FULTON VSRT-60 - Page 83

TROUBLESHOOTING - 8
Fulton Ltd
8.1 TROUBLESHOOTING GAS BOILER
Problem
Cause
Remedy
6. Poor Combustion
1. Main Air Adjustment
Check air and gas servo motors and check CO2 and O2
combustion levels.
2. Draft
Check draft with a gauge. Draft should be -.05 to -.10 mbar
with the burner off, or -.10 to -.15 mbar when operating.
A barometric damper may need to be installed.
3. Dirty Flue
Check draft complies with min/max parameters
(Technical Data Sheet Appendix A).
4. Negative Room Pressure
Ensure there are no exhaust fans running in the boiler
room.
5. Dirty Fan
Check fan for obstructions, clean as required.
7. Burner Back Fires
1. Ignition Electrodes
Check for cracks in porcelain, if found replace
the electrode. Check electrodes for carbon build-
up. Clean as required.
Check settings, adjust if required.
2. UV Detector
Check the detector is located correctly and clean.
3. Draft
Check draft complies with min/max parameters (Technical
Data Sheet Appendix A).
4. Negative room pressure
Ensure no exhaust fans are running in the boiler room.
5. Air Settings
Check Air servo motor operation and setting.
6. Gas Supply
Check gas pressure coming into the gas train, if low
contact the gas supplier.
Check the setting on the gas valve regulator, adjust as
required.
7. Dirty flue
Check flue Carbon build up and or obstruction.
VSRT-IOMM-2019-1
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