Page 7-24 Troubleshooting
Revised 10/14
ITW Dynatec
D SERIES V6 DCL ASU Manuals
Problem Possible Cause
Hose/ Head (No.)* Not 1. Disconnection between
Heating hose and ASU.
(Sensor Circuit Open)
2. Hose sensor harness un-
plugged from Power or
AUX Power Module.
3. Hose/ Head sensor circuit
inoperative.
Hose/ Head (No.)* 1. Debris at connection
Not Heating between hose/ head and
(Sensor Circuit Shorted) ASU.
2. Debris at connection
between hose/ head
harness and Power or AUX
Power Module.
3. Hose/ Head sensor circuit
inoperative.
* Check each Hose/Head circuit on the system.
Solution
1. Visually examine connector for proper
contact and seating. If pins or housings
are damaged, repair or replace hose or
hose harness (in ASU).
2. Verify that affected hose is properly
connected to Power or AUX Module.
Replace or repair damaged hose harness
as necessary.
3. Replace head sensor if resistance does
not comply with resistance table. Use hose
schematic to check hose sensor resistance
at ASU socket, repair or replace hose,
hose harness, Power or AUX Power Mod-
ule as appropriate.
1. Visually inspect hose plug and ASU
socket for cleanliness and proper contact
andseatingofpins.
2. Visually inspect that the affected hose
plug at Power or Aux Power Module is
clean and properly installed.
3.Using the hose schematic, check hose
sensor resistance at ASU socket. An ohm-
meter can also be used to isolate a pinched
wire in the hose harness. When cause is
isolated, repair or replace sensor, hose,
hose harness, Power or AUX Power
Module as appropriate.
Plug
Sensor
Heater
Sensor &
Heater
ASU Socket and
Hose/ head Plug
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