Owner's manual

Troubleshooting

RECYCLING OPERATION

Compressor does not start or stops prematurely

Problem: Power cord is not plugged in or there is no power at plug

Solution: Check circuit for power

Problem: Tank valves are closed

Solution: Open both valves and be sure hoses are properly

connected to the tank

Problem: “CH-F” message on digital display

Solution: Remove and replace the filter-drier (see Replacing the Filter-Drier),

and be sure to pull a vacuum before continuing

Refrigerant does not flow

Problem: Refrigerant supply empty or low

Solution: Add refrigerant to the tank

Problem: Tank valves are closed

Solution: Open both valves and be sure hoses are properly

connected to the tank and the unit

RECHARGING OPERATION

No power when MAIN POWER switch is on — no display showing

Problem: Power cord is not plugged in or there is no power at plug

Solution: Check circuit for power

Problem: The “CHECK REFRIGERANT” message is displayed

Solution: There is less than 6 pounds of refrigerant in the tank; add refrigerant to

the tank

Audible tone sounds during refrigerant transfer

Problem: Transfer stopped or too slow

Solution: Close the high side valve, then start the A/C-R system and pull the

remaining refrigerant into the system

Problem: Refrigerant supply is low or empty

Solution: Add refrigerant to the tank or change tanks