User Manual

14
Troubleshooting
The following table lists causes and corrective actions for possible faults shown on the HMI with the
Pollution Control Units. Review this list prior to consulting manufacturer.
Fault
Potential Cause
Corrective Action
Calibration Required Unit not calibrated upon start up Calibrate the PCU
Unit taking too long to calibrate Varying airflow at inlet of the PCU
Check for blocked PORT 8
(Atmospheric port)
Ftlr Clogged Filters in a module are clogged Replace filters in module showing
“100% Clog” with clean filters of
the same filter type
Access door in duct left open Close access door in duct
Ftlr Missing Filters in a module are missing Place filters back in Missing Filter
module and check for missing
filters in all other modules
Hood filters are clogged Clean filters in the hood
Blocked Inlet to the PCU Make sure nothing is blocking air
flow entering the PCU
PCU clogged Pressure drop across entire PCU
exceeds allowable limits
Replace filters in module showing
maximum percentage clog with
clean filters of same type
Access door in duct left open Close access door in duct
72hr Clog Filters in a module are clogged for
72 hours
Replace filters in module showing
“100% Clog” with clean filters of
the same filter type
Pressure drop across entire PCU
exceeds allowable limits for 72
hours
Replace filters in module showing
maximum percentage clog with
clean filters of same type
Access door in duct left open for
72 hours
Close access door in duct
Missing Door Missing Door in one of the
modules
Place door back in module having
missing door and check for
missing filters in each module
ATTENTION
!!
In order to prevent erroneous issuing of fault conditions, the monitoring system takes
several minutes to issue a fault.
FAULTS will not be detected if PCU is running outside Normal Hood operating
conditions.