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SECTION 4—TROUBLESHOOTING
Platinum™Series 20 Part No 1110538
LOW PRESSURE:
Internal Status Indicators:
RED: One Flash
GREEN: One Flash
Or
RED: One Flash
GREEN: Three Flashes
Control Panel Indicators:
RED: On
YELLOW: Off
GREEN: Off
Unit plugged in, power
switch on, continuous
audible alarm.
Compressor shut down
(Failure to cycle due to
low pressure).
Compressor inlet filter dirty or plugged. Replace compressor inlet filter. Refer to
Replacing the Compressor Inlet Filter
on
page 28.
Compressor:
a. Leaks at fittings or tubing
b. Leaking or defective relief valve.
c. Insufficient voltage at outlet.
d. Worn cup seals or gaskets.
a. Replace or repair.
b. Repair leak or replace.
c. DO NOT use extension cords. Use
another outlet.
d. Rebuild top end of compressor. Refer
to Rebuilding the Thomas Model
2650 and 2660 Compressor -
Platinum 5 and 10 Models on page 37
or Platinum XL Model - Rebuilding
the Gast Compressor on page 45.
Heat exchanger:
a. Leak at tubing or body chamber.
b. Inspect tubing and heat exchanger.
a. Replace or retighten.
b. Replace or retighten tubing. Replace
heat exchanger. Refer to Replacing
Heat Exchanger on page 61.
Regulator cracked or leaking. Replace regulator. Refer to Replacing
Regulator on page 58.
P.E. valve leaking. Replace P.E. Valve. Check voltage at P.E.
valve connector on 24 volt D.C. scale. The
P.E. Valve activates or energizes
approximately one second prior to the
activation of the 4 way valve with
approximately 24 volts. If voltage is in
excess of 24 volts consistently, replace the
P.C. board. Refer to Replacing P.C. Board
on page 66. If the P.C. board voltage acts
normally, replace the P.E. valve. Refer to
Replacing P.E. Valve
on page 53.
NOTE: Check for leaks starting at the
compressor output through all the
pneumatic connections. Major leaks will
cause system pressures to remain below
adequate shift (exhaust) pressures and will
cause compressor shutdown.
Defective Parts:
Internal Status Indicators:
RED: One Flash GREEN:
Five Flashes
Or
RED: Two Flashes
GREEN: Three Flashes
CONTROL PANEL
INDICATORS:
RED: On
YELLOW: Off
GREEN: Off
Unit plugged in, power
switch on, continuous
audible alarm.
Compressor shut down.
Defective main valve coil. a. Replace main valve.
b. Replace main valve coil.
Connector loose. Reattach connector.
Defective P.E. valve coil. (Resistance 80
ohm’s ± 10.)
Replace P.E. coil if shorted or open on
resistance check. Refer to Replacing P.E.
Valve on page 53.
Defective P.E. valve. Replace P.E. valve. Refer to Replacing P.E.
Valve on page 53.
Connector loose. Reattach connector.
Defective P.C. board. Replace P.C. board. Refer to Replacing P.C.
Board on page 66.
SYMPTOM PROBABLE CAUSE SOLUTION