E-3
TROUBLESHOOTING
PRISM® SUSPEND 4000
Observe all Safety Guidelines detailed throughout this manual
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Lincoln Authorized Service Facility for technical troubleshooting assistance before you proceed.
WWW.LINCOLNELECTRIC.COM/LOCATOR
Observe all Safety Guidelines detailed throughout this manual
PROBLEMS
(SYMPTOMS)
POSSIBLE
CAUSE
RECOMMENDED
COURSE OF ACTION
FUNCTION PROBLEMS
Filter replacement alarm does
not function.
1. Side inlet pre-filters clogged.
2. Wrong DP reading reported by
sensor.
3. Incorrect duct air velocity.
1. Clean or replace side inlet pre-filters
2. The Differential Pressure sensor PD1 is read by the PLC, after
confirming solid electrical and tubing connections you can tap into
the readings with a "T" fitting and hand held manometer to confirm
its readout matches the real DP. Calibrate or re-zero the sensor if
needed. Change it if it doesn't operate properly.
3. Verify the fan airflow is not too low. Measure and adjust as
necessary.
1. Side pre-filters may be clogged.
2. Four cartridge filters may be
clogged.
Particulate is emitting from the
collection drum.
1. Collection drum is full.
2. Possible bad seal and clamp on
the collection drum.
1. Clean or replace side intake pre-filters.
2. Replace four cartridge filters.
3. Make sure your duct pressure sensor PD2 is giving a proper
reading into the PLC. Fan speed is controlled via this input feeding
into a PID control loop.
4. If all recommended possible areas of mis-adjustment have been
checked and the problem persists, Contact your local Lincoln
Authorized Field Service Facility. 1-888-935-3878.
There is an abnormal amount
of weld fume in the work zone.
1. Check to make sure the machine
is powered on.
2. Check outlet grill airflow
directional control.
3. Verify fan speed on PLC screen.
4. Make sure your duct pressure
sensor PD2 is giving a proper
reading into the PLC. Fan speed is
controlled via this input feeding into
a PID control loop.
1. Calibrate or re-zero the duct pressure sensor, if the output is still
bad change the duct pressure sensor.
2. If all recommended possible areas of mis-adjustment have been
checked and the problem persists, Contact your local Lincoln
Authorized Field Service Facility. 1-888-935-3878.
1. Clean or replace side intake pre-filters.
2. Replace four cartridge filters.
3. Make sure your duct pressure sensor PD2 is giving a proper
reading into the PLC. Fan speed is controlled via this input feeding
into a PID control loop.
4. If all recommended possible areas of mis-adjustment have been
checked and the problem persists, Contact your local Lincoln
Authorized Field Service Facility. 1-888-935-3878.
