Beckett SLD375, SL5125, SLD4100, SLD5125, SL375, SL7175 Trouble Shooting Guide, Burner Will Not Start

Page 24

24

Trouble Shooting Guide

Burner Will Not Start

 

 

 

 

Thermostat Set

No

Adjust

Above Room

 

Thermostat

Temperature

 

 

 

 

Yes

 

 

 

 

 

 

 

 

 

 

High Limit Set on

No

Adjust High

Aquastat to 180

 

Limit

Deg. Min.

 

 

 

 

Yes

 

 

 

 

 

 

110 Volts between

No

L1 and L2 at

 

 

Aquastat

 

 

Yes

 

 

 

 

110 Volts between No

B1 and B2 at

Aquastat

Yes

Check Fuses and

Safety Switches

Remove Thermostat

Wires From Aquastat and

Jumper T T terminals.

Aqustat Relay Energizes

Yes

No

Aquastat

No

in Fault

 

 

 

 

Condition

 

 

 

 

 

 

 

Yes

 

 

 

 

 

 

Check Thermostat

Circuit

Refer to

Aquastat Manual

110 Volts at

Burner

Yes

Refer to Oil

Burner Manual

No

Check Molex

Connector

110Volts

Between B1 and B2 at Aquastat

Yes

No

Replace Aquastat

Image 24
Contents SL375 Thru SL7175 Be Aware of Hazard Definitions Table of Contents Ratings and Data Installation Clearances Ventilation and Combustion AirBoiler Assembly Packaged Boiler is Shipped in TWO PackagesTemperature Controls Installation and Adjustment Boiler Trim PipingJacket installation System Piping Low water cut offRelief Valves Expansion TanksVenting ChimneyChimney Connector Direct Venting Combination AIR INTAKE/VENT System Page Burner Installation Direct Vent OIL BurnersElectrical Wiring Oil Tank and PipingPage Page Swing Door OperationBurner Adjustments Start-UpStart-up Equipment Preliminary Burner Settings Control Circuit Safety ChecksMaintenance Oil FilterBoiler Oil BurnerDomestic Hot Water Storage Tank Vent SystemTrouble Shooting Guide Burner Will Not StartBurner Goes Off On Safety Page Solaia Residential Cast Iron Boiler Warranty Installation and Service Check List Warranty Registration Page