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Title: cooling problem Post by: Ryan on March 23, 2008, 04:08:22 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
Title: Re: cooling problem Post by: Pat Pixley on March 23, 2008, 04:30:11 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 Title: Re: cooling problem Post by: Ryan on March 23, 2008, 04:33:51 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?
Title: Re: cooling problem Post by: MoonDawg on March 23, 2008, 07:21:19 pm The answer is YES to all 3 questions you asked. 8)
Title: Re: cooling problem Post by: Ryan on March 23, 2008, 08:05:24 pm isn't that a daisy, how would one service and leak check it?
Title: Re: cooling problem Post by: johnieG on March 24, 2008, 11:31:58 am 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. Title: Re: cooling problem Post by: kellybus1 on March 25, 2008, 02:57:22 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 8)
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