Doosan 10/215HA, Operation & Maintenance Manual

Page: 63 / 68

OPTIONS 61
9/235HA, 10/215HA
HIGH IQ FILTER RESTRICTION - TROUBLESHOOTING
Service Air
STANDARD OPERATION IQ SYSTEM OPERATION
Service Air
CONDITION EFFECT REMEDY
The TITAN controller has
received a message over the
J1939 CAN network from the IQ
TCU controller indicating the IQ
filters are starting to restrict air
flow.
Code 44 is an ALERT condition and
will not stop the compressor. Code
44 and the ALERT name will be
displayed on the ViewPort. 1. Replace IQ filters.
2. Check all harness connections between IQ TCU and PT100 /
PT101 differential pressure sensors. Repair harness as needed.
3. If steps 1 and 2 checkout OK, replace IQ TCU controller.
The TITAN controller has
received a message over the
J1939 CAN network from the IQ
TCU controller indicating the IQ
filters are restricting air flow past
a usable level.
Code 52 is a FAULT condition and
will stop the compressor. Code 52
and the FAULT name will be
displayed on the ViewPort. 1. Replace IQ filters.
2. Check all harness connections between IQ TCU and PT100 /
PT101 differential pressure sensors. Repair harness as needed.
3. If steps 1 and 2 checkout OK, replace IQ TCU controller.