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!!WARNING!!
FIRE, EXPLOSION OR SHOCK HAZARD MAY CAUSE
PROPERTY DAMAGE, SEVERE INJURY OR DEATH.
DONOT ATTEMPT TOMODIFY THE PHYSICAL OR ELECTRICAL
CHARACTERISTICSOF THIS BOILER INANY WAY.
IMPORTANT
1. IN A RESET FROM LOCKOUT CONDITION, ALL ELECTRICAL METER READINGS AT THE GAS CONTROL VALVE
(24 VAC) MUST BE TAKEN WITHIN THE TRIAL FOR IGNITION PERIOD.
2. IF ANY COMPONENT DOES NOT FUNCTION PROPERLY, MAKE SURE IT IS CORRECTLY INSTALLED AND
WIRED BEFORE REPLACING IT.
3. STATIC ELECTR!CITY DISCHARGE CAN DAMAGE THE INTEGRATED BOILER CONTROL (IBC). TOUCH
METAL SURFACE TO DISCHARGE STATIC ELECTRICITY BEFORE TOUCHING IBC.
4. THE IBC CANNOT BE REPAIRED. IF IT MALFUNCTIONS IT MUST BE REPLACED.
5. ONLY TRAINED, EXPERIENCED SERVICE TECHNICIANS SHOULD SERVICE THE IBC SYSTEMS. FOLLOWING
TROUBLESHOOTING, CHECK OUT THE SYSTEM FOLLOWING THE SEQUENCE OF OPERATION SECTION OF
THIS CHAPTER FOR A NORMAL LIGHT OFF SEQUENCE.
6. ALL CONTROLS ARE FACTORY TESTED AT LEAST ONCE IN THE ASSEMBLY PROCESS AND A DEFECTIVE
CONTROL IS GENERALLY THE LEAST LIKELY CAUSE. 1F YOU SUSPECT YOU HAVE A DEFECTIVE CONTROL,
DOUBLE CHECK YOUR PATH THROUGH THE TROUBLESHOOTING CHART BEFORE YOU REPLACE IT.
7. IT IS ALSO IMPORTANT TO REMEMBER THAT THE LIKELIHOOD OF COMING ACROSS TWO IDENTICAL
DEFECTIVE CONTROLS IN A ROW IS ALMOST NIL. IF IT SEEMS TO BE HAPPENING, CHANCES ARE THAT
EITHER THERE IS NOTHING WRONG WITH THE CONTORL OR IT IS BEING DAMAGED BY SOME OTHER
PROBLEM (A SHORT BURNING OUT A TRANSFORMER, FOR EXAMPLE).
2.
3.
INITIAL SERVICE CHECKS
BEFORE TROUBLESHOOTING:
A. MAKE SURE THAT CIRCUIT BREAKER IS ON OR FUSE IS OK AT ELECTRICAL PANEL.
B. MAKE SURE THAT SERVICE SWITCH IS ON.
C. MAKE SURE THAT GAS IS ON AT THE GAS METER, AT ALL APPROPRIATE MANUAL SHUTOFF VALVES
AND AT THE GAS CONTROL VALVE.
D. MAKE SURE THAT THE THERMOSTAT IS CALLING FOR HEAT.
E. CHECK THAT WIRE CONNECTORS AT THE INTEGRATED BOILER CONTROL AND AT THE ORIGINATING
CONTROL ARE SECURELY PLUGGED IN OR CONNECTED.
F. CHECK THAT HOSES ARE SECURELY CONNECTED AND ARE NOT PLUGGED IN OR DAMAGED.
TROUBLESHOOTING TOOLS:
A. VOLTMETER TO CHECK 120 VAC AND 24 VAC
B. CONTINUITY TESTER.
C. INCLINED MANOMETER OR PRESSURE GAUGE WITH 0-2.0" RANGE (0.01" SCALE) FOR MEASURING
SUCTION PRESSURES AT PRESSURE SWITCH.
D. U-TUBE MANOMETER OR DIFFERENTIAL PRESSURE GAUGE WITH 0-14" RANGE (0.1" SCALE) FOR
MEASURING INLET AND MANIFOLD GAS PRESSURES.
WHAT IS SYSTEM STATUS?
A. CONSULT THE CHART ON THE FOLLOWING PAGE.
B. FIGURE 16 ON PAGE 34 SHOWS THE LOCATION ON THE BOILER OF THE DIAGNOSTIC INDICATOR
LAMPS.
TROUBLE SHOOTING
50
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