Vendo 23 compressor
joesquid:
I'm looking at purchasing a Vendo 23 E but am unsure about the state of the compressor. When I plug in the Vendo, I hear the compressor kick in but several seconds later it kicks out. After several more seconds it kicks back in again and just keeps repeating this cycle every 10-20 seconds or so. Nothing gets cold but the thermostst seem to be operational. When turned to off it will de-energize the compressor but at any other rheostat setting the compressor cycles on and of every several seconds. Can anyone tell me the problem? I'm enclosing a pic of the compressor unit installed in this 23. I couldn't get any make/model info off the data plate due to its placement and rust buildup.
Thanks
MoonDawg:
The on-off action is caused by the overload relay which is supposed to shut off if a problem is detected. The most common cause is to shut down a fully operational compressor, then turn it back on immediately. It needs to stay off at least 3-5 minutes for the high and low pressures to equalize, or the overload relay kicks in.
If that wasn't the problem, a refrigeration service should be able to correct the operation.
Maybe Eric could be more helpful. Glen
joesquid:
Glen,
Thanks for the info. I suspected it might have some sort of overload relay but am unfamiliar with these types of compressors (no evap or evap fan??) so wasn't sure if they incorporated overloads in these simple compressor designs. The problem is that the cycling happens immediately; as soon as you plug it in and turn the thermostat on, the cycling begins. Eric, if you read this, your expertise would be most appreciated!!
Jim:
Eric,
If you could post a photo of the compressor w/ related wiring areas open for viewing, that would be great... If not, I believe there was a previous photo showing this equipment in a previous post in this section...
For testing purposes, you'll need to locate and jump the actual over-load sensor located in one of the plastic/metal housings for wiring. Once you remove the thermal overload, you can see if the compressor is cooling properly. I wouldn't leave it this way in the event there is a problem.
Update: If the refrigeration system has been broken into/serviced, do not attempt this method as this could cause damage from air, low freon, low oil or just contaminated!
joesquid:
Jim,
I tried to install a pic in my first postbut couldn't get it to post, not sure what the problem was. In any case I don't have any closeups of the wiring but i'll try to get some Thursday and try posting a pic again.
thanks again for all the help!
Eric
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