© Copyright by ATH-Heinl GmbH & Co. KG, 2014, All rights reserved. / Subject to misprints and technical changes / Version: 05/2014
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Troubleshooting
Error
Reason
Solution
The display is blank, the
device will not turn on
Power supply, power cable,
mains adapter, circuit board
Broken fuse
Broken LCD
Check power supply, Check power cable
connection, check mains adapter and circuit
board, replace if necessary.
Replace fuse
Replace display
Low vacuum level
Oil of vacuum pump is too low
Dirty pump oil emulsion
Clogged oil pump
Leak in the pump connection
Worn components
Correct oil level (median)
New oil (change oil)
Clean the oil pump inlet
Check oil pump connection
Replace oil pump
Vacuum pump delivers
fuel to the system
Excessive oil volume
Input pressure is too high
Correct oil level (median)
First perform recovery function
Recovery does not stop
Note:
In winter, an increased
recovery time is normal
Leak in the A/C vehicle or
equipment system
Compressor doesn´t work
Pressure sensor doesn´t work
Perform leak test! For leak test procedure
see manual
Check power connection of the circuit board
an of the mains adapter to the compressor, if
necessary replace compressor
Check the connection of the pressure sensor
to the board or replace pressure sensor