Stinger bacharach, Instruction Manual

Page: 19 / 25

19
Troubleshooting, Con’t.
PROBLEM CAUSE ACTION
Status LED still glows
red after high pressure
condition has been
cleared
High pressure switch was once
activated causing high pressure
circuit to latch ON
Turn unit OFF and then back ON.
Compressor starts but
cuts out within a few
minutes; pressure
indication on low
pressure gauge is low;
status LED is OFF
Inlet valve is in PURGE or CLOSED
position during recovery and low
pressure switch activates
Blocked intake hose
Rotate inlet valve to RECOVER.
Check and clear blockage.
AC power switch is ON,
but fan, compressor,
and status LED are all
OFF
Power cord not attached
No voltage at AC outlet
Circuit breaker has opened Attach power cord.
Verify voltage at job site.
Identify cause of breaker
activation, rectify and reset.
Status LED still glows
red after changing
recovery tanks
80% tank full switch has been
activated causing tank full circuit to
latch ON
Turn unit OFF and then back ON.
AC power switch is ON
but cooling fan not
running
Defective fan
Obstruction in fan blades Replace fan.
Remove obstruction.
Unit overheats Excessive suction pressure due to
high ambient temperature
Reduce inlet pressure below
80 psi by throttling the inlet valve.
Recovery process too
slow
Head pressure too high
System refrigerant iced up
Restriction in hoses or manifold
gauge set
Compressor seals worn
Reduce tank temperature or
change tanks.
Throttle gauge manifold valves
and discharge valves to reduce
pressure differential between LP
and HP gauges.
Interrupt recovery process and
allow ice to dissipate.
Check and clear restriction.
Rebuild compressor.