Error 133 flashing, Pump runs | Baxi Potterton 47-393-42, 47-393-40

18.0 Fault Finding

Refer to Section 16.0 “Illustrated Wiring Diagram” for position of terminals and components

Central Heating - Follow operational sequence

Turn selector switch to

NO

The display illuminates

YES

Error 110 flashing

YES

Error 130 flashing

Error 133 flashing

NO

YES

Error 20, 28 or 50 flashing

NO

YES

Error 119 flashing

NO

Turn Central Heating

NO

thermostat to Maximum.

Pump runs

YES

YES

Error 125 or 193 flashing

NO

NO

3-way valve is open to Central

Heating circuit

YES

NO

Fan runs

YES

NO

Fan runs at correct speed

YES

Spark at ignition electrodes for

NO

up to 5 seconds and for 3

attempts

YES

NO

Go to section ‘A’

	Turn the selector switch to			YES
	reset position for 5 seconds


	Go to section ‘E’


	Go to section ‘C’


	NO

	Ensure all controls (and			YES
	integral clock if fitted) are			YES
	calling for heat


	Ensure that primary
	circulation is OK & that
	there is no blockage


	Go to section ‘K’


	Error 160 flashing
	Go to section ‘D’


	Error 160 flashing
	Go to section ‘L’
				YES

	Error 133 flashing
	Error 133 flashing


	Go to section ‘F’

If the error 110 is still flashing.

Go to section ‘J’

Ensure controls are set to

demand and verify the

contacts are closed

Go to section ‘B’

Go to section ‘H’

Turn the selector switch to

reset

		YES
	Burner lights	YES
	Burner lights

YES

NO

Burner output modulates to maintain the temperature set

Burner does not stay alights

after 5 seconds

Check the Central Heating

NTC sensor

Go to section ‘E’

Error 130 flashing

Go to section ‘M’

YES

Error 133 flashing Go to section ‘I’

YES

Burner goes out

YES

Fan stops after 10 seconds

YES

Pump continues to run for 3

minutes

(room thermostat open)

YES

Operation sequence

successful

© Baxi Heating UK Ltd 2012

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Baxi Potterton 47-393-42 Error 133 flashing, Pump runs, Heating circuit, Go to section ‘A’ Turn the selector switch to

47-393-40, 47-393-41, 47-393-39, 47-393-42 specifications

The Baxi Potterton 47-393-42, 47-393-39, 47-393-41, and 47-393-40 are models of high-efficiency gas boilers designed for residential heating. These models are well-known for their reliability, advanced technology, and user-friendly features, making them a popular choice among homeowners looking to improve their heating systems.

One of the standout features of these models is their energy efficiency. Each unit is engineered to comply with stringent energy-saving regulations, significantly reducing utility bills while maintaining optimal heating performance. They are rated with impressive efficiency ratings, which can lead to long-term savings and a reduced carbon footprint.

The Baxi Potterton range employs a heat exchanger system designed to maximize heat transfer and minimize energy waste. This sophisticated technology ensures that the boiler operates at peak efficiency, providing ample heating for homes even in the coldest months. The use of a durable, high-quality heat exchanger material contributes to the longevity of the unit, reducing the need for frequent repairs or replacements.

Ease of use is another hallmark of the 47-393 series. With an intuitive digital display, users can effortlessly monitor and adjust settings as required. The controls are straightforward, allowing for quick temperature adjustments, system diagnostics, and alerts, creating a hassle-free experience for homeowners.

Safety features are inherent in these models, including built-in safeguards against overheating and pressure fluctuations. The automatic shut-off mechanism ensures that the boiler operates within safe parameters, providing peace of mind to users.

Furthermore, maintenance is simplified with the easy access design. The accessible components make it straightforward for service technicians to perform routine checks and repairs. Regular maintenance is essential for sustaining high performance and extending the lifespan of the boiler.

In conclusion, the Baxi Potterton 47-393-42, 47-393-39, 47-393-41, and 47-393-40 models represent a blend of efficiency, safety, and convenience. Their advanced technologies and features not only enhance the user experience but also contribute to more sustainable heating solutions for homes. Investing in one of these advanced boilers ensures reliable performance, lower energy costs, and a commitment to environmental responsibility.

Contents

Installation & Service Instructions Potterton Titanium Natural Gas Scheme Members only Installer Notification Guidelines Legislation Important Installation, Commissioning, Service & RepairCodes of Practice refer to the most recent version Technique Safe Manual HandlingGeneral Preparation Contents Introduction Contents of PackDescription Expansion Vessel Automatic Air Vent Domestic Hot Water Mode Light DisplayGeneral Layout Layout Appliance Operation Central Heating Mode FigDomestic Hot Water Mode Fig Frost Protection Mode Titanium 24, 28, 33 Technical Data 22mm 15mm Dimensions and FixingsOrientation Tap Rail 32.5 mm Condensate Drain 65 mm Bypass System DetailsInformation Central Heating Circuit Expansion 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 Electrical Supply Site RequirementVentilation of Compartments Gas Supply Condensate Drain 500mm min 50mm per Insulation RunMinimum fall Boiler External runs & those Flue Horizontal Flues Each fitting to aid assemblyFlue Options Horizontal Flue Systems Apart Vertical FluesTwin & Vertical Flue Systems 120mm Min Key Accessory Size Code No Flue AccessoriesTelescopic Internal Flue Kit Twin Flue Connection Twin Flue Duct AdaptorAir Duct Connection Flue Duct Connection Boiler Adaptor Terminal Guard Fig Flue DimensionsFor Roof Terminals Flue Trim Ring Bracket Plume DisplacementPlume Displacement Kit Fig Elbow/Plume Outlet Assembly Example Flue Lengths OK 28/33/40Determining Permissible Lengths Example 30mm General Fitting Notes Extension and outlet. Secure using two of the screws Elbow to allow the flue to be installed as shown60Ø extension piece. It must be secured using two Using a suitable bit e.g mm, drill through After considering the site requirements InstallationUnpacking & Initial Preparation Flushing Fitting the Filling Loop Kit Fitting the Pressure Relief Discharge Pipe Fig Fitting The BoilerCondensate Drain see section Wall Thickness Waste Flue Fitting The FlueWall Thickness Flue Elbow Ensure Elbow is fully engaged into Boiler Adaptor 25mm Extension Cut End Inner Flue Support BracketEnsure Extension is fully engaged into Boiler Adaptor Preliminary Electrical Checks Making The Electrical Connections Screw Pump Automatic Air Vent Selector Switch DisplayCommissioning Commissioning the Boiler Pressure Setting the Timer Completion CompletionCase Front Panel Facia Panel 13 .1 Annual Servicing ServicingAnnual Servicing Inspection Burner Sensing Electrode 10 ±1Viewing Window Igniter Fig Changing ComponentsSpark and Sensing Electrodes Fig Gasket Venturi Injector Cover Gas Inlet Pipe Fan Collector Fan FigVenturi Fig Injector Fig Insulation Fig Burner FigBurner Gasket Extension Piece Flue/Heat Exchanger Thermostat Sensor Fig Central Heating Temperature Sensor NTC FigSafety Thermostat Fig DHW Temperature Sensor NTC Fig Pump Complete Fig Pump Head Only FigAutomatic Air Vent Fig Hall Effect Sensor Fig Pressure Gauge Figs Plate Heat Exchanger Fig Diverter Valve Motor Unit & Assembly Fig 14.22 P.C.B. Fig Selector Switch Fig Gas Valve Fig Throttle Adjustment ScrewExpansion Vessel Fig Throttle Setting the Gas ValveSetting the Gas Valve CO2 check Flue Adaptor Test Point Plug Analyser Probe Electrical Illustrated Wiring Diagram 302 Short Parts ListShort Parts List 306 Initial Fault Finding Checks Fault FindingError Codes Pump runs Error 133 flashingGo to section ‘A’ Turn the selector switch to Reset position for 5 seconds Open DHW tap fully Turn selector switch toError 133 flashing Go to section ‘I’ Turn Domestic Hot Water Replace water PCB X3 connector terminals 3Switch terminal Fan jammed or faulty winding Replace PCB Replace gas valve Check wiring Viewing WindowReplace sensor or PCB E28 Gas at burner Replace PCB Is there 230V at Replace safety thermostatReplace sensor Page Page GAS Boiler System Commissioning Checklist Service Record Potterton