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Author Topic: cooling problem  (Read 248 times)
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Ryan
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« on: March 23, 2008, 05:08:22 pm »
hey, so i'm looking for a little help with regards to a 1968 cornelius 50-0838. this isn't the compact one, but the upright bottle vending machine. all works when it is plugged in the vending, and all three blowers. it just won't get cold. i cleaned out all the fins and such, yet no go. any ideas? here is a pic of it as well
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Pat Pixley
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« Reply #1 on: March 23, 2008, 05:30:11 pm »
Hello Ryan and welcome to the site. Hate to say this but sound like it
lost it R-12 , now there are people here that  can you better
what to check for but if everything come on  that what it sound like to me.

  We have a great guy here Eric at Global compressor that maybe able
to help you out , he is in the  SMC Directory give him a call.

 Pat
« Last Edit: March 23, 2008, 09:31:54 pm by Pat Pixley » Logged
Friends don't let friends buy woodgrain.
Ryan
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« Reply #2 on: March 23, 2008, 05:33:51 pm »
do you know if these are sealed units? can you service them as is? any way to tell if there is a leak before putting in the r12?
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MoonDawg
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« Reply #3 on: March 23, 2008, 08:21:19 pm »
      The answer is YES to all 3 questions you asked.  Cool
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Glen
Ryan
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« Reply #4 on: March 23, 2008, 09:05:24 pm »
isn't that a daisy, how would one service and leak check it?
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johnieG
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« Reply #5 on: March 24, 2008, 12:31:58 pm »
Unless you are trained & have the right equipment, It's not a do it yourself kind of job,

first you need to see if you have a service valve on the system (low side /larger copper tubing coming out of the cold side / evaporator, next you'll need an R12 service gauge set & appropriate hoses, then you'll need a vacuum pump, replacement gas, (R12, Hotshot,Freeze12, etc.) an electronic type leak detector for small leaks & maybe some liquid bubble type leak detector for larger leaks, a refrigerant scale to measure a replacement charge, & a tank of dry nitrogen & a regulator to pressure test the system, a brazing torch,

see, easy as pie!

About the only think you could do if your system does have a service valve on the low side of the compressor tubing, then you could just run a quick pressure check with teh system running & you should get about 20-30 psi on the low side with R12.
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Yea, 220...221, whatever it takes.
kellybus1
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« Reply #6 on: March 25, 2008, 03:57:22 am »
Are you sure the compressor is runng? Try getting a amp meter and clamp it on one of the wires comming out of the compressor. If it's running you will see a amp draw. No amp meter, then put your hand on the compressor and feel for viberation. LOL Cool
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