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TROUBLE SHOOTING
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 ELECTRICITY 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 IN THE ASSEMBLY PROCESS AND A DEFECTIVE
CONTROL IS GENERALLY THE LEAST LIKELY CAUSE. IF YOU SUSPECT YOU HAVE A DEFECTIVE
CONTROL, READ THROUGH THE TROUBLESHOOTING CHART BEFORE YOU REPLACE IT.
7. IT IS EXTREMELY UNLIKELY THAT THE TWO CONSECUTIVE CONTROLS ARE DEFECTIVE. 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 (AN ELECTRICAL SHORT
BURNING OUT A TRANSFORMER, FOR EXAMPLE).
INITIAL SERVICE CHECKS
1. 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.
2. 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.
3. WHAT IS SYSTEM STATUS?
A. CONSULT THE CHART ON THE FOLLOWING PAGE.
B. FIGURE 15 ON PAGE 29 SHOWS THE LOCATION ON THE BOILER OF THE DIAGNOSTIC
INDICATOR LAMPS.
FIRE, EXPLOSION OR SHOCK HAZARD MAY CAUSE
PROPERTY DAMAGE, SEVERE INJURY OR DEATH.
DO NOT ATTEMPT TO MODIFY THE PHYSICAL OR ELECTRICAL
CHARACTERISTICS OF THIS BOILER IN ANY WAY.
!!WARNING!!