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4.2 TROUBLESHOOTING GUIDE- SUPERVISOR CONTROLLER (CONTINUED)
MESSAGE
P1 Sump Pressure High
(CONTINUED)
P1 Sump Pressure Low
T1 Interstage HIgh, T2
Discharge High, T3 Oil
Temp HIgh, T4 Intercool
High, T5 Discharge
High, T1 Discharge
High, T2 Dry Side High,
T3 Oil Temp High, T4
Interstage High
Power Interruption
VSD Emergency Stop
VSD Com Fault
VSD Param Lim Fault
VSD Drive Fault__
MODEL
ENABLE
ALWAYS
FLOODED
ALWAYS
ALL
ALWAYS
FLOODED
ALWAYS
FLOODED
ALWAYS
FLOODED
ALWAYS
ALL
ALWAYS
FLOODED
ALWAYS
FLOODED
Aircooled
ALL
Watercooled
ALL
Watercooled
ALL
Watercooled
ALL
ALWAYS
ALL
ALWAYS
ALL
VSD
ALL
VSD
ALL
VSD
ALL
VSD
ALL
TROUBLESHOOTING
PROBABLE CAUSE
Sump Pressure High (Poppet,
Sullicon, Spiral or Blowdown, or
Pneumatic Valve Failed) (cont.)
Sump Pressure Low
High Temp. Fault
Motor Starter(s) Not Working
No Contatct to Input D8
Intermittent Control Power
E-Stop Button Active
Communication Error Detected
by Drive
Communication Error at Power-
up or Setup
Incorrect Factory or VSD Setup
Fault Detected by Drive
Section 4
REMEDY
Solenoid valves, check operation
and wiring.
Pressure regulator, check adjust-
ment and operation.
Check minimum pressure check
valve (not applicable to Oil Free
compressors).
Check pressure sensor, wiring and
tubing.
Machine may have failed to start.
Ambient above 105°F (41°C),
improve local ventilation.
Fluid level low, replenish to proper
level.
Thermal valve, check operation.
Cooler fins dirty, clean fins and fan.
Low water flow, check for valve
closed, pump off or broken pipe.
High water temperature, increase
flow or lower water temperature.
Cooler plugged, clean tubes and
shell, if plugging persists, use clean-
er water.
Sensor failure, check sensor and
wiring.
Check starter controls and wiring.
Check wiring to input.
Check line voltage and connections.
Release button.
Check for intermittent control wiring
to drive.
Check control wiring to drive.
Check setup menus and drive rat-
ing.
See Section 6.
15
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