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Troubleshooting
44
333347F
T4D0
High Temp
Melter
Alarm
Melter continues to raise above the set-
point.
Check that RTD is seated in melter correctly.
Check that overtemperature switch is plugged in
and check switch resistance. The switch resis-
tance should be near 0 Below 400°F (204°C).
Check melter heaters’ resistance to ground.
Replace heater if a heater is shorted to ground.
Turn system on without dispensing. Verify tem-
perature is properly controlled to the setpoint. If
setpoint is not maintained, replace RTD. If heat
continues to rise past setpoint, replace MZLP.
T4D_
High Temp
Hose
Alarm
Hose continues to raise above the set-
point.
Turn on system without dispensing. Check if
hose can maintain setpoint temperature. If the
hoses’ RTD readings are unstable, replace hose.
If hose continually heats past setpoint, replace
the MZLP.
T4D_
High Temp Gun
Alarm
Applicator assembly continues to raise
above the setpoint.
Turn on system without dispensing. Check if
applicator can maintain setpoint temperature. If
the applicator’s RTD readings are unstable,
replace the applicator RTD.
Check the applicator heater’s resistance to
ground if the RTD readings are stable but the
applicator’s temperature continues to rise. If the
heater is shorted to ground, replace the applica-
tor’s heater. If heater is not shorted to ground,
replace MZLP.
T4MX
High Tempera-
ture, Trans-
former
Alarm
Thermistor reading greater than 212°F
(100°C).
Verify transformer fan is operating correctly and
free of obstructions.
Replace transformer.
T6D0
Sensor Error
Melter
Alarm
No reading from RTD.
Verify connector J5 on MZLP board is securely
connected.
Defective RTD. Replace melter RTD. See
Replace Band Heater Temperature Sensor
page 63.
T6D_
Sensor Error
Hose
Alarm
No reading from RTD.
Hose electrical connector not plugged into MZLP.
Defective RTD. Replace hose.
T6D_
Sensor Error
Gun
Alarm
No reading from RTD.
Hose electrical connector not plugged into MZLP
or applicator electrical connector not plugged into
heated hose.
Defective RTD. Replace applicator RTD.
T6MX
Thermistor Sen-
sor Error, Trans-
former
Alarm
No reading from transformer thermistor
sensor.
Verify that sensor wire is plugged into J7 on
AWB.
Replace transformer.
T8D_
No Temp Rise in
Gun (all zones)
Alarm
Temperature reading does not change. Check fuses F3 and F4 (channels 1, 3, 5) or F7
and F8 (channels 2, 4, 6) on MZLP that error
channel is connected to.
Defective heater rods in applicator manifold.
Replace applicator manifold.
NOTE:
Defective heaters rods in the applicator
manifold can also cause the no current error.
Heated hose electrical connector or wires are
defective. Check resistance of hose wiring. See
hose manual for proper resistance range.
Code
Description
Type
Cause
Solution
Содержание 24T918
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