Section 7
MAINTENANCE
46
TROUBLESHOOTING (continued)
SYMPTOM PROBABLE CAUSE REMEDY
COMPRESSOR SHUTS DOWN
WITH AIR DEMAND PRESENT
(cont’d.) HIGH TEMP T1 or T3 Message Open or shorted T1 or T2 sender; check for
Displayed (cont’d.) a short or open circuit to probe and
correct wiring.
Excessive pressure drop in supply and
return lines of remote air---cooled cooling
package. Consult paragraph 4.6 of this
manual.
Low Fluid Pressure
(LOW PRESSURE P3 display) Check fluid level.
Low Water Pressure
(FAN OL/LOW WATER display) Check the cooling fan motor or w ater
flow system.
COMPRES SOR WILL NOT BUILD
UP FULL DISCHARGE PRESSURE Air Demand is Too Great Check service lines for leaks or open
valves.
Dirty Air Filter Check f or filter maintenance message on
Supervisor panel and change or clean
element if required.
Pressure Regulator Out
of Adjustment Adjust regulator according to control
adjustment instructions in the Maintenance
Section.
Defective Pressure Regulator Check diaphragm and replace if necessary
(kit available).
Broken Sullicon Spring Replace.
LINE PRESSURE RISES ABOVE
UNLOAD P2 PRESSURE
SETTING ON THE
SUPERVISOR Leak in Control System Causing
Loss of Pressure Signals Check for leaks.
Defective Solenoid Valve Check that Sullicon Control lever is moved
to unload stop when Supervisor is in NO
LOAD mode. Repair or replace if
necessary (kit available).
Defective Blowdown Valve Check that sump pressure is exhausted to
the atmosphere when in the OFF LOAD
mode. Repair or replace if necessary
(kit available).
Ruptured Sullicon Control
Diaphragm Replace.
Plugged Control Line Filter Clean or repair if necessary.
EXCESSIVE FLUID
CONSUMPTION Clogged Return Line Strainer
or Orifice Clean strainer (screen and o---ring replace---
ment kit available).
Clean orifice.
Separator Element Damaged or
Not Functioning Properly Change separator.
Leak in the Lubrication System Check all pipes, connections and compo---
nents.
Excess Fluid Foaming Drain and change.
Fluid Level Too High Drain excess fluid.
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