11.0 FAULT FINDING
IRN37–160K–OF & IRN50–200H–OF
http://air.irco.com
86
FAULT
CAUSE
REMEDY
Remote start failure
Remote start button is pressed
after machine is running or
remote start button remains
closed.
Check operation of buttons or operating procedures
Remote stop failure
Remote stop button remains
open and either start button is
pressed
Check operation of buttons or operating procedures
Sensor failure
Sensor is missing or faulty
Install, repair or replace faulty sensor
Compressor trips
indicating a high
compressor
temperature.
Insufficient cooling taking place
If machine is watercooled, check that the cooling
water is flowing. Check that there is no air in the
water cooling system. Check that the strainer is not
blocked.
Intellisys controller has
tripped the compressor
A fault has occurred
Repair fault / reset Intellisys controller
Invalid Calibration
Calibration done with pressure in
compressor.
Depressurise and recalibrate with pressure pipe to
sensor disconnected. If fault still exists, replace
pressure transducer.
Check motor rotation
This will occur if the Intellisys
reads a negative speed from the
VSD when starting.
Contact your local IR representative
VSD communication
fail re
Communication wiring faulty
Check and replace if required
failure
Drive faulty
Contact your local IR representative
Intellisys faulty
Contact your local IR representative
VSD initialisation fault
Communication wiring faulty
Check and replace if required
Drive faulty
Contact your local IR representative
Intellisys faulty
Contact your local IR representative
High I/C condensate
This will occur if COND LEVEL
INSTALLED is YES and the
High Condensate Level switch
remains on for 1 minute
Check operation of condensate removal system
High intercooler
pressure
Air blockage, Airend damage
Check piping, contact IR representative
High 2nd stage
pressure
3APT is greater than the rated
discharge pressure plus 15 psi /
1 bar
Too high of pressure drop between 2nd stage
discharge and package or remote pressure sensing,
check piping
