Baxi Potterton Gold FSB 30 HE manual Fault Finding

Page 50

Mains On

Boiler On

Lockout

LED Light

LED Light

LED Light

(Green) (Green) (Red)

*denotes LED flashing

17.0Fault Finding

NOTE: The fan is supplied with 325 Vdc.

Fan Fault Finding should only be carried out after the boiler has been electrically isolated.

General Fault Finding should only be carried out by someone who is appropriately qualified.

Lights

 

 

Off Off Off

YES

Go to Electrical Supply

 

 

section of the fault finding

 

 

instructions.

Lights

 

Live & Neutral Reversed

* Off On

YES

Incoming Live and Neutral

 

 

 

 

reversed.

Lights

 

Go to Dry-Fire

* * On

YES

section of the fault finding

 

 

 

instructions.

 

 

 

Lights

 

 

 

 

On Off On

YES

Go to Ignition Lockout section

 

 

 

of the fault finding instructions.

 

 

 

Lights

 

 

 

Go to Overheat Lockout

 

 

 

 

On Off

*

 

YES

 

section of the fault finding

 

 

 

 

 

 

instructions.

 

 

 

 

 

 

Lights

*

 

Go to Fan Lockout

On

*

YES

section of the fault finding

 

 

 

 

instructions.

Lights

On * On

Lights

* Off *

Lights

On On On

Lights

* On *

Lights

*On On

Lights

On On *

Lights

* * On

YES

YES

YES

YES

YES

YES

YES

Go to Thermistor section

of the fault finding

instructions.

Low Electrical Supply

Incoming Voltage less than

180V. Check System

Controls & System Wiring. Otherwise contact Electricity Provider.

LV Wiring Harness

Ensure the small 8 way

connector is securely plugged

into the PCB. If the fault

persists replace wiring harness.

PCB Fault

Replace PCB.

PCB Fault

Replace PCB.

PCB Fault

Replace PCB.

Go to Condensate Pump section of the fault finding instructions.

50© Baxi Heating UK Ltd 2011

Page 49 Page 51
Image 50
Page 49 Page 51
Contents
FSB 30 HE Natural Gas Potterton Gold FSB 30 HE No 592Installer Notification Guidelines Scheme Members onlyLegislation Important Installation, Commissioning, Service & RepairGas Safety Installation & Use Regulations Codes of Practice, most recent version should be usedContents Important Information IntroductionDescription General Layout Flow Temperature Thermistor RedPosition of Optional Integral Timer Wiring Layout Figs , 4, 5All TRVs Shut Down ? Minute Anti-cycle Boiler OperationBoiler Operation Ipxx Technical DataCAT I 2H Dimensions and Fixings Treatment of Water Circulating Systems System DetailsWater Circulating Systems Air Vents Low Head InstallationPipework System Controls & Wiring Sealed Systems Fig Compartment Site RequirementsLocation Electrical Supply Clearances Figs &16Gas Supply 5mm Min 500mm Min For Servicing Purposes 390mmCondensate Drain General Condensate Disposal± 10 from vertical Site RequirementSink Blockage or restriction of the pipe into the drainFlue MINHorizontal Flue Systems Flue OptionsHorizontal Flue System Examples This bend is equivalent to 0.5 metreTotal equivalent length Vertical Flue System Examples Twin PipeTwin & Vertical Flue Systems 17.2 + 34.4 = 51.6 metresFlue Group B Flue AccessoriesCDS Flue Group PFor Twin Flues For Vertical Flues For Vertical Flue SystemsFor Twin Flue Systems Terminal Guard Fig Flue DimensionsFor Roof Terminals Flue Deflector aPlume Displacement Plume Displacement Kit P.D.KDetermining Permissible Lengths P.D.K This section of the flue Must be horizontal General Fitting Notes P.D.KMin metres Min .3 metres Fig. H Installation Fitting the Standard Flue Flue Inner Flue Support BracketInner Flue Support Bracket Flue Elbow Gasket Flue Trim PointsMaking the Condensate Drain ConnectionIntegral Programmer Making The Electrical ConnectionsCable Clamp Way Terminal Block Green/Yellow Schematic Wiring DiagramElectrical Fuse 3.15 ATIllustrated Wiring Diagram PCBPriming the Condensate Pump Commissioning the BoilerCommissioning the Boiler Check the Operational Working Gas Inlet Pressure Fitting The Case Panels & Facia 13.2 ‘Benchmark’ ChecklistCompletion HandoverServicing the Boiler Annual ServicingEarth Combustion Box Door Panel Annual Servicing InspectionAir Box Door Panel Spark Sleeve InsulationLock Nut Service Drain Plug Central Insulation Panel Pipe may be removed to increase accessCracks/damage. Clean with a soft brush To it FigChanging Components & Preparation Flow Temperature Thermistor and Safety Thermostat FigChanging Components Drain the boiler see .1 paragraph 2 Condensate Pump Complete aClip Check operation of the pump See SectionChanging Components Spark and Sensing Electrodes Fig Condensate Trap Fig Injector Pipe FigGas Valve Fig Securing Nut Sensor Leads Condensate Trap Lock NutCombustion Box Door Panel Burner Support Bracket Heat Exchanger Manifold AssemblyHeat Exchanger Burner Securing Screws Key Description Short Parts ListShort Parts List Fault Finding 240V at C ? 240V at a ?240V at B ? 240V at D ?System full of water ? Wires from inline Connector to PCB faultyViewed from Wire Entry end Replace Flow Switch Pump running ?Replace PCB Way Connector Lead from PCB to Gas Valve faulty Wiring from PCBRectify wiring Is there Gas at gas valve inlet ?Lights On Off Replace Stat Replace fan Lights Rectify wiring Viewed from Wire Entry end YES ‘C’ ‘D’ ‘B’‘A’ Condensing Boilers only Service Record Potterton Brooks House, Coventry Road, Warwick. CV34 4LL Comp No 6/11