Baxi Potterton Gold FSB 30 HE manual Lights On Off Replace Stat

Page 54

OVERHEAT LOCKOUT

Disconnect

black stat on flow pipe.

When flow < 60° C is there

continuity across stat ?

YES

Reconnect stat.

Disconnect fan stat.

When fan temp < 60° C

is there continuity

across stat ?

YES

Reconnect stat.

Disconnect the larger of

the 6-way PCB connectors.

Is there continuity

across M ?

YES

Disconnect thermistor

(red sensor on flow pipe).

Is resistance between

0.5kë & 20kë ?

YES

Is

combustion chamber

door seal damaged or not in

place ?

NO

Replace PCB.

NO

NO

NO

NO

YES

Lights

On Off *

Replace Stat.

Replace Stat.

Wiring from PCB to thermostats faulty.

Replace thermistor.

Replace combustion

chamber door seal & trim

seal.

17.0Fault Finding

M

6-way Connector

54© Baxi Heating UK Ltd 2011

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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 Introduction DescriptionImportant Information General Layout Flow Temperature Thermistor RedPosition of Optional Integral Timer Wiring Layout Figs , 4, 5Boiler Operation Boiler OperationAll TRVs Shut Down ? Minute Anti-cycle Technical Data CAT I 2HIpxx Dimensions and Fixings System Details Water Circulating SystemsTreatment of Water Circulating Systems Low Head Installation PipeworkAir Vents System Controls & Wiring Sealed Systems Fig Site Requirements LocationCompartment 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 Vertical Flues For Vertical Flue Systems For Twin Flue SystemsFor Twin Flues Terminal Guard Fig Flue DimensionsFor Roof Terminals Flue Deflector aPlume Displacement Plume Displacement Kit P.D.KDetermining Permissible Lengths P.D.K General Fitting Notes P.D.K Min metres Min .3 metresThis section of the flue Must be horizontal Fig. H Installation Fitting the Standard Flue Flue Inner Flue Support BracketInner Flue Support Bracket Flue Elbow Gasket Flue Trim PointsMaking the Condensate Drain ConnectionMaking The Electrical Connections Cable Clamp Way Terminal BlockIntegral Programmer Green/Yellow Schematic Wiring DiagramElectrical Fuse 3.15 ATIllustrated Wiring Diagram PCBCommissioning the Boiler Commissioning the BoilerPriming the Condensate Pump 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 FigFlow Temperature Thermistor and Safety Thermostat Fig Changing ComponentsChanging Components & Preparation 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 NutHeat Exchanger Manifold Assembly Heat ExchangerCombustion Box Door Panel Burner Support Bracket Burner Securing Screws Short Parts List Short Parts ListKey Description 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 ‘C’ ‘D’ ‘B’ ‘A’YES Condensing Boilers only Service Record Potterton Brooks House, Coventry Road, Warwick. CV34 4LL Comp No 6/11