A.O. Smith 28 30 50 60 Troubleshooting table for displayed errors, Insufficient or no hot, Water

Page 72

Warning

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

Table 10.1 General errors (Sheet 3 of 3)

is

	Symptom	Cause	Solution		Remark

	Explosive ignition	Incorrect supply	Set the correct supply pressure and/or burner pressure, see		If ignition is not improved, consult your installer.
		pressure and/or burner	’3.11 Checking the supply pressure and burner pressure’.
		pressure.

		Contaminated burner	Clean the burner. See ’12.4.2 Cleaning the burner’

		Contaminated orifice.	Clean the orifice. See ’12.4.3 Cleaning the orifice’

	Insufficient or no hot	Appliance is turned off.	Start-up the appliance. See ’7.2 Starting up’
	water.
	water.	No electric power	1.	Check whether the mains switch is ON.	See appendix ’A.2 Electrical diagram BFC’.
		No electric power	1.	Check whether the mains switch is ON.	See appendix ’A.2 Electrical diagram BFC’.
		present.	2.	Check that there is power to the mains switch.	If the error cannot be rectified, contact your installer.
			2.	Check that there is power to the mains switch.
			3.	Check whether the ON/OFF switch of the ThermoControl is ON
				(position I).
			4.	Check whether there is power to the electrical connection
				block.
			5.	The voltage measured must be 230 VAC (-15%, +10%).

		Hot water supply is	Reduce hot water consumption and give the appliance time to heat		If there continues to be insufficient or no hot water, consult your
		used up.	up.		installer.

		The controller is in	Put the controller in ON mode, see ’8.3 Switching into “ON mode”’.
		OFF mode.

		Temperature (Tset) is	Set temperature (Tset) to a higher value, see ’8.4 Setting the water
		set too low.	temperature’.

10.3 Troubleshooting table for displayed errors

Release R.1.3 UK

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Image 72

Contents Release R.1.3 UK Your installer Copyright TrademarksLiability More informationPage Table of contents GisFilling and draining Control panelStatus of the appliance Starting up and shutting downService program TroubleshootingMaintenance frequency MaintenanceAppendices IndexIntroduction What to do if you smell gas RegulationsAbout the appliance Target groups Maintenance Forms of notation Symbol Target groupRemark IntroductionOverview of this DocumentOverview of this document Chapter Target groups DescriptionGis Functioning of the appliance Introduction Functional description of the applianceIntroduction Water temperature protection Gas control Pressure switch Ionisation rodAppliance’s heating cycle Protection for the appliance Water temperature protection Pressure switchGas control 3 FanSafety of the instal- lation Unvented installationVented installation Ionisation rodInstallation Introduction Packaging Environmental conditionsHumidity and ambient temperature Maximum floor loadingWater composition Working clearancesEnvironmental conditions Working clearancesTechnical specifications Plan and elevation of the applianceDimensions Technical specificationsDime Description BFC Nsion Unit BFCVAC Installation diagram Gas dataGeneral G30-30 mbar butaneInstallation UnventedWater connections, Unvented Cold water side Hot water sideCirculation pipe Condensation drainageWater connections, Vented Gas connectionSee paragraph ’3.6.4 Condensation drainage’ See din FigureDimension BFC Air supply and flue gas dischargeAir supply and flue gas discharge Specification Description Concentric wall flue terminalConcentric roof flue terminal specifications Concentric roof flue terminalElectrical connection PreparationPreparation Mains voltage Mains voltage Electrical connectionExtra on mode switch Tank on Isolating TransformerContinuous pump Program-controlled pumpConnecting extra error signal Alarm OUT Checking the supply Pressure and burnerChecking the supply pressure and burner pressure ApplianceMain menu Conversion to a different gas category Conversion to a different gas categoryRemove the burner as complete assembly 13 Conversion of gas control Check the burner and supply pressure see paragraphInstallation Filling the appliance Filling unvented installations Filling vented installationsFilling and draining Filling the applianceInstallation diagrams F d c Filling and drainingDraining unvented installations Draining vented installationsDraining the appliance Draining the applianceGis Control panel Introduction OperatingExplanation of the icons ON/OFF switch of ThermoControl Navigation buttonsPC connection Control panelOperating modes Error conditions Service condition Status of the applianceIntroduction Operating modes Error conditions Status of the applianceService condition Service conditionGis Open the gas valve see ’ .1 Installation diagrams’ Starting up and shutting downIntroduction Starting up Shutting downShut the appliance down for a brief period OFF mode Disconnect the appliance from the mainsShut the appliance down for a longer period Starting up and shutting downAppliance’s heating cycle Appliance’s heating cycle12 Ignition Main menu Notational convention for menu-related instructionsSwitching into on mode Setting the water temperature Setting the water temperature via Setpoint MenuSetting water temperature during on mode Week programme Introduction Starting up and shutting down the week programChanging the appliance’s standard week program Remark Setting the switch-on time Setting switch-off timeExample Setting the water temperature Setting program-controlled pumpAdding times to a week program Week programmeDeleting times from a week program 20 Period added23 week program options Extra period Programming an extra periodSettings Setting menu languageSettings Setting day and time Displaying appliance specifications Remark46 Main menu Gis Service program Setting the hysteresisDisplaying the error history Setting the pump on/off Setting the service intervalService program Displaying the appliance historySetting the display contrast Setting the backlight timeSetting the display scroll speed Setting the display contrastService program Troubleshooting General errorsDisplayed errors Troubleshooting table for general errors Symptom Cause Solution Remark Gas smell Gas leakSymptom Cause Solution Remark Display is off See appendix ’A.2 Electrical diagram BFC’Water leakage Troubleshooting table for displayed errors Symptom Cause Solution Remark Explosive ignitionInsufficient or no hot WaterS02 blocking error S03 blocking errorS04 blocking error S05 blocking errorS13 blocking error S14 blocking errorS15 blocking error Phase-sensitive. See ’3.10 Electrical connection’ F02 lock out errorAppliance specifications’ How to bleed air from the gas line, and measure the supply F06 lock out error F07 lock out errorF08 lock out error ’3.9 Air supply and flue gas discharge’Error F09 remains active in the event that the water F10 lock out errorRelease R.1.3 UK Release R.1.3 UK C04 blocking error E01 blocking errorE03 blocking error E04 blocking errorMaintenance frequency Determining service intervalMaintenance frequency Maintenance Remark Preparation for maintenanceStarting up Maintenance Descaling and cleaning the tank Cleaning condensation water dischargeCleaning the burner Water-side mainte- nance IntroductionCleaning the orifice Cleaning heat exchanger12.4.3 Remark Finalising mainte- nanceWarranty Certificate Warranty Certificate Appendices Week program cardElectrical diagram AppendicesWeek program card Release R.1.3 UK IX Index Index0306 IX Index