Hydro Tek CP series - Burner Troubleshooting Guide

BURNER TROUBLESHOOTING
SC / SCU Series - 120V AC
BURNER DOES
“NOT” COME ON
BURNER DOES
“NOT” TURN OFF
IS THERE FUEL IN THE TANK?
ADD FUEL
!! CAUTION!! TURN UNIT OFF
IMMEDIATELY AND REPAIR.
NO
YES
IS THE SPRAY TIP INSTALLED?
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
YES
NO
IS THE TRIGGER BEING PULLED?
NO
YES
TRIGGER MUST BE PULLED TO OPERATE
PRESSURE/FLOW SWITCH
LIGHT ON THE BURNER SWITCH TURNS OFF
WHEN THE TIGGER IS RELEASED?
REPLACE FUEL
SOLENOID VALVE
YES
REPLACE PRESSURE
SWITCH OR FLOW
SWITCH
NO
IS THE BURNER SWITCH ON &
THE THERMOSTAT TURNED UP?
TURN SWITCH ON & TURN THERMOSTAT UP
NO
THOROUGHLY CHECK UNIT: REPLACE ANY
DAMAGED HOSES, O-RINGS, OR TRIGGER GUN
YES
IS THE THERMAL O/L ON THE
BURNER MOTOR OR THE
BREAKER TRIPPED?
YES
RESET THE OVERLOAD AND/OR BREAKER
NO
DO YOU HAVE 110-120VAC
OUTPUT FROM THE GENERATOR
WHILE PULLING THE TRIGGER?
CHECK BELT TENSION-ADJUST IF NEEDED. ADJUST ENGINE RPM TO RUN WITHIN SPEC-VOLTAGE OUTPUT
CHANGES WITH GENERATOR SPEED. CHECK CAPACITOR FOR 16MFD-ARC TERMINALS WITH SCREW
DRIVER BEFORE TESTING. IF ALL THESE TEST GOOD, REPLACE GENERATOR
NO
DOES THE LIGHT ON THE BURNER
SWITCH COME ON WHEN THE
TRIGGER IS PULLED?
YES
YES
TURN THE THERMOSTAT FULLY CLOCKWISE & CHECK FOR CONTINUITY-REPLACE IF NO CONTINUITY.
CHECK FOR CONTINUITY ON THE PRESSURE/FLOW SWITCH WHEN THE TRIGGER IS PULLED REPLACE IF
NO CONTINUITY
NO
IS THERE FUEL VAPOR COMING
OUT OF THE BURNER EXHAUST?
YES
UNPLUG THE FUEL SOLENOID & CHECK THE TRANSFORMER FOR SPARK. !! CAUTION: HIGH VOLTAGE!!
CHECK ELECTRODE ADJUSTMENT AND AIR BAND ADJUSTMENT (SEE BURNER SPEC SHEET). REPLACE
FUEL NOZZLE, REPLACE INSULATION IF IT IS SATURATED WITH FUEL
IS THE FUEL PRESSURE
100-140 PSI?
NO
NO
CRACK COPPER FUEL LINE.
DOES FUEL COME OUT WHEN
TRIGGER IS PULLED?
YES
ADJUST FUEL PRESSURE TO SPEC. CHECK/REPLACE FILTER & REPAIR ANY AIR LEAKS. IF PROPER
PRESSURE CANNOT BE OBTAINED, REPLACE FUEL PUMP
REPLACE FUEL SOLENOID VALVE
NO
TROUBLESHOOTING ENDS: REPEAT PROCEDURE UNTIL TROUBLE FREE OPERATION IS OBTAINED
TROUBLESHOOTING GUIDE 16