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Sounds like blocked discharge line or supply house gave you wrong voltage replacement? You have checked volts already I assume? Good luck with it!

I was wondering if there were any of those still around working! I too cut my teeth on those and the C models before them. Haven't come across one still working in many years!

Make sure the drain is clear and flowing properly, drain line heater (assuming this is a freezer) is installed and functioning. Have seen water left over in drain pan at the end of defrost get kicked...

Glad you got it solved! The first one we saw took us several trips over a couple of days to figure out also! I guarantee you'll never forget about it and if you ever see it again you'll go right to...

Maybe I'm using the wrong term to describe the part I'm referring to.... Refrigeration Research calls it a "subcooling heat exchanger". I've attached a picture... I hope it works...first time posting...

Does the system have a heat exchanger installed?

The more I think about this, the more convinced I am that you probably have a heat exchanger on that system and it is leaking internally, dumping...

Is there a heat exchanger mounted in the liquid/suction line? Have seen them leak internally and bleed liquid right into the suction line. Those were fun to diagnose!

Either it is plumbed to a hot water source or hot water is migrating over to the cold water side and getting to the machine.

Look for oil, look for oil, look for oil!!! This includes moist looking dirt or dust stuck to some part of the system. Start with a good flashlight and your eyes and brain, spending ample time...

Check all switches in the control circuit to the contactor coil. Usually when we run into this it is either short cycling as already stated, or a problem with a pressure switch where the switch...

Yea,thanks!.....I'm glad I made it out of that ordeal ok....I don't know what the concentration of ammonia was by ppm in the room that night, heck I was just a kid at the time! I just know that there...

When I was 18 I was working one night in a small equipment room on a Vogt P-24 ice machine charged with 800 lbs. of ammonia when there was a sudden release of it's entire charge in liquid form from...

I agree.....clean it first....I don't believe too much in the "dump in cleaner and run the auger a while" type of cleaning. Pull it apart and clean/inspect it. It's not too hard to do. Sure it...

Is the water distribution system clean? Make sure evey row of every evap. is getting water flow to make cubes.....Hoshizaki brings in "X" amount of water (enough for one batch of ice) at the...

I'm not sure if this will pertain to your problem, but years ago I dealt with a similar problem involving compressor oil loss on a Vogt P-24 ammonia ice maker that caused many sleepless nights and...

The Mycoms I am familiar with on Vogt ice machines use oil pressure to back the unloaders off. When the compressor is off, the unloaders have a spring that keeps them in the unloaded position holding...

Ditto that!

Yea, I'm with you on that....I'm not going to blow up on him over this....he's had a string of needless callbacks recently and needs a stern talking to...maybe if I handle it right he'll get his...

If I'm seeing right, it looks like the gasket blew out in between the discharge chamber and the suction chamber? I think I saw this once many years ago....couple of questions... where are you taking...

We determined yesterday that the drier was definantly at least partially restricted when my guy installed the new compressor. He certainly should've caught that! I'll have to do some more training...

Will do.....Thanks!

I also doubt they changed the oil. I don't personally know what would happen running 404 with mineral oil? Are cylinder and discharge temps high enough in this scenario to break down the mineral oil...

Excellent question! I didn't.....one of my techs did.... I would have changed it and he should have changed it....I'll have to thrash him later when I see him! For the record, the drier was...

I'm not sure if they changed the oil type or not yet... I just cut open the old compressor to have a look inside.... had plenty of oil,murky oil of course,upper portion of hermetic can was really...

What happens when someone uses R-404 on an R-22 compressor? We recently aquired a new customer with a small chain of local convenience stores. We were called out to one of their stores last week on a...