Robinair 34100 Automatic A-C Charging Station - Manual (Page 15)

13 R-134a Smart Cart ® Automatic A/C Charging Station
Symptom Cause Cure
• Station unplugged • Plug station into power
source
• No power at wall outlet • Locate problem with outlet or
change outlets
• Vacuum pump unplugged • Plug pump into power source
• Vacuum time not entered • Program required vacuum
time
• Defective vacuum pump • Remove and replace pump
• Faulty components • Call factory
• Transfer stopped or • Start A/C system and pull
too slow rest of refrigerant into system
(Step 6 in “To Use Automatic
Vacuum/Charge Cycle”)
• Tank safety strap too tight • Loosen the safety strap
• Refrigerant supply empty • Replace the refrigerant tank
or call factory
• Refrigerant supply empty • Replace the refrigerant tank
• Discharge valve open • Close discharge valve
• Low side valve closed • Open low side valve
• Pump oil contaminated • Flush and change pump oil
• Hose gasket damaged • Replace gasket or hose
• Charging line loose • Check connections
• Manifold leaking • Check connections
• Pump’s Iso-valve closed • Open Iso-valve
• Overloaded or broken • Check tank weight, recali-
scale brate if necessary, or call
factory
Trouble-
Shooting
Tips
No power when
POWER switch is on —
no display showing
Vacuum pump does not
start
Audible tone sounds
and “CHECK REFRIG-
ERANT” message
displays during
refrigerant transfer
Refrigerant doesn’t flow
or “REFRIGERANT”
message doesn’t
display
Vacuum pump runs, but
low side gauge does not
register an appropriate
vacuum
ERR5