F10 lock out error | A.O. Smith 28 30 50 60 guide

Warning

Maintenance may only be performed by a qualified service and maintenance engineer.

Table 10.2 Displayed errors (Sheet 7 of 10)

is

Code + Description	Possible cause		Solution			Remark

F09 (lock out error)	Temperature at the top		1.	Check that the circulation pump (if present) is working.		If the error cannot be resolved or is persistent, contact your
Water temperature	of the tank exceeds		2.	Check the position of the temperature sensor T1.		installer.
Water temperature	93°C.		2.	Check the position of the temperature sensor T1.
protection.	93°C.		3.	Reset the water heater controller.
protection.


			n Remark
				Error “F09” remains active in the event that the water
				temperature during a reset was higher than 78 oC. If this is the
				case, first draw water off by opening the nearest hot water tap,
				so that cold water can flow in.


F10 (lock out error)	Pressure switch not		1.	Check the running speed of the fan. See ’8.7.4 Displaying		If the error cannot be resolved or is persistent, contact your
Restriction on number	closing.			appliance specifications’.		installer.
Restriction on number			2.	Check that the hoses on the pressure switch and the air supply		To replace the necessary parts, you must contact your installer.
of ignition attempts
of ignition attempts
based on pressure				hose between fan and burner are correctly fitted. Refit these if
switch state changes.				necessary.
			3.	Check for cracks in the hoses on the pressure switch and the
				air supply hose between fan and burner. If necessary, replace
				the hoses.
			4.	Check whether the flue gas discharge is compliant with
				Table 3.8.
			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.
				Table 12.1. 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.
			8.

Release R.1.3 UK

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Image 79

A.O. Smith 28 30 50 60 service manual Error F09 remains active in the event that the water, F10 lock out error

Contents

Release R.1.3 UK Your installer More information CopyrightTrademarks LiabilityPage Gis Table of contents Starting up and shutting down Filling and drainingControl panel Status of the appliance Maintenance Service programTroubleshooting Maintenance frequency Index Appendices What to do if you smell gas Regulations IntroductionAbout the appliance Introduction Target groups Maintenance Forms of notationSymbol Target group Remark Chapter Target groups Description Overview of thisDocument Overview of this document Gis Introduction Functional description of the appliance Functioning of the applianceIntroduction Pressure switch Ionisation rod Water temperature protection Gas controlAppliance’s heating cycle Protection for the appliance 3 Fan Water temperature protectionPressure switch Gas control Ionisation rod Safety of the instal- lationUnvented installation Vented installation Introduction Packaging Environmental conditions Installation Working clearances Humidity and ambient temperatureMaximum floor loading Water composition Working clearances Environmental conditions Plan and elevation of the appliance Technical specifications Unit BFC DimensionsTechnical specifications Dime Description BFC Nsion VAC G30-30 mbar butane Installation diagramGas data General Unvented Installation Condensation drainage Water connections, Unvented Cold water sideHot water side Circulation pipe See din Figure Water connections, VentedGas connection See paragraph ’3.6.4 Condensation drainage’ Air supply and flue gas discharge Dimension BFCAir supply and flue gas discharge Concentric wall flue terminal Specification Description Concentric roof flue terminal Concentric roof flue terminal specifications Preparation Electrical connectionPreparation Mains voltage Electrical connection Mains voltage Program-controlled pump Extra on mode switch Tank onIsolating Transformer Continuous pump Appliance Connecting extra error signal Alarm OUTChecking the supply Pressure and burner Checking the supply pressure and burner pressure Main menu Conversion to a different gas category Conversion to a different gas category Remove the burner as complete assembly Check the burner and supply pressure see paragraph 13 Conversion of gas control Installation Filling the appliance Filling the appliance Filling unvented installationsFilling vented installations Filling and draining Filling and draining Installation diagrams F d c Draining the appliance Draining unvented installationsDraining vented installations Draining the appliance Gis Introduction Operating Control panel Control panel Explanation of the icons ON/OFF switch of ThermoControlNavigation buttons PC connection Status of the appliance Operating modes Error conditions Service conditionIntroduction Operating modes Status of the appliance Error conditions Service condition Service condition Gis Shutting down Open the gas valve see ’ .1 Installation diagrams’Starting up and shutting down Introduction Starting up Starting up and shutting down Shut the appliance down for a brief period OFF modeDisconnect the appliance from the mains Shut the appliance down for a longer period Appliance’s heating cycle Appliance’s heating cycle 12 Ignition Notational convention for menu-related instructions Main menu Setting the water temperature via Setpoint Menu Switching into on mode Setting the water temperatureSetting water temperature during on mode Starting up and shutting down the week program Week programme IntroductionChanging the appliance’s standard week program Remark Setting switch-off time Setting the switch-on timeExample Week programme Setting the water temperatureSetting program-controlled pump Adding times to a week program 20 Period added Deleting times from a week program 23 week program options Programming an extra period Extra period Setting menu language SettingsSettings Displaying appliance specifications Remark Setting day and time 46 Main menu Gis Setting the hysteresis Service programDisplaying the error history Displaying the appliance history Setting the pump on/offSetting the service interval Service program Setting the display contrast Setting the display contrastSetting the backlight time Setting the display scroll speed Service program General errors TroubleshootingDisplayed errors Symptom Cause Solution Remark Gas smell Gas leak Troubleshooting table for general errors See appendix ’A.2 Electrical diagram BFC’ Symptom Cause Solution Remark Display is offWater leakage Water Troubleshooting table for displayed errorsSymptom Cause Solution Remark Explosive ignition Insufficient or no hot S05 blocking error S02 blocking errorS03 blocking error S04 blocking error S14 blocking error S13 blocking errorS15 blocking error F02 lock out error Phase-sensitive. See ’3.10 Electrical connection’ Appliance specifications’ How to bleed air from the gas line, and measure the supply ’3.9 Air supply and flue gas discharge’ F06 lock out errorF07 lock out error F08 lock out error F10 lock out error Error F09 remains active in the event that the water Release R.1.3 UK Release R.1.3 UK E04 blocking error C04 blocking errorE01 blocking error E03 blocking error Determining service interval Maintenance frequency Maintenance frequency Remark Preparation for maintenance Maintenance Starting up Maintenance Water-side mainte- nance Introduction Descaling and cleaning the tankCleaning condensation water discharge Cleaning the burner Remark Finalising mainte- nance Cleaning the orificeCleaning heat exchanger 12.4.3 Warranty Certificate Warranty Certificate Week program card Appendices Appendices Electrical diagram Week program card Release R.1.3 UK Index IX Index IX Index 0306