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Crathco 3312 frozen drink machine

jawsfree

Premium Member
Joined
Jun 26, 2018
Messages
5
Location
Charleston
Model Number
crathco 3312
Brand
LG
Age
6-10 years
Not sure if this is the best place to find an answer on this but I thought I would give it a shot.
I have a Crathco 3312 frozen drink machine and it was working fine and then it would not freeze. I thought that it might be low on freon, 404a, but when I hooked up the gauges I get a high pressure on the low side and a low pressure on the high side, yes they are hooked up correctly. Then today I turned it one and the compressor kicked in so I checked the gauges and the pressure was where it needed to be and it started cooling but never froze. The compressor sound bad, how can I tell if the compressor is bad?

thanks
J
 

Dan O.

Appliance Tech
Staff member
Joined
Oct 9, 2004
Messages
5,287
Location
Ontario, Canada
jawsfree said:
I get a high pressure on the low side and a low pressure on the high side, yes they are hooked up correctly.

If that is in fact true, the only way that could occur is with a restriction in the sealed system.


jawsfree said:
how can I tell if the compressor is bad?

A "bad compressor" could not account for those other stated results.


Dan O.
 

Dan O.

Appliance Tech
Staff member
Joined
Oct 9, 2004
Messages
5,287
Location
Ontario, Canada
Had it been servcoied previously? If so, I'd suggest complete evacuation, replacement of the filter, an extended period on a vacuum pump dryer and then recharging.

JMO

Dan O.
 
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