A.O. Smith BFC - 80 Code + Description Cause Solution Remark F03 lock out error, Appliance, Flue

Page 75

 

 

 

 

is

 

 

 

 

 

Code + Description

Cause

Solution

Remark

 

 

 

 

 

 

 

F03 (lock out error)

Damaged wiring/Open

1.

Check the wiring between the pressure switch and the

If the error cannot be resolved or is persistent, contact your

 

 

circuit

 

controller

installation engineer

 

The pressure switch

 

2.

If necessary, replace the wiring

To replace the necessary parts, you must contact your installation

 

fails to work correctly

 

engineer

 

 

 

 

 

 

Pressure switch not

1.

Check the running speed of the fan (12.5 "Display the selected

 

 

 

closing

 

appliance")

 

 

 

 

2.

Check that the hoses on the pressure switch and the air supply

 

 

 

 

 

hose between fan and burner are correctly fitted. Refit them if

 

 

 

 

 

necessary

 

 

 

 

3.

Check for cracks in the hoses on the pressure switch and in the

 

 

 

 

 

air supply hose between fan and burner. If necessary, replace

 

 

 

 

 

the hoses.

 

 

 

 

4.

Check that the flue gas outlet is compliant (3.9 "Air supply and

 

 

 

 

 

flue").

 

 

 

 

5.

Check for blockage in the flue gas discharge. Remove any

 

 

 

 

 

blockage that may be present

 

 

 

 

6.

Check for blockage in the condensation water discharge.

 

 

 

 

 

Remove any blockage that may be present.

 

 

 

 

7.

Measure the pressure differential across the pressure switch.

 

 

 

 

 

See the table in Preparation for

 

 

 

 

 

maintenance (15.2 "Preparation for maintenance"). If there is

 

 

 

 

 

insufficient pressure differential, clean the heat exchanger. If the

 

 

 

 

 

pressure differential is acceptable, check that the pressure

 

 

 

 

 

switch is closing, using a multimeter.

 

 

 

 

 

 

 

 

Instruction manual BFC

75

Page 74 Page 76
Image 75
Page 74 Page 76
Contents 100 Your installer More information Read this manual carefullyTrademarks LiabilityGis Table of contents Performing maintenance Service programTroubleshooting Maintenance frequencyAppendices Table of contents Introduction About the applianceWhat to do if you smell gas Regulations Target groups Maintenance Forms of notation Symbol Target groupIntroduction Overview of this DocumentChapter Target groups Description Gis General working principle of the appliance Working principle of the applianceWater temperature protection TheGas valve Appliances heating cycle Protection for the applianceWorking principle of the appliance 4 Fan Water temperature protectionPressure switch Gas valveFlame probe Safety of the installationUnvented installation Vented installationConditions InstallationPackaging EnvironmentalWorking clearances Air humidity and ambient temperatureMaximum floor load Water compositionTechnical specifications Dimensions of the appliance General and electrical specifications Dimen Description BFC SionUnit BFC Description II2H3P Unit BFC Natural gas Gas dataInstallation diagram Circulation pipe Water connections, VentedCold water side Hot water sideWater connections, Unvented Gas connection Air supply and flue IntroductionRequirements for flue gas discharge materials C43 B23 C33 C13 C53 Appliance Diameter Maximum length Number Bends Concentric connectionsPractical example of concentric flue gas discharge Type of appliance DescriptionAppliance with concentric flue gas discharge material SpecificationsSubject Description Concentric wall flue terminal specifications C13Practical example of parallel flue gas discharge Parallel connectionsElectrical connection Preparation Connecting the mains voltagePreparation Connecting the mains voltage Isolating transformer10.2 Preparation Checking the supply pressure and burner pressure Connecting a program-controlled pumpConnecting an extra on mode switch Tank on Connecting an extra error signal Alarm OUT11.1 Procedure to check pressuresGas data Finish off 3.11.4 Finalising Adjusting the pressure11.3 FinalisingConversion to a different gas category Orifice assemblyStart 9 Starting and running the appliance Conversion to a different gas categoryFilling Installation diagramFilling Filling unvented installationsFilling vented installations Filling the applianceDraining Draining Min Gis Meaning of icons Electronic controller ON/OFF switchControl panel ControlsControl panel PC connectionOperating modes Error conditions Service condition Status of the applianceOperating modes Menu 11 Main menu chapter Error conditionsManual 13 Troubleshooting Status of the applianceManual 14 Maintenance frequency Service conditionGis Starting and running Appliances heating cycle Open 3.5 Installation diagram the manual gas valveStarting and running Appliances heating cycleStarting and running Shutting the appliance down for a long period Shut the appliance down for a brief period OFF modeShutting down Electrically isolating the applianceShutting down Notational convention for menu-related instructions Switching on the on modeSetting water temperature during on mode Main menuMain menu Week program setting the switch- on timeStarting and stopping the week program Changing the appliances standard week programAdding times to a week program Week program setting the switch- off timeWeek program setting the water temperature Week program setting the program- controlled pumpDeleting times from a week program Pump 11.6.4 Week program setting the program-controlled pumpSetting the switch-on time Extra periodProgramming an extra period Setting menu language SettingsDisplaying appliance specifications Setting day and timeRelevant display appears Service program Setting the hysteresisDisplaying the error history Setting the display backlight time Switching the pump on or offSetting the service interval Setting the display contrastTroubleshooting General errorsDisplayed errors Start the appliance up 9 Starting and running Troubleshooting table for general errorsSymptom Cause Solution Remark Gas smell Display is offInsufficient or absent Symptom Cause Solution Remark Water leakageExplosive ignition Hot water supplyDisplayed errors S15 blocking error Code + Description Cause Solution Remark S12 blocking errorS13 blocking error S14 blocking errorCode + Description Cause Solution Remark F02 lock out error Check the values 2.4.5 Pressure switch Code + Description Cause Solution RemarkReplaced Flue Code + Description Cause Solution Remark F03 lock out errorMaintenance 15.2 Preparation for maintenance. If there is ApplianceF05 lock out error Code + Description Cause Solution Remark F04 lock out errorF09 lock out error Code + Description Cause Solution Remark F06 lock out errorF07 lock out error F08 lock out errorF11 blocking error Code + Description Cause Solution Remark F10 lock out errorSelected appliance Code + Description Cause Solution Remark C02 lock out errorC03 blocking error C04 blocking errorCode + Description Cause Solution Remark E01 blocking error E03 lock-out errorE04 lock-out error Interval Maintenance frequencyMaintenance frequency Introduction Preparation for maintenance Performing maintenancePerforming maintenance Water-side maintenance Introduction Descaling and cleaning the tankChecking the anodes Clean the orifices Cleaning condensation water dischargeGas-side maintenance Finalizing maintenance Introduction Clean the burnersConditions for Installation and use Warranty certificate16.1 General warranty 16.2 Tank warrantyWarranty certificate Week program card AppendicesAppendices BFC Electrical DiagramTerminal Block Connections Appendices Example Period Week program cardPeriod Tset PumpPage Index Index 0308

BFC - 80, BFC -100 specifications

A.O. Smith is a renowned name in the water heater industry, and its BFC series, which includes the BFC-100 and BFC-80 models, exemplifies their commitment to innovation and efficiency. These units are designed to meet the demanding needs of both residential and commercial applications, providing reliable hot water solutions.

The A.O. Smith BFC-100 and BFC-80 are distinguished by their high capacity and robust design. The BFC-100 model boasts a capacity of 100 gallons, while the BFC-80 is ideal for those requiring 80 gallons. This makes them suitable for larger households or commercial establishments where hot water demand can be significant.

One of the primary features of these models is their advanced heating technology. Both units utilize a high-efficiency burner that ensures rapid heating and minimal energy consumption. This means users benefit from shorter wait times for hot water, reducing overall energy costs. The BFC series is also equipped with a special flame retention head that enhances combustion efficiency and prolongs the lifespan of the unit.

In terms of construction, the BFC-100 and BFC-80 models are built with high-quality materials that enhance durability and resistance to corrosion. The tanks are insulated with high-density foam, which improves energy retention and helps maintain water temperature for longer periods. This is crucial for conserving energy and minimizing heating costs.

Safety is a top priority for A.O. Smith, and the BFC series reflects this commitment. Each unit comes with a range of safety features, including a temperature and pressure relief valve that prevents overheating and excessive pressure buildup. Additionally, they are designed to meet strict industry standards, ensuring peace of mind for users.

Installation of both models is straightforward, with flexible venting options that accommodate various building layouts. Whether you are upgrading an existing water heating system or installing a new one, the BFC series is designed to integrate seamlessly.

In summary, the A.O. Smith BFC-100 and BFC-80 are excellent options for those seeking reliable, efficient, and durable water heating solutions. With their impressive capacity, advanced heating technology, robust construction, and safety features, these models stand out in the market and are sure to meet the hot water needs of any household or commercial space. Whether for residential use or in a business setting, A.O. Smith’s BFC series represents quality and innovation in hot water heating.
Top Page Image Contents