A.O. Smith BFC - 30, BFC - 60 Code + Description Cause Solution Remark F04 lock out error

Page 77

 

 

 

 

is

 

 

 

 

 

Code + Description

Cause

Solution

Remark

 

 

 

 

 

 

 

F04 (lock out error)

No gas

1.

Open the main gas valve and/or the manual gas valve supplying

To repair the gas supply, contact your installation engineer

 

Three unsuccessful

 

 

the water heater

 

 

 

2.

Check the supply pressure to the gas control

 

 

ignition attempts.

 

 

 

 

3.

If necessary, repair the gas supply

 

 

 

 

 

 

 

 

 

 

 

 

Air in the gas pipes

Bleed the air out of the gas pipe

See Checking the supply pressure and burner pressure for how to

 

 

 

 

 

bleed air from the gas line, and measure the supply pressure and

 

 

No burner pressure

1.

Check the burner pressure to the gas control

 

 

burner pressure.

 

 

 

2.

Check that the gas valve(s) open and shut correctly

 

 

 

To replace the necessary parts, you must contact your installation

 

 

 

3.

If necessary, replace the gas control.

engineer

 

 

 

 

 

 

 

 

 

 

 

 

Defect in the hot

1.

Check that the hot surface igniter is correctly connected (JP2).

If the error persists, contact your installation engineer.

 

 

surface igniter circuit

2.

Check the wiring of the hot surface igniter.

To replace the necessary parts, you must contact your installation

 

 

 

engineer

 

 

 

3.

Measure the resistance across the hot surface igniter. This must

 

 

 

 

 

 

 

 

lie between 2 and 5 ohms.

 

 

 

 

4.

Check that the hot surface igniter lights up during ignition.

 

 

 

 

5.

If necessary, replace the hot surface igniter.

 

 

 

 

 

 

 

 

 

Defect in the ionisation

1.

Check that the flame probe is correctly connected (JP2)

 

 

 

circuit

2.

Check the wiring of the flame probe

 

 

 

 

 

 

 

 

3.

Measure the ionisation current. This must be at least 1.5

 

 

 

 

 

microamps.

 

 

 

 

4.

Replace the wiring if necessary.

 

 

 

 

 

 

 

 

Supply voltage too low

Check the supply voltage, this must be 230 VAC (-15%, +10%).

 

 

 

 

 

 

 

 

F05 (lock out error)

Incorrect roof or wall

1.

Check that the correct roof or wall flue conduit (3.9 "Air supply

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

 

 

conduit.

 

and flue") has been fitted.

installation engineer

 

Too many flame errors

Recirculating flue

2.

If necessary, install the correct roof or wall conduit.

 

 

have been signalled.

gases.

 

 

3.

Check that the roof or wall conduit discharges into a permitted

 

 

 

 

 

 

 

 

 

area.

 

 

 

 

 

 

 

 

Instruction manual BFC

77

Page 76 Page 78
Image 77
Page 76 Page 78
Contents Installation User Your installer Trademarks Read this manual carefullyLiability More informationGis Table of contents Troubleshooting Service programMaintenance frequency Performing maintenanceAppendices Table of contents What to do if you smell gas Regulations IntroductionAbout the appliance Introduction Target groups MaintenanceSymbol Target group Gis Chapter Target groups Description Overview of thisDocument Working principle of the appliance Safety of the installationGeneral working principle of the appliance Appliances heating cyclePressure switch Flame probe Water temperature protection TheGas valveAppliances heating cycle Protection for the appliance Working principle of the appliancePressure switch Water temperature protectionGas valve 4 FanUnvented installation Safety of the instal- lationVented installation Flame probePackaging InstallationEnvironmental ConditionsAppliance maximum floor load Air humidity and ambient temperatureWater composition Working clearancesWorking clearances Technical specifica- tions Dimensions of the applianceDimen Description General and electrical specificationsSion Unit BFCDescription II2H3+ Unit Gas dataGas category 2H G20 20 mbar General 3+Installation diagram Cold water side Water connections, UnventedHot water side Circulation pipeWater connections, Vented Requirements for flue gas discharge materials Gas connectionAir supply and flue Introduction C43 B23 C33 C13 C53 Practical example of concentric flue gas discharge Concentric connectionsType of appliance Description Appliance Diameter Maximum length Number of 90º BendsAppliance with concentric flue gas discharge material SpecificationsSpecification Description Concentric wall flue terminal specifications C13Practical example of parallel flue gas outlet Parallel connectionsElectrical connection Preparation Connecting the mains voltagePreparation 10.2 Preparation Connecting the mains voltageIsolating transformer Connecting a program-controlled pump Connecting continuous pumpConnecting an extra on mode switch Tank on Connecting an extra error signal Alarm OUT11.1 Checking the supply pressure and burner pressureProcedure to check pressures Finalising Adjusting the pressureGas data Finish off 3.11.4 FinalisingConversion to a different gas category Orifice assemblyConversion of gas control Conversion to a different gas categoryPage Conversion to a different gas category Filling Installation diagramFilling vented installations Filling unvented installationsFilling the appliance FillingDraining Draining Min Gis Control panel Electronic controller ON/OFF switchControls Meaning of iconsControl panel PC connectionOperating modes Operating modes Error conditions Service conditionStatus of the appliance Manual 13 Troubleshooting Error conditionsStatus of the appliance Menu 11 Main menu chapterManual 14 Maintenance frequency Service conditionGis Starting and running Open 3.5 Installation diagram the manual gas valveAppliances heating cycle Starting and running Appliances heating cycleStarting and running Shutting down Shut the appliance down for a brief period OFF modeElectrically isolating the appliance Shutting the appliance down for a long periodShutting down Notational convention for menu-related instructions Switching on the on modeMain menu Week program Setting water temperature during on modeStarting and stopping the week program Changing the appliances standard week programWeek program setting the water temperature Week program setting the switch- on timeWeek program setting the switch- off time Adding times to a week program Week program setting the program- controlled pumpExtra period Deleting times from a week programSetting the switch-off time Setting the switch-on timeSetting the water temperature Setting the program-controlled pumpSetting menu language SettingsSetting day and time Adjustable settingsDisplaying appliance specifications Displaying the error history Service programSetting the hysteresis Setting the service interval Switching the pump on or offSetting the display contrast Setting the display backlight timeDisplayed errors TroubleshootingGeneral errors Symptom Cause Solution Remark Gas smell Troubleshooting table for general errorsDisplay is off Start the appliance up 9 Starting and runningExplosive ignition Symptom Cause Solution Remark Water leakageHot water supply Insufficient or absentTroubleshooting table for displayed errors Displayed errors S13 blocking error Code + Description Cause Solution Remark S12 blocking errorS14 blocking error S15 blocking errorCode + Description Cause Solution Remark F02 lock out error Check the values 2.4.5 Pressure switch Code + Description Cause Solution RemarkMaintenance 15.2 Preparation for maintenance. If there is Code + Description Cause Solution Remark F03 lock out errorAppliance FlueF05 lock out error Code + Description Cause Solution Remark F04 lock out errorF07 lock out error Code + Description Cause Solution Remark F06 lock out errorF08 lock out error F09 lock out errorF11 blocking error Code + Description Cause Solution Remark F10 lock out errorC03 blocking error Code + Description Cause Solution Remark C02 lock out errorC04 blocking error Selected applianceE04 lock-out error Code + Description Cause Solution Remark E01 blocking errorE03 lock-out error Page Interval Maintenance frequencyMaintenance frequency Introduction Preparation for maintenance Performing maintenancePerforming maintenance Checking the anodes Descaling and cleaning the tankWater-side mainte- nance Introduction Clean the burners Cleaning condensation water dischargeClean the orifices Cleaning the heat exchanger Finalizing mainte- nance16.1 General warranty Warranty certificate16.2 Tank warranty Conditions for Instal- lation and useWarranty certificate Appendices Electrical diagramAppendices Electrical diagramTerminal Block Connections Appendices Period Week program cardTset Pump Example PeriodPage Index Index 0306

BFC - 30, BFC - 60 specifications

A.O. Smith is a well-regarded name in the water heating industry, known for producing innovative and efficient water heaters. Among their renowned products are the BFC - 60 and BFC - 30 models, which have gained popularity for their performance and reliability.

The A.O. Smith BFC - 60 and BFC - 30 are both designed to meet the diverse needs of residential and commercial users. The BFC - 60 has a capacity of 60 gallons, making it ideal for larger households or commercial settings where hot water demand is high. Meanwhile, the BFC - 30, with its 30-gallon capacity, caters to smaller households or establishments with lower hot water requirements.

One of the standout features of both models is their advanced heating technology. They are equipped with a high-efficiency burner system, which enhances the heating process while minimizing energy consumption. This means that users experience quicker recovery times and can enjoy a steady supply of hot water without the long wait associated with traditional heaters. The BFC series is designed to save energy, aligning with modern demands for sustainability.

Another significant characteristic of these models is their durable construction. Made with high-quality materials, including glass-lined tanks, they are built to resist corrosion and extend the lifespan of the water heater. This durability contributes to fewer maintenance requirements, giving users peace of mind.

In terms of safety, A.O. Smith has incorporated numerous features into the BFC series. Both models come with safety valves and thermostat controls to ensure that water is heated to appropriate temperatures, reducing the risk of scalding and malfunction. Additionally, their design allows for easy installation and maintenance, making them a user-friendly option.

Another aspect that distinguishes the BFC series is its compact design. Both models have a space-saving profile, making them suitable for installation in various locations, including tight utility rooms or basements. This flexibility allows homeowners and businesses to maximize their space without sacrificing performance.

Overall, the A.O. Smith BFC - 60 and BFC - 30 are exemplary water heating solutions that combine efficiency, durability, and safety. With their advanced features and technologies, they are an excellent choice for anyone in need of reliable hot water, ensuring comfort and satisfaction for years to come.
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