be caused by a defective T-stat, or one thats got an improper cut in point. the tip of the Themostat capillary tube  generally shouldn't be in the direct path of the evap's fan (cold air stream) try positioning it alongside of the evap coils so the cold air doesn't blow right at it, ( so it senses the returning airs temperature) hope it helps!  I'm sur Eric has more ideas than me.. post 'em so we all can learn :'>

[globalcompressors]

Thanks for the faith...I think. If I screw up, don't smoke me too bad! As Jonnie was saying, the the evaporator fan motor is supposed to run 24-7. A couple of other ideas. When you asked me for the proper cap tube size, did you tell them medium temp and what freon? I'm sure you did and that brings be to my next thought. Did you change the fan blade for the evaporator? If it is a different cfm, the air flow will be altered causing a freeze up of the coil and the return line to the compressor. Next, at 36 degrees the pressure should be around 12-15 psi on the low side. I noticed that the compressor cycles off for only 2-4 minutes. This is too often. Try putting a couple of gallons of water, in containers, inside the machine. This will help hold the temperature for longer periods of time between cycles. An empty machine will not hold temp as well as a machine full of product. This might give more time for the condensation to drain off the coils before freezing up again. Last, if the door seal is good, check the drain line. Make sure there is a "p" trap to prevent outside air getting into the box. That's about all I can help with without having the machine here in the shop. I really hope this helps out!!!! '>

Eric

Thanks Johnnie G and Eric.   You are most helpful and responsive.  I will try all the suggestions.  

DRoaten  '>