Robinair 34134-2K 134a Recovery Unit - NY Tech Supply

Troubleshooting Tips
RECOVERY AND VACUUM OPERATION
Compressor does not start or stop prematurely
Problem:
Solution:
No power.
Check for power at plug or outlet.
Problem:
Solution:
**OVERLOAD** is displayed.
Move refrigerant from unit tank to approved refrigerant storage
tank. See RECHARGING A/C SYSTEM.
Problem:
Solution:
HIGH PRESSURE is displayed.
Be sure tank valves are open and hoses are correctly connected
to the unit tank.
Problem:
Solution:
**SCALE** is displayed.
The scale is damaged, disconnected, out of calibration or overloaded.
Runs but gauges won't indicate 13 in Hg (0.44 BAR)
Problem:
Solution:
Oil drain valve open.
Close the oil drain valve.
Problem:
Solution:
Leak in vehicle system.
Locate and repair all system leaks.
Problem:
Solution:
Manifold valves not open.
Open valves.
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