PUREGAS, LLC
P550W2 Series Air Dryers User’s Guide
Page 86 of 99
P012226 – Rev. F
13.4 Display Screen Not Functioning
Possible Cause
Check
Corrective Action
Dryer experienced a
power spike
Power the air Dryer
OFF
for 15+ seconds.
Power the air Dryer
ON
.
Ribbon cable
disconnected
Verify ribbon cable
from the decal is
connected at the display
board
Reconnect the ribbon
cable properly.
13.5 High Outlet Pressure Alarm
Possible Cause
Check
Corrective Action
Outlet Pressure set too
high
Verify Outlet Pressure
(
OUTP
) reading
(section 8.5.5.1 )
Adjust Outlet Pressure
Regulator (section 8.11 )
High Outlet Pressure
Alarm set point too low
Verify High Outlet
Pressure Alarm set point
(section 8.7.2 )
Raise High Outlet
Pressure Alarm set point
(section 8.7.2 )
13.6
Can’t Create a High Pressure Alarm
Possible Cause
Check
Corrective Action
Defective Outlet
Pressure Regulator
Verify that the Outlet
Pressure Regulator can
be adjusted
(section 8.11 )
Replace Outlet Pressure
Regulator if unable to
adjust pressure
(section 11.2 )
High Outlet Pressure
Alarm set point higher
than default setting
Verify High Outlet
Pressure Alarm set point
Adjust Outlet Pressure
Regulator so that Outlet
Pressure (
OUTP
)
reading climbs over
verified set point
(section 9.13 )
Defective Control Board Verify that the Outlet
Pressure (
OUTP
)
reading is higher than
the High Outlet Pressure
Alarm set point (above)
Replace Control Board
(section 11.1 ) if Outlet
Pressure (
OUTP
)
reading is over verified
High Outlet Pressure
Alarm set point for more
than 1 minute and fails
to create an alarm.
Summary of Contents for P550W2 Series
Page 2: ......