Snap-On Recovery Machine Problems
Posted to HVAC Forum on 3/24/2014
14 Replies
Howdy all,
I recently purchased a used Snap-On EEAC316A Recovery
Machine. This machine does not feature a separate vacuum
pump; it uses a cubigel compressor to do both cycles. Upon
receiving the machine, I promptly changed the master filter.
I also changed the compressor oil. I then put a deep vacuum
on the 50lb recovery tank to pull out any moisture that was
in it from sitting. The previous owner had fabricated a line
connecting the outlet of the vacuum purge solenoid to the
outlet of the tank air purge solenoid. I couldn't get an
answer from the previous owner as to why the line was
installed. After following the hose routing diagram I
realized that the line did not belong on the machine and I
removed it. I then powered the machine up and prepared to
fill the onboard recovery tank with refrigerant. I began the
recovery process but the machine stalled after retrieving
only two and a half pounds from the virgin tank. I closed
the hand valves but it continued to hold around 30psi on the
low side. I also noticed that the compressor was EXTREMELY
hot. I shut the machine off and let it sit a while. I vented
the remaining refrigerant in the lines a few hours later and
tried a vacuum cycle. It will vacuum to 25 in hg but it is
definitely not recovering correctly. I verified this by
charging just the lines in the machine and attempting to
recover them. It will draw down from 75psi to around 15psi
on the low side and just sit at the recovery process. Also,
the compressor will get very hot. I verified operations of
all three solenoids; the tank purge solenoid, the vacuum
solenoid, and the oil solenoid (for the compressor oil, not
oil drain). I have scoured the entire internet and I can't
seem to locate a solution to this problem. All I can think
is that the compressor has been damaged from the incorrect
line installation from the first owner. Any help would be
appreciated. Thanks community.
Kellyn Karr Owner Karr Automotive LLC Cape Coral, Florida, USA
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