Troubleshooting – Robinair 178012K Recovery, Recycling, Recharging Unit User Manual

Page 42

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

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