Puregas P550W Series User Manual page 59

PUREGAS, LLC
With the Compressor NOT running:
9.3.5 Use a Voltmeter to measure
across the board terminals
were wires #5 and #6 are
connected.
The voltage should measure
0 VAC
(10%)
9.3.6 Replace the clear plastic
terminal block cover.
9.3.7 Close Panel.
If any of the voltage measurements are different than indicated above, the Control
Board is defective and should be replaced. See sections 11.1 for part detail and
11.5 for ordering information.
.
Page 59 of 99
P550W Series Air Dryers User's Guide
P011658 – Rev. P