Baxi Potterton G.C.No 47 393 21 Turn selector switch to, Turn Domestic Hot Water, Close DHW tap

Page 52

18.0 Fault Finding

Domestic Hot Water - Follow operational sequence

Turn selector switch to

The display illuminates

YES

NO

Go to section ‘A’

Error 110 flashing

YES

Error 133 flashing

 

NO

 

Error 20, 28 or 50 flashing

YES

 

NO

 

Error 119 flashing

YES

 

NO

 

Turn Domestic Hot Water

 

thermostat to Maximum.

 

Open DHW tap fully.

 

DHW Hall Effect sensor

NO

operated (red neon on the

 

sensor illuminated

 

YES

 

3-way valve is open to

NO

Domestic Hot Water circuit

 

YES

NO

Pump runs

 

YES

 

Fan runs

NO

 

YES

 

Fan runs at correct speed

NO

 

YES

Spark at ignition electrodes for

NO

up to 5 seconds and for 3

 

attempts

 

 

YES

NO

 

 

 

Turn the selector switch to reset position for 5 seconds

Go to section ‘E’

Go to section ‘C’

DHW flow rate more than 2

l/min

Go to section ‘K’

Error 125 flashing

Go to section ‘B’

Error 160 flashing

Go to section ‘D’

Error 160 flashing

Go to section ‘L’

Error 133 flashing

Go to section ‘F’

YES

YES

YES

If the error 110 is still flashing.

Go to section ‘J’

Go to section ‘B’

YES

Is mains water filter and

assembly clean?

Is the magnetic detector free

to move in the Hall Effect

sensor

Go to section ‘H’

Turn the selector switch to the

reset position for 5 seconds

Burner lights

YES

 

YES

 

Burner output modulates to

NO

 

maintain the temperature set

 

YES

NO

 

Close DHW tap

 

YES

 

DHW flow sensor senses no

YES

flow. Burner goes out

 

Burner does not stay alights

YES

after 5 seconds

NO

 

 

Reduce DHW flow rate

 

Burner modulates

 

 

 

 

 

Error 130 flashing

 

Go to section ‘M’

 

 

 

Fan stops after 10 seconds

YES

 

 

 

Error 133 flashing

Go to section ‘I’

Clean DHW NTC sensor and DHW heat exchanger

Pump runs for 30 seconds

YES

Operation sequence

successful

52© Baxi Heating UK Ltd 2011

Image 52
Contents Installation & Service Instructions 0086 Installer Notification Guidelines Scheme Members onlyLegislation Important Installation, Commissioning, Service & RepairCodes of Practice refer to the most recent version Safe Manual Handling GeneralPreparation TechniqueContents Introduction Contents of PackDescription General Layout LayoutAppliance Operation Frost Protection ModePump Protection Technical Data Promax Combi 24, 28Dimensions and Fixings OrientationTap Rail 32.5 mm Condensate Drain 65 mmSystem Details InformationCentral Heating Circuit BypassExpansion Vessel Central Heating only System Filling and Pressurising FigPressure Relief Valve Fig Showers Domestic Hot Water Circuit FigHard Water Areas Location Site RequirementsAt Least 1.5 7.2 Clearances Figs Site Requirement Ventilation of CompartmentsGas Supply Electrical SupplyCondensate Drain Flue Flue terminal guardEach fitting to aid assembly Flue OptionsHorizontal Flue Systems Horizontal FluesVertical Flues Twin & Vertical Flue Systems120mm Min ApartKey Accessory Size Code No Flue AccessoriesTelescopic Internal Flue Kit Twin Flue Connection Twin Flue Duct AdaptorAir Duct Connection Flue Duct Connection Boiler Adaptor Flue Dimensions For Roof TerminalsFlue Trim Terminal Guard FigPlume Displacement Kit Fig Plume DisplacementMetres Ring Adaptor 28/33 Determining Permissible LengthsExample 5121368General Fitting Notes 30mmElbow to allow the flue to be installed as shown 60Ø extension piece. It must be secured using twoUsing a suitable bit e.g mm, drill through Extension and outlet. Secure using two of the screwsInstallation Unpacking & Initial PreparationFlushing After considering the site requirementsFitting The Boiler Fitting the Pressure Relief Discharge Pipe FigCondensate Drain see section Tighten all the connectionsFitting The Flue Wall Thickness WasteFlue Elbow Ensure Elbow is fully Engaged into Boiler25mm Extension Cut End Inner Flue Support BracketEnsure Extension is fully engaged into Boiler Adaptor Preliminary Electrical Checks Making The Electrical ConnectionsTerminal Block Cover Cable Clamp Commissioning Commissioning the BoilerPressure Completion CompletionCase Front Panel Facia Panel Servicing 13 .1 Annual ServicingAnnual Servicing Inspection Case Front Panel Facia Panel Securing ScrewsBurner Sensing Electrode 10 ±1Viewing Window Igniter Fig Changing ComponentsSpark and Sensing Electrodes Fig Fan Fig Venturi FigInjector Fig Gasket Venturi Injector Cover Gas Inlet Pipe Fan CollectorInsulation Fig Burner FigBurner Gasket Extension Piece Central Heating Temperature Sensor NTC Fig Safety Thermostat FigDHW Temperature Sensor NTC Fig Flue/Heat Exchanger Thermostat Sensor FigPump Complete Fig Pump Head Only FigAutomatic Air Vent Fig Pressure Gauge Figs Hall Effect Sensor FigDiverter Valve Motor Unit & Assembly Fig Plate Heat Exchanger FigSelector Switch Fig 14.22 P.C.B. FigGas Valve Fig Throttle Adjustment ScrewExpansion Vessel Fig Setting the Gas Valve Setting the Gas Valve CO2 checkFlue Adaptor Test Point Plug Analyser Probe ThrottleIllustrated Wiring Diagram ElectricalShort Parts List Short Parts List306 302Initial Fault Finding Checks Fault FindingError Codes Error 133 flashing Go to section ‘A’ Turn the selector switch toReset position for 5 seconds Pump runsTurn selector switch to Error 133 flashing Go to section ‘I’Turn Domestic Hot Water Open DHW tap fullyPCB X3 connector terminals 3 Switch terminalFan jammed or faulty winding Replace PCB Replace waterCheck wiring Viewing Window Replace sensor or PCB E28Gas at burner Replace gas valveReplace PCB Is there 230V at Replace safety thermostatReplace sensor Page Page Condensing Boilers only Service Record Brooks House, Coventry Road, Warwick. CV34 4LL

G.C.No 47 393 22, G.C.No 47 393 23, G.C.No 47 393 21 specifications

The Baxi Potterton range, specifically the models identified by G.C. No 47 393 21, G.C. No 47 393 23, and G.C. No 47 393 22, represents a robust selection of domestic heating solutions that cater to diverse consumer needs. Known for their reliability and efficiency, these boilers are designed with advanced technologies that ensure consistent performance and high levels of user satisfaction.

One of the primary features of these models is their compact design, allowing for flexibility in installation within various home environments. Whether placed in a kitchen, utility room, or cupboard, the space-saving configurations make them ideal for homeowners with limited installation areas.

These boilers utilize a high-efficiency heat exchanger that maximizes heating output while minimizing fuel consumption. This not only results in lower energy bills for consumers but also contributes positively towards reducing carbon footprints. The G.C. No 47 393 21, 47 393 22, and 47 393 23 models are known for their impressive Seasonal Efficiency Ratings, indicating superior energy efficiency, which is vital for compliance with modern building regulations.

In terms of technology, these models feature user-friendly digital displays that provide real-time information on system performance, making it easier for users to monitor and manage their home's heating needs. Additionally, some models come equipped with advanced control systems that allow homeowners to adjust settings remotely via smartphone applications, further enhancing convenience.

Safety is paramount in the design of Baxi Potterton boilers. Each unit is equipped with multiple safety features including built-in frost protection, pressure relief valves, and gas leak detection systems. This commitment to safety ensures peace of mind for users, knowing that their heating system is designed to operate securely.

Another significant characteristic of these models is their compatibility with renewable energy sources. They can work in conjunction with solar thermal systems and can be integrated into larger renewable setups, promoting sustainability in home heating.

In summary, the Baxi Potterton G.C. No 47 393 21, G.C. No 47 393 23, and G.C. No 47 393 22 models are a testament to modern engineering and design. With their emphasis on efficiency, safety, and convenience, they provide exceptional heating solutions for today's energy-conscious homeowners.