PUREGAS, LLC
P6500W Air Dryer User’s Guide
Page 75 of 88
P010452 – Rev. Q
13.3 Air Dryer Won’t Power ON
Possible Cause
Check
Corrective Action
Circuit Breaker(s) in
OFF
position
Verify all three (3)
Circuit Breakers are in
ON
position
(section 8.3 )
Move all three (3)
Circuit Breakers to
ON
position (section 8.3 )
No incoming voltage to
air dryer
Measure incoming
voltage (section 9.4 )
Troubleshoot facility
power supply to air
dryer
13.4 Display Screen Not Functioning
Possible Cause
Check
Corrective Action
Ribbon cable unplugged Verify that the ribbon
cable running from the
Control Board to the
Display Screen is
properly connected at
both ends (see section
11.1 for Control Board
and Display Screen
locations)
Plug in ribbon cable to
Control Board and
Display Screen (see
section 11.1 for Control
Board and Display
Screen locations)
Defective Display Board
Garbled or no readout
with ribbon cable
properly connected.
Replace Display Board
(section 11.1 )
13.5 High Outlet Pressure Alarm
Possible Cause
Check
Corrective Action
Outlet Pressure set too
high
Verify Outlet Pressure
(
OUTP
) reading
(section 8.4.5.1 )
Adjust Outlet Pressure
Regulator (section 8.13 )
High Outlet Pressure
Alarm set point too low
Verify High Outlet
Pressure Alarm set point
(section 8.6.2 )
Raise High Outlet
Pressure Alarm set point
(section 8.6.2 )
Summary of Contents for P6500W
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