PB Heat DE manual Boiler Troubleshooting Guide Burners Functioning, See Figure

Page 32

TROUBLESHOOTING

Table 8.2: Boiler Troubleshooting Guide (Burners Functioning)

Problem

Possible Causes

Corrective Actions

 

Burners not functioning.

1. See Figure 8.2

1. See Figure 8.2

 

 

 

 

 

 

 

 

 

 

Burners will not shut

1. Defective gas valve.

1.

Use Figure 8.2 to troubleshoot intermittent

 

 

down.

 

 

 

ignition gas valve. Replace if necessary.

 

 

 

2.

Short circuit.

2.

Check and correct wiring.

 

 

 

 

 

 

 

 

Flashback or burning

1. Manifold gas pressure too low.

1.

Adjust to proper pressure.

 

 

at orifice spuds.

2.

Improperly sized/drilled orifice spuds.

2.

Install correct spuds.

 

 

 

 

 

 

3.

Leaking gas valve.

3.

Replace valve.

 

 

 

4.

Burrs on orifice.

4.

Remove burrs.

 

 

 

5.

Low supply gas pressure.

5.

Contact gas supplier if natural gas. Adjust

 

 

 

 

 

 

regulator if LP gas.

 

 

 

 

 

 

 

 

Delayed ignition.

1. Insufficient pilot flame.

1.

Increase pilot gas flow.

 

 

 

2.

Pilot burner/orifice clogged.

2.

Clean pilot burner and orifice.

 

 

 

3.

Overfiring.

3.

Reduce rate to input on rating label.

 

 

 

4.

Misaligned burners or pilot.

4.

Realign burners or pilot.

 

 

 

 

 

 

 

 

Condensation at boiler

1. Vent pipe not sloped towards vent terminal.

1.

Install condensate trap per vent manufacturer’s

 

 

vent connector/fan.

 

 

. instructions.

 

 

 

 

 

2.

Slope vent pipe towards vent terminal.

 

 

 

 

 

 

 

 

Boiler not heating

1. Underfiring.

1.

Increase rate to input on rating label.

 

 

properly.

2.

Limit set too low.

2.

Reset limit to higher setting.

 

 

 

 

 

 

3.

Air in system.

3.

Vent air from all points in system.

 

 

 

4.

Circulator malfunctioning.

4.

Check circulator, replace if necessary.

 

 

 

5.

Circulation system clogged.

5.

Shut down and cool boiler, drain and flush

 

 

 

 

 

 

system.

 

 

 

6.

Incorrect thermostat heat anticipator setting.

6.

Adjust heat anticipator to 0.2 Amp.

 

 

 

 

 

 

 

Fumes or gas odors

1. Leaks in gas piping or fittings.

1. Locate and repair or replace.

 

 

 

2. Leaks in gas service line or meter.

2. Shut down boiler and notify gas provider.

 

 

 

3. Obstructed chimney.

3. Check, repair and/or clean chimney.

 

 

 

4. Obstructed flueways or vent.

4. Clean flueways or vent and remove obstructions.

 

 

 

5. Draft problem in boiler room.

5. Check air supply, ventilation and venting system.

 

 

 

6. Overfiring.

7. Reduce rate to input on rating label.

 

 

 

 

 

 

 

 

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Contents Series DE Table of Contents Special Attention Boxes Using this ManualInstallation Sequence Preinstallation Accessibility ClearancesClearance from Combustible Construction AIR for Combustion and VentilationWhere Ifan = Input of the fan assisted appliances in Btu/hr Required Volume other =Air Openings All Air from Outdoors through Vertical Ducts Mechanical Combustion Air SupplyCombustion Air Ducts Installation SurveyPlanning the Layout Boiler SET-UP Water Piping and Controls Boiler Supply and ReturnSafety Relief Valve Parallel Hook-up with Water ChillerPiping for Zoned Systems Zone Piping with Zone ValvesExpansion Tank INDIRECT-FIRED Water HeaterFreeze Protection For new or existing systems that must be freeze- protectedVenting GeneralChimney Venting Direct Exhaust Horizontal VentingEquivalent Vent Length Direct Exhaust, Sidewall Venting with Vertical Off-Set Direct Exhaust Vertical Venting Direct Exhaust Sidewall VentingBoiler Removal from Common Venting System Seal any unused openings in the common venting systemGAS Piping Gas Connection to BoilerNatural Gas Electrical Wiring ControlsZoned System Wiring Wiring and Connection Diagram Sequence of OperationIgnition System Operating Sequence Zone Wiring with Zone Valves START-UP Procedures Completing the InstallationValve Tapping and Adjustment Screw Locations For Your Safety Read Before Lighting Adjustment of GAS Pressure Regulator Control DescriptionsChecking Burner Input See .1 in Electrical for locations of these devicesCHECK-OUT Procedure START-UP Procedures Measuring Suction Pressure TroubleshootingTroubleshooting Guides Procedure For Measuring Fan Suction Pressure Boiler Troubleshooting Guide Burners Functioning See FigureBoiler Troubleshooting Guide Burners Not Functioning Maintenance Monthly with Boiler in USE Daily with Boiler in USEWeekly with Boiler in USE Annually Before Start of Heating Season Intermittent Pilot and Main Burner FlameBoiler Dimensions & Ratings Series DE Boiler RatingsRepair Parts Repair Parts Series DE GAS BoilerBase/Burners/Manifold Repair Parts Page Page Series DE

DE specifications

PB Heat DE, recognized for its exceptional heating appliances, is a leading manufacturer of high-efficiency boilers and hydronic heating systems. With a commitment to quality and innovation, PB Heat DE has established itself as a trusted name in the home heating industry. The company emphasizes energy efficiency, reliability, and user comfort, ensuring that their products meet the diverse needs of residential and commercial customers alike.

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