E-3
TROUBLESHOOTING
Observe all Safety Guidelines detailed throughout this manual
PRISM
®
DOWN DRAFT WITH MECHANIZED CLEANING-MS/A ONLY
Fan does not start running.
Downdraft table does not func-
tion.
1. No compressed air available
or Low pressure - less than 60
psi (4 BAR)
1. Connect/repair compressed air
supply.
2. *Automatic start/stop (move-
ment sensor or welding cable
sensor) not connected.
2. *Connect cable of automatic
start / stop (*See Figure A.11,
item A).
3. *Movement sensor is defective. 3. *Replace sensor.
4. *Welding cable sensor not
connected.
4. *Connect clamp of welding
cable sensor to ground cable
of welding machine.
Irregular filter cleaning. One of the
filter cartridges is not being
cleaned.
1. One of the membrane valves
defective.
1. Replace both membrane
valves.
Poor extraction capacity. No filter
cleaning.
1. Membrane valve(s) defective.
1. Replace both membrane
valves.
2. Button RESET ALARM/MANU-
AL CLEANING defective.
2. Replace button RESET
ALARM/MANUAL CLEANING.
POSSIBLE
CAUSE
RECOMMENDED
COURSE OF ACTION
PROBLEMS
(SYMPTOMS)
The alarm lamp will be continu-
ously on
Filter cleaning system does not
function.
1. No compressed air available.
1 Connect/repair compressed air
supply.
* Accessory item.
OFFLINE MANUAL CLEANING
button does not work. No filter
cleaning.
1. Button was not pushed/held
long enough.
1. Push/hold button for 5 sec-
onds.
The alarm lamp will flash 2
Seconds on - 2 seconds off
Filter cartridges polluted.
1. Pressure over the filter car-
tridges has reached 0.22 psi
(1500 Pa.).
1. Switch off the fan to initiate the
automatic offline filter cleaning
cycle
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
PRISM
®
DOWN DRAFT
& PRISM
®
DOWN DRAFT WITH MECHANIZED CLEANING