E-3
TROUBLESHOOTING
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. Wrong DP reading reported by
sensor.
2. Incorrect duct air velocity.
1. The Differential Pressure sensor PD1 is read by PLC1, after
confirming solid electrical and tubing connections you can tap into
the readings with a "T" fitting with a 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.
2. Verify the fan air flow is not too low. Measure and adjust as
necessary.
The air
fl
ow is diminished.
1. Filter may be clogged.
1. Replace filter if necessary.
2. 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.
3. 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.
Particulate is emitting from the
collection drum.
1. Collection drum is full.
2. Possible bad seal and clamp on
the collection drum.
1. Empty the collection drum.
2. Calibrate or re-zero the duct pressure sensor, if the output is still
bad change the duct pressure sensor.
3. 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 grille 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.
PRISM
®
CIRCULATOR 4000
®
