Baxi Potterton 24 Eco HE manual Fault Finding

Page 44

15.0 FAULT FINDING

E

Check and correct if necessary

1.Electrical and pressure tube connections

2.Blockage of pressure tubes

3.Restriction in flue

4.Venturi

NO

Replace air pressure switch

F

G

 

 

NO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Gas at burner

 

 

 

Ensure gas is on and purged

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PCB - M4 connector is approx 230V AC,

 

 

 

 

 

 

Replace gas valve

 

 

 

 

 

 

 

terminals 36 & 38

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Turn selector switch

 

 

 

 

 

 

 

 

neon illuminated

 

 

 

 

 

 

 

 

 

 

 

 

to ‘Reset’ position

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Replace PCB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.Check the burner setting pressure of

the gas valve

(see Section 9.2 of Commissioning)

2.

Voltage at modulating coil of gas valve is:

YES

 

 

Max. burner press.approx 9V DC (13V DC LPG)

Replace gas valve

 

 

Min. burner press.approx 1V DC

 

 

 

 

 

 

 

 

Current at modulating coil of gas valve is:

 

 

 

 

(Use an instrument with average function for this

NO

 

 

measure)

 

 

Replace PCB

30 ÷ 230 mA DC (45 ÷ 310 mA DC LPG)

 

 

 

 

 

 

 

 

 

 

 

H

Check and correct if necessary

1.Ignition electrode and lead

2.Electrode connection

3.Spark gap and position

YES

230V at Main PCB - M4 connector across terminals 37 & 38. Check wiring

NO

YES

Replace PCB

Replace gas valve

electrical

plug/igniter assy

44

Publication No. 5111811

Page 43 Page 45
Image 44
Page 43 Page 45
Contents Performa Contents Installer Notification Guidelines Scheme Members onlyImportant Installation, Commissioning, Service & Repair LegislationOptional Extras IntroductionDescription General Layout LayoutCentral Heating Mode Fig Domestic Hot Water Mode FigAppliance Operation Central Heating Circuit KeyTechnical Data Dimensions and Fixings Gas Inlet 68mm95mm 65mm Left Hand Side 130mm BoilerSystem Details InformationCentral Heating Circuit BypassPressure Relief Valve Fig System Filling and PressurisingExpansion Vessel Central Heating only Hard Water Areas Domestic Hot Water CircuitShowers Site Requirements LocationElectrical Supply Ventilation of CompartmentsGas Supply Condensate Drain Flue Likely flue positions requiring Flue terminal guardFlue Dimensions Flue TrimTerminal Guard Fig Maximum permissible flue length is 4 metresHorizontal Flues Vertical Twin Pipe Flue OptionsInstallation Initial PreparationFlushing Preparing The BoilerFitting The Boiler Fitting the Pressure Relief Discharge Pipe FigCondensate Drain see section Fitting The FlueVertical Flue Functional Flow Diagram Key to WiringMaking The Electrical Connections Preliminary Electrical ChecksCommissioning Commissioning the BoilerAdjusting the Pressure Fig Checking the Burner PressureCompletion CompletionServicing the Boiler 11 .1 Annual ServicingInlet / Return Manifold Annual ServicingW. Filters Fig Pressure Switch Fig Changing ComponentsHeat Exchanger Fig Burner FigInsulation Fig Injectors FigElectrodes Fig Gas Valve Fig Temperature Sensor FigSafety Thermostat Fig Automatic Air Vent Fig Pump Head Only FigsPump Complete Figs Condensate Trap Fig Pressure Gauge FigsExpansion Vessel Fig Selector Switch Fig 12.18 P.C.B. FigDiverter Valve Assembly Fig Plate Heat Exchanger FigSeals DHW Pressure Differential Valve FigDiverter Valve Assembly CH Pressure Microswitch FigFlow Regulator Figs CH Pressure Differential Valve FigSecondary Heat Exchanger Fig Flue Overheat Thermostat FigControl PCB Illustrated Wiring DiagramElectrical Short Parts List Short Parts ListOperation sequence Correct Fault FindingCarry out initial fault finding checks Operation sequence Fault Finding Solutions Sections a to E Fault Finding PCB GAS Boiler Commissioning Checklist Service 1 Date Service 3 DateService 5 Date Service 7 DateService GB General Enquiries GBTechnical GB Literature Request GB

24 Eco HE specifications

The Baxi Potterton 24 Eco HE is a highly efficient and reliable boiler designed to meet the heating and hot water needs of modern homes. This wall-mounted combination boiler is particularly suited for smaller properties, providing a compact solution without compromising on performance.

One of the standout features of the Baxi Potterton 24 Eco HE is its high efficiency rating. It boasts an impressive ErP A-rating for both heating and hot water, which indicates that it is designed to minimize energy consumption and reduce utility bills. The condensing technology employed in this boiler recovers heat from flue gases that would otherwise be lost, optimizing the overall energy use and enhancing its eco-friendly credentials.

The Baxi Potterton 24 Eco HE also incorporates an intelligent control system, allowing homeowners to manage their heating settings more effectively. The built-in digital display is user-friendly, providing easy access to information such as system pressure and temperature settings. This feature facilitates easy programming of heating schedules, helping to ensure comfort while optimizing energy use.

Another characteristic of the Baxi Potterton 24 Eco HE is its impressive hot water output. With a hot water flow rate of up to 10.2 liters per minute, it ensures that showers and taps can be used simultaneously without running out of hot water. This makes it an excellent choice for families or households where demand for hot water is high.

Furthermore, the compact design of the Baxi Potterton 24 Eco HE allows for flexible installation options. Its reduced size means it can fit easily in kitchen cupboards or other confined spaces, making it ideal for homes where space is at a premium.

The boiler is equipped with a low-energy pump and a built-in frost protection feature, ensuring reliable operation even in colder climates. Additionally, its quiet operation contributes to a more comfortable living environment.

In summary, the Baxi Potterton 24 Eco HE is an efficient, compact, and powerful boiler that caters to the demands of modern living. With features such as high efficiency, intelligent controls, impressive hot water delivery, and flexible installation options, it stands out as a top choice for homeowners seeking a dependable and eco-friendly heating solution. This boiler is a testament to Baxi's commitment to delivering quality and innovation in the heating sector.
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