TROUBLESHOOTING ENDS: REPEAT PROCEDURE UNTIL TROUBLE FREE OPERATION IS OBTAINED
TURN THERMOSTAT UP TO A HIGHER TEMPERATURE
ADD FUEL. MINIMUM LEVEL MUST BE ABOVE PICK UP TUBE
IN TANK
TURN BURNER SWITCH TO "ON" POSITION
DOES THE BURNER MOTOR
TURN?
WITH THE BURNER SWITCH ON AND THE THERMOSTAT TURNED UP, CHECK FOR 12VDC AT THE SMALL
TERMINAL ON THE BURNER (CUBE) RELAY WHEN THE TRIGGER IS PULLED. DO YOU GET VOLTAGE?
IS THERE FUEL IN THE TANK?
CHECK OUT UNIT! REPLACE ANY
DAMAGED HOSES, O-RINGS, TRIGGER
GUN
JUMP ACROSS THE TWO BIG RELAY
TERMINALS TOGETHER (CAUTION-
ONLY FOR 1-2 SECONDS). IF THE
BURNER MOTOR STARTS REPLACE
THE CUBE RELAY. IF NOT, REPLACE
THE BURNER MOTOR.
ADJUST FUEL PRESSURE TO SPEC. CHECK / REPLACE FUEL FILTER & REPAIR ANY AIR LEAKS. IF PROPER
PRESSURE CANNOT BE OBTAINED, REPLACE FUEL PUMP.
IS THE FUEL PRESSURE 140
PSI (+ - 10 PSI)?
LOOSEN COPPER FUEL LINE.
PULL TRIGGER GUN. DOES
FUEL DISCHARGE FROM LINE?
PULL TRIGGER GUN. IF NO FUEL DISCHARGES FROM LINE CHECK ELECTRICAL CONNECTION. CHECK
VOLTAGE AT SOLENOID VALVE. IF VOLTAGE READING IS 12VDC OR HIGHER REPLACE SOLENOID VALVE. IF NO
VOLTAGE CHECK FLOW / PRESSURE SWITCH FOR CONTINUITY.
(Also applicable to SC Series with 12V DC burners)
IS THE SPRAY TIP INSTALLED?
IS THE TRIGGER BEING
PULLED AND PRESSURIZED
WATER SPRAYING?
REPLACE THE
PRESSURE OR
FLOW SWITCH
DISCONNECT THE WIRES FROM ONE
SMALL TERMINAL ON THE BURNER
RELAY. DOES THE BURNER CONTINUE
TO FIRE?
INSTALL SPRAY TIP, BURNER REQUIRES 1000 PSI TO
OPERATE, IF UNIT IS EQUIPPED W/DUAL LANCE WAND,
CLOSE VALVE TO INCREASE PRESSURE, VERIFY PROPER
NOZZLE SIZE.
TRIGGER MUST BE PULLED TO OPERATE PRESSURE/FLOW
SWITCH
IS THE SWITCH ENGAGED TO
"ON" POSITION?
!! CAUTION!! TURN UNIT OFF
IMMEDIATELY AND REPAIR
IS THE THERMOSTAT TURNED
UP?
IS THERE FUEL VAPOR
COMING OUT OF THE
EXHAUST?
CHECK THE TRANSFORMER FOR SPARK.
!!CAUTION HIGH VOLTAGE!! CHECK ELECTRODE ADJUSTMENT AND
AIR BAND ADJUSTMENT (IMPORTANT!-SEE BURNER SPEC SHEET FOR SETTING ELECTRODE GAP). CHECK
ELECTRODES FOR CRACKS. CHECK LIGHT SENSING CAD CELL CONTROL CIRCUIT. REPLACE FUEL NOZZLE.
RESET THE BREAKER AND/OR REPLACE THE FUSE. LOOK FOR SHORT/OVERLOAD FAILURE AND REPAIR.
CHECK ENGINE OUTPUT VOLTAGE, MUST BE 12V DC OR HIGHER & LOAD TEST THE BATTERY. CHECK ENGINE
RPM: 3200 RPM FOR BELT DRIVE, 3400 RPM FOR DIRECT DRIVE. REPAIR CHARGING SYSTEM CIRCUIT AND/OR
REPLACE BATTERY IF NEEDED. LOW VOLTAGE WILL AFFECT BURNER PERFORMANCE.
IS THE BREAKER ON THE
PANEL TRIPPED OR IS THE
INLINE FUSE BLOWN?
CHECK HEAT SWITCH/THERMOSTAT FOR CONTINUITY
(THERMOSTAT MUST BE ADJUSTED TO HIGHEST SETTING
BEFORE TESTING-REPLACE IF NO CONTINUITY). CHECK
PRESSURE SWITCH FOR CONTINUITY WHEN MACHINE IS
RUNNING AND WITH TRIGGER PULLED - REPLACE IF NO
CONTINUITY.
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