FULTON VMP-W 40 -150 HP Installation And Operation Manual page 44

MAINTENANCE
Problem
Poor Combustion
Burner Back Fires
4-14
Troubleshooting Oil Fired Boilers
Cause
Refractories
S.S. Ring
Oil Nozzle
Primary air adjustment
Secondary Air Adjustment
Oil Pump
Draft
Dirty Flue
Refractories
Ignition Electrodes
Primary Air Adjustment
Oil Valve
Draft
Loss of Prime
VMPW-IOM-2012-1001
Remedy
Check refractories to see if they are sooted,
cracked or broken in places. Clean or replace as
needed.
Check to be sure ring is present and ts tight
against the furnace wall.
Check for clogged nozzle; clean or replace.
Check air adjustment. Air may be blowing re
away from ame sensor.
Check main air adjustment to see if it is loose.
Adjust as needed and tighten plate in position.
Check CO2 and O2 levels.
Check for clogged strainer or lter. Remove and
clean. Check for slipping or broken coupling.
Tighten or replace. Check for frozen pump shaft.
Replace.
Check draft with a gauge. Draft should be -0.02 to
-0.04 inches of water column with burner o , or
-0.04 to -0.06 when operating. May need to install
barometric damper.
Check ue for carbon buildup or blockage by
using a stack thermometer placed within one
foot of the stack leaving the boiler area. If stack
temperature is in excess of 600 F while the boiler
is operating, the ues are dirty. Clean as necessary.
Check refractories to see if they are sooted or
broken in places. Clean or replace as needed.
Check electrodes for carbon buildup and clean as
necessary. Check for proper adjustment; readjust
if necessary. Check for cracks in porcelain; replace
if cracked.
Check air adjustment. Air may be blowing re
away from ame sensor.
Check for leaky oil valve and replace.
Check draft with a gauge. Draft should be -0.02 to
-0.04 inches of water column with burner o , or
-0.04 to -0.06 when operating. May need to install
barometric damper.
Check all lines for possible air leak in intake line
and tighten. Check for possible restricted intake
line. Replace.
SECTION 4
© The Fulton Companies 2012