JGASUK-IOMM-2015-2
Fulton Ltd
Page 40
MAINTENANCE - 4
Problem
Cause
Remedy
Boiler will
not maintain
pressure
1. 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. If possible meter the flow rate.
2. Dirty Flue
Check flue for carbon build-up or blockage.
Clean the flue.
3. Pressure Control
Disconnect all power to the controller.
Disconnect the wires from the controller.
Place an OHM meter between the switch terminals.
Lower the set point of the controller, the switch
should make. Raise the set point and recheck,
the switch should break. If the controller operates
improperly, replace it.
4. Scale build-up in boiler
Clean the pressure vessel.
5. Refractory Bricks.
Check refractories to see if they are blocked with
soot or broken in pieces. Clean or replace as
necessary.
6. Steam traps blowing through.
Check steam traps, clean or replace as required.
7. Boiler size.
Boiler may be undersized.
8. Faulty Gas Valve.
Check gas flow rate.
Boiler is
Surging
(Widely
fluctuating water
level in sight
glass)
1. Steam traps blowing through.
Check steam traps, clean or replace as required.
2. Contamination in boiler.
Empty boiler and feed tank.
Flush out and refill, if system operates but
progressively deteriorates, there is probably a leak
somewhere in the system.
3. Scale buildup or lime deposits.
Consult Fulton or call a water treatment specialist.
4. Too much compound (water
treatment over dose).
Dump contents of the return tank and flush the
system. Test the water.
5. High Alkalinity (high pH).
Have a water treatment specialist test the water.
6. Load exceeds boiler capacity.
Check total system load against the output of the
boiler. Decrease the load required at any one time.
Boiler rumbles
and pulsates
1. Poor Combustion
Check combustion readings.
2. Draft.
Check draft with a gauge.
Draft should be -.05 to -.1 mbar with the burner off.
A barometric damper may need to be installed.
3. Too much main air.
Adjust main air gate.
Boiler carrying
over water with
the steam
1. Steam Traps.
Check steam traps, clean or replace as required.
2. Too much compound (water
treatment over dose) in the
system.
Dump contents of the return tank and flush the
system. system. Test the water.
3. Contamination in boiler.
Empty boiler and feed tank. Flush out and refill, if
system operates but progressively deteriorates,
there is probably a leak somewhere in the system.
4.12.1
TROUBLESHOOTING BOILER
Summary of Contents for J Series
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