State Industries GPO 86-199 manual Troubleshooting

Page 22

TROUBLESHOOTING

TABLE 10 - OIL BURNER TROUBLESHOOTING

TROUBLE

CAUSE

REMEDY

 

 

 

 

 

 

 

Oil level below intake line in supply tank.

Fill tank with oil.

 

 

Clogged strainer or filter.

Remove and clean strainer. Replace filter element.

 

 

 

Clogged nozzle.

Replace nozzle.

 

 

 

Air leak in intake line.

Tighten all fittings in intake line. Tighten unused intake

 

 

 

port plug. Check filter cover and gasket.

 

 

Restricted intake line. (High vacuum reading).

Replace any kinked tubing and check any valves in

 

 

 

intake line.

No Oil Flow

A two line pipe system that becomes air bound.

Check for and insert by-pass plug. Make sure return

at Nozzle

 

line is below oil level in tank.

 

 

A single line pipe system that becomes air bound.

Loosen gauge port plug or air bleed valve and bleed oil

 

 

 

for 15 seconds after foam is gone in bleed hose, Check

 

 

 

intake line fittings for tightness. Check all fuel pump plugs

 

 

 

for tightness.

 

 

Slopping or broken coupling.

Replace coupling.

 

 

 

Rotation of motor and fuel unit pump is not the

 

 

 

 

same as indicated by arrow on the pad at top of unit.

Install fuel pump with correct rotation.

 

 

Frozen fuel pump shaft.

Replace fuel pump. Check for water and dirt in tank.

 

 

 

Loosen plugs and fittings.

Tighten with good quality thread sealer.

 

 

Leak at pressure adjusting screw or nozzle plug.

Replace fuel pump.

 

Oil Leak

Blown seal (single-pipe system)

Check to see if by-pass plug has been left in fuel pump.

 

 

 

 

Replace fuel pump.

 

 

Seal leaking.

Replace fuel pump.

 

 

Cover.

Tighten cover screws.

 

 

Bad coupling alignment.

Loosen fuel pump mounting screws slightly and shift

Noisy

 

fuel pump in different positions until noise is eliminated.

Operation

 

Retighten mounting screws.

 

 

Air in inlet line.

Check all connections. Use only good flare fittings.

 

 

Tank turn on two line pipe system and inside tank.

Install return line hum eliminator.

 

 

 

Partially clogged strainer or filter.

Remove and clean strainer.

 

 

Air leak in intake line.

Tighten all fittings.

 

 

Air leaking around cover.

Be sure strainer cover screws are tightened securely.

 

 

 

 

Check for damaged cover gasket.

Low Oil

Defective gauge

Check gauge against master gauge or other gauge.

Pressure

Nozzle capacity is greater than fuel pump capacity.

Replace fuel unit with unit of correct capacity.

 

 

 

To determine the cause of improper cut-off, insert

 

 

 

 

a pressure gauge in the nozzle port of the fuel pump.

 

 

 

 

After a minute of operation, shut burner down. If the

 

 

 

 

pressure drops from normal operating pressure and

 

 

 

 

stabilizes, the fuel pump is operating properly and air

 

 

 

 

is the cause of improper cut-off. If, however, the

 

 

 

 

pressure drops to 0 psi, fuel unit should be replaced.

 

 

Improper

NOTE: Never use the amount of pressure drop as an

 

 

Nozzle

indication of the quality or speed of cut-off.

 

 

Cut-Off

Filter leaks.

Check face of cover and gasket fro damage.

 

 

Strainer cover loose.

Tighten 4 screws on cover.

 

 

Air pocket between cut-off valve and nozzle.

Run burner, stopping and starting unit, until smoke

 

 

 

and after-fire disappears.

 

 

Air leak in intake line.

Tighten intake fittings. Tighten unused intake port and

 

 

 

return plug.

 

 

 

Partially clogged nozzle strainer.

Clean strainer or change nozzle.

 

 

Leak at nozzle adaptor.

Change nozzle and adaptor.

 

 

 

 

 

 

22

Image 22
Contents Place These Instructions Adjacent to Heater Lindahl Parkway Ashland City, TNNotify Owner to Keep for Future Reference Recovery CAPACITIES, based on 80% efficiency Features and SpecificationsNominal Model Dimensions GPOApprovals Table of ContentsIdentification Safety InstallationCombustion and Ventilation AIR Proper Installation on Combustible FlooringClearances Chemical Vapor CorrosionFlue GAS Venting Vent Connector and Draft RegulatorProper Vent Connector Installation ChimneyClosed Water System Drain Valve and Access PanelsWater Piping Fuel SystemsGravity FEED, Supply Line ONLY, Installation Burner InstallationTypical Heater Installation Figure System TypesFuel Pump OIL Pump & Nozzle SpecificationsAssembly of the OIL Burner to the Heater BurnerOperation Water Temperature ControlHigh Limit Switch E.C.O FillingDraining MaintenanceBurner Certificate Combustion Test Relief ValvesLime Scale Removal Sediment RemovalFlo-jug Method of Deliming Vent System Circulating PumpSoot Removal Anode ROD InspectionInset B Installation DiagramsInstall in Accordance with Local Codes Inset aSingle Temperature or Booster Inset B Install in Accordance with Local Codes Inset a Not Enough or no HOT Water Check List and Service InformationElectrical Wiring Replacement Manifold KIT Commercial OIL Fired Water HeatersWater Heater Makes Sounds Burner STARTS-WONT OperateWater is TOO HOT Water Leakage is SuspectedSafety Primary Control Combustion Test SpecificationsNormal START, but Locks OUT on Safety ProcedureTroubleshooting Item no Cleanout Assembly Lindahl Parkway, Ashland City, TN Phone 800-821-2017 FaxDescription