FULTON VSRT Series Installation, Operation And Maintenance Manual page 84

TROUBLESHOOTING - 8
8.1 TROUBLESHOOTING
Problem
8. Boiler will not
maintain pressure
9. Boiler is Surging
(Widely fluctuating
water level in sight
glass)
10. Boiler rumbles and
pulsates
11. Boiler carrying over
water with the steam
Low fuel pressure.
VSRT-IOMM-2019-1
Cause
1. Gas Supply
2. Dirty flue
3. Pressure Control
4. Scale build-up in boiler
5. Steam traps blowing through.
6. Boiler size.
1. Steam traps blowing through.
2. Contamination in boiler.
3. Scale build-up or lime deposits.
4. Too much compound (water
treatment over dose).
5. High Alkalinity (high pH).
6. Load exceeds boiler capacity.
1. Poor Combustion
2. Draft
3. Too much main air.
1. Steam Traps.
2. Too much compound (water
treatment over dose) in the
system.
3. Contamination in boiler.
1. Gas pressure regulator
Remedy
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. If possible meter the flow rate.
Check flue for Carbon build-up or blockage.
Disconnect all power to the controller. Disconnect the
wires from the controller. Connect an ohmmeter between
the switch terminals. Lower the set point of the controller,
the switch should make raise the set point and re-check,
switch should break. If the controller operates improperly,
replace it.
Clean the pressure vessel – heavy build up may require an
acid clean – consult water treatment specialists.
Check steam traps, clean or replace as required.
Boiler may be under sized for the application. Consult
Fulton.
Check steam traps, clean or replace as required.
Empty boiler and feed tank.
Flush out and refill, if system operates but progressively
deteriorates, there is probably a leak somewhere in the
system.
Consult Fulton or call a water treatment specialist.
Dump contents of the return tank and flush the system.
Test the water.
Have a water treatment specialist test the water.
Check total system load against the output of the boiler.
Decrease the load required at any one time.
Check combustion readings.
Check draft complies with min/max parameters (Technical
Data Sheet Appendix A).
Adjust air/gas ratio.
Check steam traps, clean or replace as required.
Dump contents of the return tank and flush the system.
Test the water.
Empty boiler and feed tank. Flush out and refill, if system
operates but progressively deteriorates, there is probably a
leak somewhere in the system.
Check and replace.
Fulton Ltd
GAS BOILER
Page 76