Air Dryer Won't Power On - Puregas P550W Series User Manual

PUREGAS, LLC
WARNING!
Extreme care should be exercised to avoid contact with live
electrical circuits. Many procedures performed during
installation, operation, testing, and maintenance of this air Dryer
require the equipment to be running, creating a situation for
potential electrical shock. It is highly recommended that you
remove all jewelry before performing any procedures.
CAUTION!
Depressurizing the air Dryer may be necessary before performing
certain procedures. NEVER remove pressure sensing tubes from
the Control Board without depressurizing the air Dryer first, or
damage to the Control Board will occur.
CAUTION!
Do not test the Humidity Sensor with an ohm meter or apply
any DC voltage. This will render the Humidity Sensor defective.
IMPORTANT!
Performing procedures not described in this User's Guide or
installing components not supplied by PUREGAS is NOT
RECOMMENDED AND MAY VOID THE WARRANTY.

13.3 Air Dryer Won't Power ON

Possible Cause
POWER Switch in
OFF position
No incoming voltage to
air Dryer
P550W Series Air Dryers User's Guide
Check
Verify POWER switch
is in the ON position
(section 8.4 )
Measure incoming
voltage (section 9.4 )
Page 85 of 99
Corrective Action
Turn POWER switch to
the ON position (section
8.4 )
Troubleshoot facility
power supply to air
Dryer
P011658 – Rev. P