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TROUBLESHOOTING TIPS
SYMPTOM
1. LOW OUTPUT
PROBABLE CAUSE
LOOSE TANK CAP
NO ORIFICE IN CAP
CORRECTIVE ACTION
TIGHTEN CAP
INSTALL PROPER ORIFICE
2. NO SPRAY OUTPUT
CAP NOT ON TANK
FORMULATION TANK EMPTY
MACHINE IN AUTO FLUSH
MODE
FLUID FLOW PATH PLUGGED
INSTALL CAP
ADD FORMULATION
TURN MACHINE “OFF” THEN
BACK “ON” TO RESET
REMOVE TUBING AND CHECK
FOR BLOCKAGE
CHECK 3-WAY VALVE
PORTS<BUTTON ON TOP OF
VALVE MANUALLY OPENS
AND CLOSES FLUSH PORT.
3. ERRATIC SPRAY
AIR IN FLUID LINE
TIGHTEN ALL FLUID TUBE
FITTINGS, CHECK TUBING
FOR CUTS
4. BLOWER OR FAN DOES
NOT RUN AT STEADY
SPEED, 3-WAY VALVE
CHATTERS
MACHINE IS WIRED TO AN
INADEQUATE POWER SUPPLY
CHECK VOLTAGE AT PLUG
SHOULD BE 110-120V FOR
115V AC MODLES, OR 208-
245V FOR 240V AC.
CHECK FOR PROPER
EXTENSION CORD RATING
5. FAN MOTOR DOES NOT
OPERATE
DEFECTIVE FAN ON/OFF
SWITCH
DEFECTIVE MOTOR
REPLACE SWITCH
REPLACE MOTOR
6. BLOWER DOES NOT
OPERATE
WORN BRUSHES
REPLACE BRUSHES BY
REMOVING ITEM 2 FIGURE 6,
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CLEAN BLOWER AIR INTAKE
FILTER
7. AUTO FLUSH DOES NOT
ENGAGE WHEN
FORMULATION TANK
EMPTIES
DIRTY FLOW SENSOR
AUTO FLUSH MODULE
REMOVE FLOW SENSOR
SCREWS AND CLEAN
REPLACE MODULE
Summary of Contents for NIGHTSTAR 2985
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