J OIL-E-08 2008
3.11 TROUBLESHOOTING - continued.
Problem Cause Remedy
Poor Combustion 1. Refractory Bricks Check the bricks are not plugged with soot or
broken into pieces. Clean and replace as
required.
2. StainlessSteelRing Checktoensuretheringispresentandts
securely against the furnace wall.
3. MainAirAdjustment Checkairadjustment.Openmainairuntilre
brushes the furnace wall.
4. Secondary Air Adjustment. Check main air adjustment to see if it has
moved. Adjust as necessary and tighten in
position. Check CO
2
and O
2
level.
5. Draft Check draft is neutral.
Consider installing a barometric damper if the
draft is too strong.
6. DirtyFlue CheckueforCarbonbuild-uporblockage.
Cleanuepassageswithbrush.
7. Negative Room Pressure Ensure no exhaust fans are running in the
boiler room.
8. Oil Nozzle Check for blocked nozzle, clean or replace as
necessary.
9. OilPump Checkforblockedstrainerorlter.Removeor
clean. Check for slipping or broken coupling.
Tighten or replace. Check for seized pump
shaft. Replace.
Burner back res 1. Refractory Bricks Check the bricks are not plugged with soot or
broken into pieces. Clean and replace as
required.
2. Ignition Electrodes Check electrodes for carbon build-up, clean if
required. Check settings adjust if required.
Check for cracks in porcelain, if found, replace.
3. UV Detector Check for dirt on scanner, clean as required.
Check for proper location of detector.
4. Draft Problem Check draft is neutral.
Consider installing a barometric damper if the
draft is too strong.
5. Negative Room Pressure Ensure no exhaust fans are running in the
boiler room.
6. PrimaryAirAdjustment Checkairadjustment.Airmaybeblowingre
awayfromamedetector.
7. Oil Valve(s) Check for leaking oil valve(s) and replace.
8. Loss of Oil Prime Check all lines for possible air leak in intake
line and tighten. Check for possible restricted
intke line. Replace.
9. LooseOilFittings Checkallttingsandtighten.
10. Blocked Oil Filter Check and clean or replace.
11. Blocked screen in Oil Pump Check and clean or replace.
12.BlockedFlue Checkueisnotblocked,cleanasrequired.
Checkdraftatue.
13. Vacuum on Pump Check for too high a vacuum on the pump.
Check oil lines and distance from tank to boiler.
Repaire or replace as necessary.
14. Hole in suction line Check and replace as necessary.
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